Generic revision of <em>Notodasus</em> Fauchald, 1972 (Polychaeta: Capitellidae) with descriptions of four new species from the coasts of Mexico

Abstract

sUMMarY: the capitellid genus Notodasus Fauchald, 1972 is emended and its previously known species are redescribed. since the original descriptions of N. magnus Fauchald, 1972, N. dexterae Fauchald, 1973, and N. arenicola Hartmann-schröder, 1992 omitted important morphological details and were either incomplete or misleading, these species are redescribed based upon examination of type materials. Four new species are described from tropical localities in Mexico: Notodasus harrisae n. sp., N. hartmanae n. sp., N. kristiani n. sp. and N. salazari n. sp. standardised descriptions are provided for all species including the methyl green staining pattern, the epithelial texture and the shape of hooded hooks. a key for all described species is provided.Keywords: polychaetes, capitellids, Notodasus, new species, systematics, Mexico.rEsUMEn: Revisión del géneRo Notodasus Fauchald, 1972 (Polychaeta: caPitellidae) con la descRiPción de cuatRo nuevas esPecies de las costas de México. -se enmienda el género Notodasus Fauchald, 1972 y se redescriben las especies que lo forman. las descripciones originales de N. magnus Fauchald, 1972, N. dexterae Fauchald, 1973 y N. arenicola Hartmannschröder, 1992 o bien eran incompletas o bien incluyen errores, por lo que dichas especies se redescriben en base al material tipo. además, se describen cuatro nuevas especies en base a especimenes recolectados en localidades tropicales de México: Notodasus harrisae n. sp., N. hartmanae n. sp., N. kristiani n. sp. y N. salazari n. sp. se han realizado descripciones estandarizadas para todas las especies, las cuales incluyen el patrón de tinción con verde de metilo, la textura del epitelio y la forma de los ganchos encapuchados. Finalmente, se incluye una clave de todas las especies descritas del género.

Relocation of Dodecaseta McCammon &amp; Stull, 1978 (Annelida, Capitellidae) in Notodasus Fauchald, 1972

“…In the original description of Notodasus , Fauchald (1972) described the genus with the first chaetiger being uniramous. García-Garza et al (2009) reviewed the Notodasus genus based on the examination of type material, and they observed that the holotype N. magnus (type species of the genus) has the first chaetiger biramous, not uniramous as originally described.…”

“… Notodasus kristiani García-Garza et al, 2009: 809–823, figs 5A–D, 8E; García-Garza and de León-González 2011: 17–52; Magalhães and Bailey-Brock 2012: 33, figs 24a–d, 25c–d.…”

“…Holotypes of Dodecaseta oraria McCammon & Stull ( A–D ), and Notodasus kristiani (García-Garza et al, 2009) ( E–G ). A anterior end, lateral view B chaetiger 12-16, dorsolateral view C chaetigers 36-46, ventral view D neurohook from chaetiger 88, lateral view E anterior end, lateral view F chaetigers 9-17, dorsal view G chaetigers 19-27.…”

“…Specimens of the first four lots, all correspond to Notodasus harrisae García-Garza et al, 2009; specimen LACM AHF POLY-N 1284/14884-F2637 correspond to Notodasus oraria new combination; and specimen LACM AHF POLY-N 14905/F2663 correspond to Dasybranchus platyceps Hartman, 1947.…”

“…N. fauchaldi (Green, 2002). N. kristiani (García-Garza et al, 2009), is synonymized under N. oraria . Some comments on Dasybranchus lumbricoides Grube, 1878 are included.…”