Refine
Year of publication
Document Type
- Article (185)
- Part of Periodical (69)
- Preprint (62)
- Book (37)
- Part of a Book (29)
- Conference Proceeding (27)
- Working Paper (15)
- Report (8)
- Doctoral Thesis (4)
- Other (3)
Language
- English (443) (remove)
Has Fulltext
- yes (443) (remove)
Keywords
- Computerlinguistik (28)
- Deutsch (20)
- Syntax (16)
- Japanisch (15)
- new species (11)
- Grammatik (10)
- Multicomponent Tree Adjoining Grammar (9)
- Optimalitätstheorie (9)
- Maschinelle Übersetzung (8)
- Syntaktische Analyse (8)
Institute
- Extern (443) (remove)
Twelve extant species of antlions are known from Hispaniola including four new species (Eremoleon petrophila, Eremoleon phasma, Purenleon nunezi, Purenleon woodruffi) and one new genus (Peruveleon). Five New World species are transferred into Peruveleon resulting in new combinations: Peruveleon bruneri (Alayo), Peruveleon camposi (Banks), Peruveleon dolichogaster (Navás), Peruveleon dorsalis (Banks), Peruveleon indiges (Walker). Vella fallax haitiensis Smith is considered a new synonym of Vella eggerti Esben-Petersen. Descriptions and records for the species are provided as well as keys to the adults and larvae. The larvae of eleven species were found and reared.
Two species of the genus Tefflus Latreille (Coleoptera: Carabidae), commonly known as “peaceful giant ground beetles,” are recorded from the Republic of South Africa: T. carinatus carinatus Klug and T. meyerlei delagorguei Guérin-Méneville. Distribution records from the Republic of South Africa are summarized and mapped for both species. Tefflus c. carinatus has been collected in KwaZulu-Natal and Mpumalanga Provinces, while T. m. delagorguei has been recorded from Free State, Gauteng, KwaZulu-Natal, Limpopo, and Mpumalanga Provinces. Adults of both species are illustrated. Seasonal and temporal activity patterns and defensive and foraging behaviors are characterized for T. m. delagorguei based on recent field studies in the Kruger National Park, Republic of South Africa.
Eight species of the genus Psilotreta Banks (Trichoptera: Odontoceridae) are currently known from Vietnam: P. albogera Mey 1997, P. androconiata Mey 1997, P. bidens Mey 1995, P. enikoae Oláh and Johanson 2010, P. frigidaria Mey 1996, P. jaroschi Malicky 1995, P. papaceki Malicky 1995, P. spitzeri Malicky 1995. A new species, Psilotreta kurenschikovorum, from Thua Thien-Hue Province is herein described. The new species differs from other species of the genus by peculiarities in wing venation, by the unusual shape of epicranial suture on the head, and by the bifid apical segment of the inferior appendage. Additional province and collection information for previously recorded species are included.
Curculionoidea (Coleoptera) of the West Indian island of Dominica are composed of 111 genera and 214 species and subspecies. Some of the species listed are morphospecies, or are known to be undescribed, but all are identified at least to genus. Previously the fauna was recorded as 31 species. Numbers presented herein represent a seven-fold increase in species diversity. Furthermore, the widespread nature of many species demonstrates that the supposedly endemic faunas of many West Indian islands may be based on collecting biases or a lack of people capable of providing species level identifications.
The beetles of Martinique, Lesser Antilles (Insecta: Coleoptera); diversity and distributions
(2011)
This paper summarizes the published information on the beetle fauna of the island of Martinique, in the Lesser Antilles. The fauna is known to contain 42 families, with 201 genera, and 270 species. The families with the largest numbers of species are Cerambycidae (57), Curculionidae (43), Scarabaeidae (42), Tenebrionidae (18), and Staphylinidae (17). At least 15species (5.5%) were probably accidentally introduced to the island by human activities. Forty six species (17.0%) are endemic (restricted) to the island and likely speciated on the island. Sixty seven species (24.8%) are shared only with other islands of the Lesser Antilles (Lesser Antillean endemics), and 26 species (9.6%) are more widespread Antilles endemics. The remaining 116 species (42.8%) in the fauna are otherwise mostly widely distributed in the Antilles and the Neotropical Region. The Martinique beetle fauna has mostly originated elsewhere than on Martinique and is largely an immigrant fauna from other islands of the West Indies or the continental Neotropics. The numbers of Martinique species shared with other larger islands of the Lesser Antilles are (north to south) Montserrat (73), Guadeloupe (175), Dominica (98), St. Lucia (68), St. Vincent (93), and Grenada (88). Undoubtedly, the real number of species on Martinique is much higher than now reported and may actually be around 1600 or more species.
Saba Island (Caribbean Netherlands) is one of the northernmost islands of the Lesser Antilles. It is only 13 square kilometers but contains a wide variety of potential spider habitats including dry, moist, and elfin forests. As part of a collaborative effort between Conservation International and Saba Conservation Foundation, during a several week period in March and May 2008 we briefly surveyed the island for spiders and other arthropods. This survey, the first for spiders of Saba, resulted in the identification of 18 families and 76 spider species, including six new species that will be described elsewhere and may be endemic to Saba. The species richness of Saba’s spider fauna is considerably higher than that reported from other small Caribbean islands. We conclude this is probably a combined result of undersampling and lower habitat diversity on these other islands.
A list of taxa belonging to Xylotrupes Hope (Scarabaeidae: Dynastinae: Dynastini) is presented which incorporates several taxonomic actions: X. australicus darwinia Rowland comb. nov.; X. damarensis Rowland stat. nov.; X. lorquini zideki Rowland comb. nov.; X. macleayi szekessyi Endrödi comb. nov.; X. pachycera Rowland stat. nov.; X. philippinensis philippinensis Endrödi stat. nov.; X. philippinensis peregrinus Rowland comb. nov.; X. sumatrensis tanahmelayu Rowland comb. nov.; X. tadoana Rowland stat. nov.; X. telemachos Rowland stat. nov.; X. wiltrudae Silvestre stat. nov. Two new taxa are described: X. carinulus sp. nov. and X. clinias buru ssp. nov. Lectotypes are designated for X. lamachus Minck and X. clinias Schaufuss. Xylotrupes lamachus is found to be a junior subjective synonym of X. ulysses (Guérin-Méneville), new synonymy.
Neoma, a new genus of Cerambycidae (Coleoptera: Cerambycidae: Prioninae: Macrotomini) is described for Mallodonopsis corrosus Bates, 1879, compared to related genera (Aplagiognathus Thomson, 1861; Archodontes Lameere, 1903; and Mallodonopsis Thomson, 1861), and its tribal position discussed. A lectotype for Mallodonopsis corrosus is here designated with the species redescribed and figured.
The Orizabus Fairmaire (Coleoptera: Scarabaeidae: Dynastinae: Pentodini) of the USA are reviewed. Orizabus pinalicus new species and O. mcclevei new species are described. Lectotypes are here designated for eight species names: Bothynus pyriformis LeConte, Pseudaphonus lucidus Casey, Orizabus snowii Horn, Orizabus cultripes Fairmaire, Orizabus isodonoides Fairmaire, Orizabus sallei Fairmaire, Orizabus fontinalis Casey, and Orizabus ponderosus Casey. Illustrations of diagnostic characters and a key to the five included species are presented. The Mexican species O. isodonoides and O. rubricollis Prell are also illustrated for comparison to the new species.
A revision of the genus Gymnetina Casey, 1915 (Coleoptera: Scarabaeidae: Cetoniinae: Gymnetini)
(2011)
The genus Gymnetina Casey (Coleoptera: Scarabaeidae: Cetoniinae: Gymnetini) is redescribed and revised. Three new species and one new subspecies are described: G. borealis Warner and Ratcliffe, G. grossepunctata Ratcliffe and Warner, G. howdeni Warner and Ratcliffe, and G. cretacea sundbergi Warner and Ratcliffe. Gymnetina salicis (Bates), new status, is removed from synonymy with G. cretacea (LeConte), and G. alboscripta (Janson) is transferred from Gymnetis MacLeay to Gymnetina becoming Gymnetina alboscripta (Janson), new combination. Redescriptions of previously known species, a key for identification, and illustrations of the six species are provided. A brief biogeographical analysis suggests that ancestral taxa dispersed northwards from Guatemala and Mexico to the southwestern United States.
Acoma howdenorum, Acoma westcotti, Acoma quadrilaminata, and Acoma cimarron (Coleoptera: Scarabaeidae: Melolonthinae), all new species, are described from Yuma County, Arizona, USA, and Baja California Sur, Baja California (Norte), and Sonora, Mexico, respectively. Habitus of the four new species is illustrated, and an updated key to the described species in the genus is provided. Distribution and variation of Acoma glabrata Cazier are also discussed.
The monotypic aesaline genus Lucanobium Howden and Lawrence (Coleoptera: Lucanidae) was previously known only from Venezuela. A second species is here described as new from French Guiana, extending the range of the genus approximately 1800 km to the southeast. The generic description of Lucanobium is updated with respect to the discovery of a second species.
The female of Nothopleurus subsulcatus (Dalman, 1823) (Coleoptera: Cerambycidae: Prioninae: Macrotomini) is described for the first time, and the female of Strongylaspis bullata Bates, 1872 is redescribed. Color photographs of the habitus of both, and key characters for the former are included. New distributional records within Mexico for N. subsulcatus and Strongylaspis championi Bates, 1884 are given.
Neolecanium amazonensis Foldi is redescribed and illustrated and is transferred to the new genus Foldilecanium Kondo as Foldilecanium amazonensis (Foldi) comb. nov. A new species, Foldilecanium multisetosus Kondo, is described and illustrated based on specimens collected in Cali, Colombia, on Cananga odorata (Lam.) Hook.f. and Thomson (Annonaceae). An updated taxonomic key to New World Myzolecaniinae and a key to separate the two species of Foldilecanium are provided.
From 1995 to 2004 collections for Bruchidae (Coleoptera) were made in La Reserva de la Biósfera Sierra de Huautla, Morelos, Mexico. Specimens were reared from mature seedpods, but also collected by net, malaise trap, and light trap. In total 72 species in 13 genera of Bruchidae were recovered. Of those two new species are here described: Amblycerus montalvoi Romero and Acanthoscelides camerinoi Romero. We record 27 host plants for the bruchids found in the study area.
I add new collection and phenological data on the North American earwigfly, Merope tuber Newman, and new county records for the red scorpionfly, Panorpa rufa Gray, and veined scorpionfly, Panorpa venosa Westwood, in Florida. Additionally, I report on a new Georgia county record for the extralimital species, Panorpa ferruginea Byers, the ferruginous scorpionfly, and speculate on its potential occurrence in Florida.
Five new species of anilline ground beetles (Carabidae: Trechinae: Bembidiini) are described from the Appalachian Mountains and Piedmont Plateau of eastern United States. Two species, Anillinus unicoi n. sp. (from the Unicoi Mountains, North Carolina) and A. carltoni n. sp. (from the Great Smoky Mountains, North Carolina/Tennessee), inhabit the crests of adjacent mountain ranges, and share similarities with A. moseleyae Sokolov and Carlton. These three comprise a high-altitude group of species in the region. The third species A. chilhowee n. sp. is one of the smallest representatives of the loweae-group of species. It differs from its relatives in characters of male genitalia and inhabits the isolated Chilhowee Mountain ridge between Ocoee and Hiwassee Rivers (Polk County, Tennessee). The fourth and fifth species possess complex arrays of spines on the internal sac of the aedeagus, similar to A. valentinei (Jeannel) from caves of Alabama. In the case of A. smokiensis n. sp. (Gregory Cave, Great Smoky Mountains National Park, Tennessee), the aedeagal similarity suggests a close relationship with A. valentinei. Anillinus chandleri n. sp. from the Piedmont Plateau (Sumter National Forest, South Carolina) is similar to A. cornelli Sokolov and Carlton, also described from the Carolina Piedmont region. Keys are provided for the new species, where possible.
First discovered in 1934 and described as a variety of Cicindela abdominalis Fabricius (Coleoptera: Cicindelidae), the form floridana, to our knowledge, has not been recollected until we discovered it in 2007, south of the presumed type locality. From our examination of the type specimen, eight paratypes and 40 specimens from the new locality and additional study, we reinterpreted its status to be a full species. This interpretation is based on distinctive and consistent differences from the closely related Cicindelidia scabrosa (Schaupp). These differences include morphology (maculation, color and elytral microsculpture), distribution, habitat, and seasonality. We present here a more detailed description of this species within the genus Cicindelidia Rivalier, following Rivalier and Wiesner becoming Cicindelidia floridana (Cartwright) new combination.
Nine new species of Hyperaspis from various South American localities are described, illustrated, and compared with previously described taxa. New taxa are: Hyperaspis luciae, H. corcovado, H. divaricata, H. humboldti, H. mimica, H. praecipua, H. unimaculosa, H. drechseli, and H. esmeraldas. Hyperaspis pectoralis Crotch is recognized as a valid species of Hyperaspis and integrated into the existing classification.
This paper summarizes the published information on the beetle fauna of the northern Leeward Islands (Anguilla, Antigua, Barbuda, Nevis, Saba, St. Barthélemy, St. Eustatius, St. Kitts, St. Martin-St. Maarten, and smaller associated islands, excluding Montserrat). These islands are generally smaller, lower, and drier than the remaining Leeward and Windward islands of the Lesser Antilles island arc. The fauna contains 26 families, with 155 genera, and 218 species. The families with the largest number of recorded species are Staphylinidae (36), Cerambycidae (28), Scarabaeidae (25), Tenebrionidae (23), Curculionidae (18), and Carabidae (15). At least 7 species (3.2% of the fauna) were probably introduced to the island by human activities. Sixteen species (7.3%) are endemic (restricted) to a single paleo-island bank and likely speciated there. Twenty nine species (13.3%) are shared only with other islands of the Lesser Antilles (Lesser Antillean endemics), and 43 species (19.7%) are more widespread Antilles endemics. The remaining 123 species (56.4%) in the fauna are otherwise mostly widely distributed in the Antilles and the Neotropical Region. The local beetle fauna is largely an immigrant fauna and has mostly originated elsewhere than on the islands of the northern Leewards. Summary data on total species endemicity of the entire Lesser Antilles indicate the presence of at least 1278 endemic beetle species, which is a density of about 20.7 species per 100 km2. This is now equivalent to that of the endemic vascular plants of the Caribbean islands. This truly makes the Caribbean islands a biodiversity hotspot for beetles. For the northern Leewards, it is evident that the beetle diversity is markedly understudied, and that the actual number of species is many times higher than now known.
The biogeographic significance of Diplopoda is substantiated by 50 maps documenting indigenous occurrences of the 16 orders, the three Spirostreptida s. l. suborders – Cambalidea, Epinannolenidea, Spirostreptidea – and all higher taxa including Diplopoda itself. The class is indigenous to all continents except Antarctica and islands/archipelagos in all temperate and tropical seas and oceans except the Arctic; it ranges from Kodiak Island and the northern Alaskan Panhandle, United States (USA), southern Hudson Bay, Canada, and near or north of the Arctic Circle in Iceland, continental Scandinavia, and Siberia to southern “mainland” Argentina, the southern tips of Africa and Tasmania, and Campbell Island, subantarctic New Zealand. The vast, global distribution is interrupted by sizeable, poorly- or unsampled areas including the Great Basin, USA; the Atacama Desert region of Chile and neighboring countries; southern South American islands; the central Kalahari and Sahara deserts; the Gobi Desert, Mongolia, and all of north-central and western China; from north of the Caspian Sea, Russia, to central Kazakhstan; and the “Outback” of central Australia. Five Arabian countries lack both samples and published records of indigenous diplopods – Bahrain, Kuwait, Oman, Qatar, and United Arab Emirates – as do Turks and Caicos, in the New World, and Mauritania and possibly Egypt, Africa. New records, including the first for Chilognatha from Botswana and the first specific localities from Northern Territory, Australia, are cited in the Appendix. Increased emphasis on mappings in taxonomic research is warranted along with investigations of insular “species swarms” that constitute a microcosm of the early evolution of the class. The largest “species swarm” in the Diplopoda is Diplopoda itself!
An annotated world catalogue and bibliography of the cucujoid family Propalticidae (Coleoptera) is presented. Each taxon is accompanied by a complete taxonomic history, including a full annotated synonymy with original references cited, and current location and status of primary types. The name Slipinskogenia nom. nov. is proposed to replace Discogenia Kolbe, 1897, junior homonym of Discogenia LeConte, 1866, resulting in 11 new combinations. A key is provided for separation of the two genera included in the family. Complete published and previously unpublished distributional data are given.
Pocket gopher burrows (Rodentia: Geomyidae) were sampled from five previously unsampled localities in northern Louisiana to determine the associated faunal composition of Histeridae and Scarabaeidae (Coleoptera). Sampling produced four species of Histeridae and seven species of Scarabaeidae, all of which had been previously reported from Louisiana. The most commonly collected scarab beetle was Cryptoscatomaseter haldemani (Horn) followed by Geomyphilus insolitus (Brown). Onthophilus kirni Ross was the most commonly collected hister beetle.
A catalogue of aphidiine parasitoids (Hymenoptera: Braconidae: Aphidiinae) associated with various aphids species occurring in India was compiled. The present catalogue with 125 species under 22 genera has been further reinforced with not only all the latest taxonomic changes but also host names, host plants, distribution in India etc.
An additional 137 species and two tribes are added to the cerambycid fauna of Bolivia while 12 species are deleted. This brings the total number of species known from Bolivia to 1,561. Comments and statistics regarding the growth of knowledge on the Bolivian Cerambycid fauna and species endemicity are included.
In the field of mycology at the present time, many of the fungi which are most frustrating to attempt to classify are the Ascomycetes of pyrenomycetous nature. While it is possible to identify many species from descriptions in the literature, the position of these species in respect to one another is difficult to assign. A major step toward a modern classification was provided by Luttrell (1951b, 1955), where he expanded Miller's (1928) and Nannfeldt's (1932) recognition of differences between the subclasses Loculoascomycetes and Euascomycetes and utilized the basic characteristics of the ascus and of centrum development to delimit major groups. Currently, studies of generic types by a number of investigators are providing a firm base for the assignment of taxa to the correct genus. Several systems of classification are available, but none of these is entirely satisfactory. The following synopsis is offered as an alternative arrangement of one order in the Loculoascomycetes. For the present, the system applies to fungi known from temperate North America. The classification probably will have to be expanded and emended as tropical and temperate fungi from other continents are studied. My intention is to continue with similar studies of taxa in the other orders of both Loculoascomycetes and Euascomycetes.
The avifauna of the island of Flores and its satellite islands from Komodo to Alor is reviewed, combining historical data with recent observations. Recent surveys have added substantially to the data base, especially of the resident forest species, and endangered and endemic taxa, as well as adding a number of migrant and maritime species to the island list. Of particular interest are the rare forest endemics Wallace's Hanging-parrot Loriculus flosculus, the almost unknown Flores Scopsowl Otus alfredi, Flores Monarch Monarcha sacerdotum and Flores Crow Corvus florensis. An appeal is made for further surveys over the eastern part of the island and the eastern island chain.
Finding the peripheries : sovereignty and colonialism in nineteenth-century international law
(1999)
The special issue of The Linguistic Review on "The Role of Linguistics in Cognitive Science" presents a variety of viewpoints that complement or contrast with the perspective offered in Foundations of Language (Jackendoff 2002a). The present article is a response to the special issue. It discusses what it would mean to integrate linguistics into cognitive science, then shows how the parallel architecture proposed in Foundations seeks to accomplish this goal by altering certain fundamental assumptions of generative grammar. It defends this approach against criticisms both from mainstream generative grammar and from a variety of broader attacks on the generative enterprise, and it reflects on the nature of Universal Grammar. It then shows how the parallel architecture applies directly to processing and defends this construal against various critiques. Finally, it contrasts views in the special issue with that of Foundations with respect to what is unique about language among cognitive capacities, and it conjectures about the course of the evolution of the language faculty.
A new genus is proposed within the family Geophilidae: Hyphydrophilus n. gen., for H. adisi n.sp. Four additional new species are described, i.e. the ballophilids ltyphilus crabilli n.sp. and Taeniolinllm arborum n.sp. and the schendylids Pecfiniunguis ascendens n.sp. and Schendyluflls amazonicl/s n.sp. The geophilid species Ribautia centralis (SILVESTRI, 1907) is redescribed, after material from Brazil compared with the holotype. The ballophilid Thalthybil/s perrieri BROLEMANN, 1909 is transferred to the genus ltyphi/us COOK, 1889 and a lectotype is designated here for it.
This paper is an annotated catalogue of the geophilomorph centipedes known from Mexico, Central America, West Indies, South America and the adjacent islands. 310 species and 4 subspecies in 91 genera in 111 families are listed, not including 6 additional taxa of uncertain generic identity and 4 undescribed species provisionally listed as 'n.sp.' under their respective genera. Sixteen new combinations are proposed: Garrina pujola (CHAMBERLIN, 1943) and G. vera (CHAMBERLIN, 1943), both from Pycnona; Nesidiphilus plusiopol'us (ATTEMS, 1947), from Mesogeophilus VERHOEFF, 1901; Polycricus bredini (CRABILL, 1960), P. cordoballensis (VERHOEFF, 1934), P. hailiensis (CHAMBERLIN, 1915) and P. nesiotes (CHAMBERLIN, 1915), all from Lestophilus; Tuoba baeckstroemi (VERHOEFF, 1924), from Geophilus (Nesogeophilus); T. culebrae (SILVESTRI, 1908), from Geophilus; T. laticollis (ATTEMS, 1903), from Geophilus (Nesogeophilus); Titanophilus hasei (VERHOEFF, 1938), from Notiphilides (Venezuelides); T. incus (CHAMBERLIN, 1941), from Incorya; Schendylops nealotus (CHAMBERLIN, 1950), from Nesondyla nealota; Diplethmus porosus (ATTEMS, 1947), from Cyclorya porosa; Chomatobius craterus (CHAMBERLIN, 1944) and Cil. orizabae (CHAMBERLIN, 1944), both from Gosiphilus. The new replacement name Schizonampa Iibera is proposed pro Schizonampa prognatha (CRABILL, 1964) ex Schizotaellia prognatha CRABILL, 1964 nec Schizotaenia prognatha COOK, 1896.
A new family (Macronicophilidae) is established for Macronicophilus Silvestri, 1909, currently placed in Geophilidae. Seven new species of Neotropical Geophilomorpha are described: Ilyphilus saudus n.sp. and I. sensibilis n.sp. (Baliophilidae), Hyphydrophilus projeclUs n.sp. and Ribautia onycophaena n.sp. (Geophilidae), Macronicophilus abbrevialus n.sp., M. unguiseta n.sp. and M. venezolanus n.sp. (Macronicophilidae). The hitherto unknown male of Schendylops marchantariae (PEREIRA, MINELLI & BARBIERI, 1995) is described and two species (Pectiniunguis geayi (BROLEMANN & RIBAUT, 1911) and Ityphilus calinus CHAMBERLIN, 1957 are redescribed from the type and new material. A key to the species of Macronicophilus is provided.
Background: The interferon-inducible immunity-related GTPases (IRG proteins/p47 GTPases) are a distinctive family of GTPases that function as powerful cell-autonomous resistance factors. The IRG protein, Irga6 (IIGP1), participates in the disruption of the vacuolar membrane surrounding the intracellular parasite, Toxoplasma gondii, through which it communicates with its cellular hosts. Some aspects of the protein's behaviour have suggested a dynamin-like molecular mode of action, in that the energy released by GTP hydrolysis is transduced into mechanical work that results in deformation and ultimately rupture of the vacuolar membrane. Results: Irga6 forms GTP-dependent oligomers in vitro and thereby activates hydrolysis of the GTP substrate. In this study we define the catalytic G-domain interface by mutagenesis and present a structural model, of how GTP hydrolysis is activated in Irga6 complexes, based on the substrate-twinning reaction mechanism of the signal recognition particle (SRP) and its receptor (SRalpha). In conformity with this model, we show that the bound nucleotide is part of the catalytic interface and that the 3'hydroxyl of the GTP ribose bound to each subunit is essential for trans-activation of hydrolysis of the GTP bound to the other subunit. We show that both positive and negative regulatory interactions between IRG proteins occur via the catalytic interface. Furthermore, mutations that disrupt the catalytic interface also prevent Irga6 from accumulating on the parasitophorous vacuole membrane of T. gondii, showing that GTP-dependent Irga6 activation is an essential component of the resistance mechanism. Conclusions: The catalytic interface of Irga6 defined in the present experiments can probably be used as a paradigm for the nucleotide-dependent interactions of all members of the large family of IRG GTPases, both activating and regulatory. Understanding the activation mechanism of Irga6 will help to explain the mechanism by which IRG proteins exercise their resistance function. We find no support from sequence or G-domain structure for the idea that IRG proteins and the SRP GTPases have a common phylogenetic origin. It therefore seems probable, if surprising, that the substrate-assisted catalytic mechanism has been independently evolved in the two protein families.
This review lists Agama smithii Boulenger 1896 as a synonym of Agama agama (Linnaeus 1758), Agama trachypleura Peters 1982 as a synonym of Acanthocercus phillipsii (Boulenger 1895) and describes for the first time Acanthocercus guentherpetersi n. sp. Without more convincing evidence, Chamaeleon ruspolii Boettger 1893 cannot be accepted as specifically distinct from Chamaeleo dilepis Leach 1819, nor Chamaeleo calcaricarens Böhme 1985 from C. africanus Laurenti 1768. Consequently, 101 species of lizard are currently recognised in Ethiopia, of which some 40% appear to be denizens of the Somali-arid zone. This significant proportion is attributable in part to the importance of the Horn of Africa as a centre for reptilian diversification and endemicity, in part to the fact that this lowland fauna was rather extensively sampled during the 1930s, but also to the conspicuous neglect of lizards in other regions of the country. Mountain and forested habitats are widespread in Ethiopia, so it seems extraordinary to record only five saurian species which are believed to be endemic in such environments. The inference that there are many more still to be discovered has important implications for conservation, because montane forest is known to be among the most threatened of Ethiopian biomes and there is clearly an urgent need for its herpetofauna to be more thoroughly researched and documented.