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A new species of Ophioconis (Echinodermata: Ophiuroidea) from Ryukyu Islands, southwestern Japan.
- Source :
-
Proceedings of the Biological Society of Washington . Jan2018, Vol. 131 Issue 1, p163-174. 12p. - Publication Year :
- 2018
-
Abstract
- Ophioconis claviculata sp. nov. is described on the basis of three specimens collected from Ryukyu Islands, southwestern, Japan. The new species is distinct in having: disc covered by granules; four, sometimes five flat, polygonal oral papillae on each side of jaw; broad and flat teeth with hyaline distal end; spiniform and conical arm spines, two times longer than the corresponding arm segment at the maximum length; oralmost arm spines on proximal portion of arms flattened and clavate; four tentacle scales on third tentacle pore; and ventral arm plate longer than wide, with concentrate lamellar striations. The new species was found under rocks of open water as well as in a dark and medium to low salinity (28 ppt) environment of submarine cave, suggesting that this species tolerate this specific condition. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ECHINODERMATA
*OPHIUROIDEA
*HYALINE membrane disease
*TAXONOMY
Subjects
Details
- Language :
- English
- ISSN :
- 0006324X
- Volume :
- 131
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Proceedings of the Biological Society of Washington
- Publication Type :
- Academic Journal
- Accession number :
- 148867483
- Full Text :
- https://doi.org/10.2988/18-00001