Data for selected species
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Since November 2012, this database is updated in CRUSTA database - http://crustiesfroverseas.free.fr/

Decapoda - Brachyura - Dynomenidae - Metadynomene

Metadynomene tanensis aff. (Yokoya, 1933)


Distribution : McLay & Ng (2006: 25) - Metadynomene tanensis is a deep water dynomenid that has been found in the range 205-520 m. Its distribution includes Japan, Taiwan, Indonesia, Vanuatu, New Caledonia, Loyalty and Chesterfield Islands. Therefore the occurrence of M. tanensis in the Philippines is a new record, but it does not extend the geographic range of the species. The Tuamotu specimen in McLay (1999) belongs to a new species, for the time being M. aff. tanensis.

Selected Reference(s)
Metadynomene tanensis. - McLay, C. L., 1999: 521. - French Polynesia
Metadynomene aff. tanensis. - McLay, C. L. and Ng, P. K. L., 2005: 25. [A new species, for the time being refferred to as M. aff. tanensis] - French Polynesia

Regional Data (French Polynesia, Pitcairn, Easter Island, Clipperton)
Distribution & Ecology: Tuamotu (Fangataufa) - Marine; Deep (310m); ?Hard bottom.

Regional Records: Dynomene tanensis - Poupin, 1996a: 97 (Checklist); 1996b: 26, pl. 12f (Fangataufa; 310 m; coll. Frv Marara, fr). - Metadynomene tanensis - McLay, 1999: 521 (Fangataufa; new combination). - Metadynomene aff. tanensis - McLay & Ng, 2005: 25 ("McLay (1999: 522) reported a large male specimen (29.1 x 27.6 mm) from Tuamotu,French Polynesia as being M. tanensis, but it now appears this specimen belongs to a new species. The anterolateral teeth are much smaller than in the present specimens and are arranged differently. We prefer to wait until more specimens, including females, become available before describing it as a new species. Thus the distribution of M. tanensis is now confined to the west Pacific. The Tuamotu specimen should be referred to as Metadynomene aff. tanensis for the time being. Exclusion of this large male makes the maximum size of M. tanensis 23.7 x 21.4 mm for males and 24.8 x 22.4 mm for females.".

Depth distribution: 310 - 310 m

References : compilation of references cited in Poupin (1996, 1998, 2003) and Poupin et al. (2009) - PDF 412 Ko
Since November 2012, this database is updated in CRUSTA database - http://crustiesfroverseas.free.fr/