Journal of the Marine Biological Association of the United Kingdom

Research Article

Description of two new phanerobranch nembrothid species (Nudibranchia: Polyceridae: Doridacea)

M.  Pola a1c1, J.L.  Cervera a1 and T.M.  Gosliner a2
a1 Departamento de Biología, Facultad de Ciencias del Mar y Ambientales, Universidad de Cádiz, Apartado de Correos 40, 11510 Puerto Real, Cádiz, Spain
a2 Department of Invertebrate Zoology and Geology, California Academy of Sciences, 875 Howard Street, San Francisco, CA 94103, USA

Article author query
pola m   [PubMed][Google Scholar] 
cervera jl   [PubMed][Google Scholar] 
gosliner tm   [PubMed][Google Scholar] 


Two new species of dorid nudibranchs of the genus Tambja are described from the Indo-Pacific and the temperate waters of the western Atlantic. Tambja haidari sp. nov. is only known from the type locality in Senegal. This species has dark blue ground colour with yellow bands and sky-blue spots, which become real tubercles along the tail. The internal features are typical of species of the genus, with rachidian teeth that lack denticles and with a prostate slightly differentiated from the rest of the vas deferens. Tambja blacki sp. nov., from Papua New Guinea and eastern Australia, has yellow-green or green colour with black blotches. There are two large blotches on the head continuing from the inner side of the base of the rhinophores towards the rear. The notal margin is elevated and joins behind the gill in a well-developed hump. The reproductive system of this species is very characteristic because it has some features more typical of species of Nembrotha than of Tambja (i.e. vaginal gland absent, prostate spread over the bursa copulatrix and wide and elongate vagina). These descriptions bring the number of species of Tambja found around the world to 31.

(Received October 5 2005)
(Accepted January 11 2006)