First record of Baseodiscus mexicanus (Bürger, 1893) (Nemertea: Heteronemertea) from Japanese waters

By

Kajihara, Hiroshi
Yoshida, Ryuta
Uyeno, Daisuke

Type

Article

Date of Publication

2012-8-1

Original Publication

Check list : journal of species lists and distribution

Volume

8

Series / Issue

Issue: 4

Pages

754--755

Contributed by

Pensoft Publishers

Language

English

Published by

[São Paulo, Brazil] Luís Felipe Toledo 2005-

Identifiers

DOI: https://doi.org/10.15560/8.4.754

 

Abstract

The heteronemertean Baseodiscus mexicanus (Bürger, 1893) was previously known exclusively from the eastern Pacific, except for fragmentary records from Palau and Indonesia, which suggested a possible amphi-Pacific tropical distribution. A single specimen of B. mexicanus collected in Okinawa, Japan, represents the first record of this species from Japanese waters and provides additional evidence for the occurrence of the species in the western Pacific. Baseodiscus mexicanus is strikingly similar in appearance to a sympatric moray eel, Gymnomuraena zebra (Shaw, 1797) (Actinopterygii: Anguilliformes: Muraenidae), possibly indicating a relationship of mimicry between them.