Designation of a neotype and redescription ofHesione reticulatavon Marenzeller, 1879 from Japan (Annelida, Hesionidae).
The hesionid polychaeteHesione reticulatavon Marenzeller, 1879 was described from Enoshima Island, Japan and has been recorded also from the Red Sea. Depending on researchers, it has been regarded as either a distinct species or synonymous with older established ones. The type specimen has been lost. In order to clarify its taxonomic status,Hesione reticulatais herein redescribed, illustrated, and a neotype is proposed based on recent material collected near the type locality. The diagnostic features include the presence of several dorsal, discontinuous longitudinal bands, interrupted by pale segmental spots; prostomium with tiny antennae; a tuberculated dorsal integument; acicular lobes double; and neurochaetal blades with guards approaching the distal tooth. The dorsal color pattern in life enables a clear distinction from similar species such asHesione intertextaGrube, 1878 amongst others. Mitochondrial COI barcoding sequences are deposited in the DNA Data Bank of Japan. A key toHesionespecies from Japan is also included.
Department of Natural History Sciences, Graduate School of Science, Hokkaido University, N10 W8, Sapporo 0060-0810, Japan.
Naoto
N
Jimi
El Colegio de la Frontera Sur, Depto. Sistemática y Ecología Acuática, Chetumal, México.
Sergio I
SI
Salazar-Vallejo
Department of Natural History Sciences, Graduate School of Science, Hokkaido University, N10 W8, Sapporo 0060-0810, Japan.
Hiroshi
H
Kajihara
Neurochaetal blades; parapodial features; pigmentation pattern; polychaetes; taxonomy