Sondersammelgebiets-Volltexte
Refine
Year of publication
- 2021 (92) (remove)
Document Type
- Article (92) (remove)
Has Fulltext
- yes (92)
Is part of the Bibliography
- no (92) (remove)
Keywords
- taxonomy (92) (remove)
Two novel species of Russula (Russulaceae, Russulales), R. coronaspora Y.Song sp. nov. and R. minor Y.Song sp. nov. belonging to subgenus Russula crown clade, are described based on both morphological and phylogenetic evidence. In morphology, R. coronaspora sp. nov. is mainly characterized by its distinct spores ornamented with sparse, cylindrical and isolated spines, which resemble coronavirus, and gelatinized pileipellis with pileocystidia mostly septate and sometimes branched; R. minor sp. nov. possesses a very small basidiocarp with pileus less than 2.5 cm in diameter., small basidia, easily peeling and gelatinized pileipellis with slender terminal cells and abundant SV+ pileocystidia. Positions of the two new species in both phylogenetic trees based on ITS and 5-locus sequences (nLSU, mtSSU, rpb1, rpb2 and tef1) confirm their distinct taxonomic status.
A comprehensive survey of several lakes in the Tuva Republic of Russia yielded, besides the ubiquitous Gammarus lacustris, the discovery of a small freshwater, lacustrine amphipod not previously recorded in this area. A comparative study of the Tore-Khol Lake gammarid population, probably conspecific with Gammarus koshovi (Bazikalova, 1946) originating from Khubsugul Lake, was conducted. The species, G. koshovi, is characterized by a specific habitus: a small-sized compact body, all limbs shortened, carpi of pereopods (PIII and PIV) reduced, coxal plates broad, and pereopod dactyli sturdy. It has been suggested that juveniles of the euryoecious G. lacustris or other large species could be confused with the relatively small G. koshovi. Consequently, we decided to present the distribution of gammarid species throughout south Siberia and Mongolia, referring to the sequences of works primarily by Soviet authors, which may be hard to access by international readers. We discuss affinity with related groups, distribution, and ecology of G. koshovi to better understand their evolution. Additionally, the zoobenthic species diversity of widely represented groups in the ecosystems of Tore-Khol Lake is briefly reviewed. An identification key for the Siberian Gammarus with 10 species is provided.
Four new Colombian species of the spider genus Medionops Sánchez-Ruiz & Brescovit, 2017 are described and illustrated: M. carolinae sp. nov. (male and female) from Boyacá department, M. cauca sp. nov. (male) from Cauca department, M. luiscarlosi sp. nov. (male and female) from Caldas department and M. santarosa sp. nov. (male) from Risaralda department. Additionally, the distribution of the type species of M. blades Sánchez-Ruiz & Brescovit, 2017, previously known only from Bogotá, Cundinamarca department, is extended to several localities in the Boyacá department. An updated identification key for all Medionops species is provided.
The taxonomy of cyclostome bryozoans is founded on characters of the skeleton, but molecular sequence data have increasingly shown that established higher taxa are not monophyletic. Here we describe the skeletal morphology of a new species from Guadeloupe (French West Indies) with erect ramose colonies consisting of long, curved zooids that are typical of the suborder Cerioporina among living cyclostomes. However, molecular evidence from nuclear ribosomal RNA genes 18S and 28S places the new taxon in the suborder Rectangulata, where this colony-form has not been previously recorded. It nests firmly within the genus Disporella Gray, 1848, in a strongly supported clade that also includes Plagioecia patina (Lamarck, 1816) (Tubuliporina) and the sister taxa Doliocoitis cyanea Gordon & Taylor, 2001 (Rectangulata) and Favosipora rosea Gordon & Taylor, 2001 (Cerioporina). The short and robust branches of the new Guadeloupe cyclostome, here named Disporella guada Harmelin, Taylor & Waeschenbach sp. nov., are well adapted to life in shallow rocky sites exposed to severe wave action, which appear to be its exclusive habitat.
The whip spider family Charinidae Quintero, 1986 is the most speciose and widely distributed in the arachnid order Amblypygi Thorell, 1883. It comprises three genera and 95 species distributed across all tropical continents and the eastern Mediterranean. Despite recent advances in the taxonomy of the family, a global revision of all its species, necessary to advance understanding of its systematics, biogeography and evolution, has never been conducted. In the present contribution, the family is revised in its entirety for the first time, including all previous names and 33 new species, 24 in the genus Charinus Simon, 1892: C. alagoanus sp. nov., C. apiaca sp. nov., C. carinae sp. nov., C. carioca sp. nov., C. carvalhoi sp. nov., C. cearensis sp. nov., C. diamantinus sp. nov., C. euclidesi sp. nov., C. goitaca sp. nov., C. guayaquil sp. nov., C. imperialis sp. nov., C. loko sp. nov., C. magalhaesi sp. nov., C. miskito sp. nov., C. mocoa sp. nov., C. monasticus sp. nov., C. palikur sp. nov., C. perquerens sp. nov., C. puri sp. nov., C. renneri sp. nov., C. sooretama sp. nov., C. souzai sp. nov., C. susuwa sp. nov., C. una sp. nov.; eight in the genus Sarax Simon, 1892: S. bilua sp. nov., S. dunni sp. nov., S. gravelyi sp. nov., S. indochinensis sp. nov., S. lembeh sp. nov., S. palau sp. nov., S. rahmadii sp. nov., S. tiomanensis sp. nov.; and one in the genus Weygoldtia Miranda et al., 2018: W. consonensis sp. nov. Taxonomic keys to the 132 species (excluding four nomina dubia) are presented and several taxonomic rearrangements implemented. Four subspecies are elevated to species level: Charinus cavernicolus Weygoldt, 2006, C. elegans Weygoldt, 2006, C. longipes Weygoldt, 2006, and Sarax bispinosus (Nair, 1934). Sarax batuensis Roewer, 1962 is removed from synonymy with Sarax buxtoni (Gravely, 1915) and S. buxtoni newly synonymized with Sarax rimosus (Simon, 1901). Stygophrynus moultoni Gravely, 1915 is transferred to Sarax, resulting in Sarax moultoni (Gravely, 1915) comb. nov. Ten species are transferred from Charinus to Sarax, resulting in new combinations: S. abbatei (Delle Cave, 1986) comb. nov., S. bengalensis (Gravely, 1911) comb. nov., S. dhofarensis (Weygoldt, Pohl & Polak, 2002) comb. nov., S. ioanniticus (Kritscher, 1959) comb. nov., S. israelensis (Miranda et al., 2016) comb. nov., S. omanensis (Delle Cave, Gardner & Weygoldt, 2009) comb. nov., S. pakistanus (Weygoldt, 2005) comb. nov., S. seychellarum (Kraepelin, 1898) comb. nov., S. socotranus (Weygoldt, Pohl & Polak, 2002) comb. nov. and S. stygochthobius (Weygoldt & Van Damme, 2004) comb. nov.
The pharciceratid ammonoids from the Roteisenstein Formation of Dillenburg (Cephalopoda, Ammonoidea)
(2021)
The ammonoids of the suborder Pharciceratina from the Red Ironstone Formation of the area around Dillenburg (eastern Rhenish Mountains) are revised, mainly based on historical collections stored in the Museum für Naturkunde, Berlin. The genus Evopharciceras gen. nov. and the following species are newly described: Maenioceras ornatum sp. nov., Pharciceras beyrichi sp. nov., Pharciceras kruegeri sp. nov., Pharciceras ferrum sp. nov., Evopharciceras formosum gen. et sp. nov., Extropharciceras metallicum sp. nov., Lunupharciceras kochi sp. nov., Stenopharciceras lotzi sp. nov., Pluripharciceras ahlburgi sp. nov. and Sandbergeroceras archiaci sp. nov. Neotypes are proposed for the species Extropharciceras becheri (von Buch, 1832) and Sandbergeroceras costatum (d’Archiac & de Verneuil, 1842). The stratigraphic distribution of the genera is discussed; they are assigned to three assemblages: (1) Maenioceras terebratum Zone (early Givetian; two species), (2) Pseudoprobeloceras pernai Zone (latest Givetian; fifteen species) and (3) Sandbergeroceras costatum Zone (early Frasnian; three species).
For each of the 534 species of the millipede order Chordeumatida known from Europe, available information on taxonomy, distribution and habitat is summarized, and the distribution in 50 × 50 km UTM/MGRS squares is shown on a map. Comparisons between Chordeumatida and the equally-sized order Julida are made with respect to distribution patterns and history of exploration.
Grasstrees (Xanthorrhoea) are a group of monocotyledonous plants endemic to Australia, with a characteristic crown of long and narrow leaves. In the present study, the grasstree-associated weevils of the genus Paratranes Zimmerman, 1994 are reviewed and two species are recognised: P. monopticus (Pascoe, 1870) and P. zimmermani sp. nov. A lectotype for Tranes xanthorrhoeae Lea, 1898, which was recently synonymised with P. monopticus, is herein designated, and the validity of this synonymy is confirmed. Descriptions and diagnoses of the species are supplemented with photographs of their habitus and salient structures as well as a map of their distributions.
Two new species of the genus Eponisiella Emeljanov, 1984 are described and illustrated from China (Guizhou and Shandong Provinces). These are E. dafangensis sp. nov. and E. shandongensis sp. nov., giving the genus eight species in total. A key to the species of Eponisiella is provided as well as a map of their geographic distribution, which is briefly discussed.
Ophiuroidea is the largest class among extant echinoderms, with over 2000 described species assigned to 33 families. Here, the first identification key to the recently revised classification was developed, and revised morphological descriptions were derived from it, expanding the previous short diagnoses. The key was built by analyzing internal and external skeletal characters of predominantly the type species of each family, including at least two mutually exclusive attributes per family. Various numeric and multistate characters were used to create a traditional as well as an interactive key using the DELTA and Xper software programs. Illustrations (SEM and digital photos) are included in the key to facilitate the assessment of character states by users. Not only is it the first identification key to the families, according to the recently proposed new classification and the examined species, but this interactive key also assists users in understanding the family level taxonomy of brittle stars. The interactive key allows new characters and states to be added, when more species will have been analyzed, without the need to reconfigure the complete key (as may be necessary with conventional keys).