Thelepus Leuckart, 1849,

Carrerette, Orlemir, Nogueira, João Miguel De Matos & Hutchings, Pat, 2017, The genus Thelepus Leuckart, 1849 (Annelida, Thelepodidae) in Brazil, with a redescription of the holotype of T. setosus (Quatrefages, 1866), Zootaxa 4250 (6), pp. 587-599: 588

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Thelepus Leuckart, 1849


Genus Thelepus Leuckart, 1849 

Type-species. Thelepus bergmanni Leuckart, 1849  , by original designation.

Remarks. Thelepus  is a well-known genus of Thelepodidae, with 48 known species (Hutchings et al. in press; Hsueh & Li 2016) including the two new species herein described. Recent definitions of this genus were provided by Hutchings et al. (2015, in press). The genus differs from Pseudostreblosoma Hutchings & Murray, 1984  and Streblosoma Sars, 1872  by having notopodia from segment 3, instead of segment 2, and from Euthelepus McIntosh, 1885  and Pseudothelepus Hutchings, 1997  1 in not having lobes on anterior segments, except for the ventral lobe on segment 1, below the mouth.

Thelepus setosus  is the only species of this genus previously recorded from the Brazilian coast, although some authors preferred to identify the specimens as T. cf. setosus  , as commented above. In order to reveal the differences between the holotype of T. setosus  and the Brazilian specimens, a redescription of the former species is provided herein, and the Brazilian specimens are described as two new species.