Gymnodoris nigricolor Baba, 1960
publication ID |
https://dx.doi.org/10.3897/zookeys.1042.64474 |
publication LSID |
lsid:zoobank.org:pub:9CF986D8-6A47-4E17-9A67-245C78FB8AFD |
persistent identifier |
https://treatment.plazi.org/id/1DD747CC-E471-5907-8544-84BAF26E4ADE |
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scientific name |
Gymnodoris nigricolor Baba, 1960 |
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* Gymnodoris nigricolor Baba, 1960 View in CoL Figure 16B View Figure 16
Material examined.
Two specimens 5-7 mm, SN.
Ecology.
Recorded exclusively from deeper soft sediment habitats, crawling on the substrate. Depth 19-27 m.
Distribution.
Gymnodoris nigricolor is known from the Philippines, Japan, New Caledonia, and the Solomon Islands ( Gosliner et al. 2008). Here recorded as a first for Thai waters.
Remarks.
The present species closely resembles externally the description by Baba (1960) possessing a black (sometimes translucent black) dorsum and rhinophores, and a translucent foot. The gills match the description in being black, small, and club-shaped and arranged in a semi-circle. It should also be noted that the plate supplementing the original description of the species shows gills in a circular arrangement and seemingly plumose rather than reduced and club shaped. While the species is known to be parasite of gobies ( Osumi and Yamasu 1994), all observations from Koh Tao were not in the vicinity of any demersal fish, including any in the family Gobiidae . Ongoing searches of gobies from both soft sediment and coral reef habitats have thus far revealed no observations of parasitic nudibranchs.
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