TY  - GEN
A1  - Fend, Steven V.
A1  - Rodriguez, Pilar
A1  - Achurra, Ainara
A1  - Erséus, Christer
T1  - On Kincaidiana Altman, 1936 and Guestphalinus Michaelsen, 1933 (Annelida, Clitellata, Lumbriculidae), with the descriptions of three new species
T2  - European journal of taxonomy : 361
N2  - Two formerly monotypic lumbriculid genera, Guestphalinus Michaelsen, 1933 and Kincaidiana Altman, 1936, are reviewed using morphological and molecular data, following the discovery of new northwestern, Nearctic species. Several populations of Kincaidiana hexatheca Altman, 1936 were examined, and both morphology and DNA data suggest a single, variable species in Pacific drainages extending from northern California through Washington, USA. Specimens of Kincaidiana from the Smith River drainage with a single, median atrium and differing genetically from K. hexatheca are assigned to K. smithi sp. nov. The chaetal morphology of North American Guestphalinus populations is variable, and two basic morphotypes are assigned to G. elephantinus sp. nov. and G. exilis sp. nov. This decision is supported by molecular data. The tree topology, based on the mitochondrial 16S rRNA and Cytochrome Oxidase I (COI), and the nuclear 28S rRNA gene sequences, confirmed the close phylogenetic relationships among the Nearctic Guestphalinus, Kincaidiana and Uktena Fend, Rodriguez & Lenat, 2015. Probable synapomorphies associating these genera include a filiform, ringed proboscis, a forward shift of reproductive organs relative to the usual position in the family, and spermathecae in the atrial segment.
T3  - European journal of taxonomy  : EJT - 361 
KW  - taxonomy
KW  - new taxa
KW  - Clitellata
KW  - Lumbriculidae
KW  - Kincaidiana
KW  - Guestphalinus
Y1  - 2017
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/46210
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-462108
SN  - 2118-9773
PB  - Muséum National d'Histoire Naturelle
CY  - Paris
ER  -