In:
ZooKeys, Pensoft Publishers, Vol. 1123 ( 2022-10-04), p. 99-122
Abstract:
Five specimens of Ophiuroidea from deep-sea seamounts in the West Pacific were collected and identified as two species, Astrodia duospina sp. nov. and Astrodia abyssicola . The new species, Astrodia duospina sp. nov. , can be distinguished from its congeners by having indistinct or underdeveloped oral papillae, relatively short genital slits, crescent-shaped lateral arm plates, and plate-shaped external ossicles on the aboral surface of the disc. One specimen was identified as Astrodia abyssicola , which has been reported in the north-western Pacific and the north-eastern coast of Japan. The most recent tabular key of Astrodia was revised with two more key characteristics added, the shape and presence of oral papillae and the number of arm spines. The phylogenetic relationship of Astrodia and Asteronyx was analyzed based on 16S and COI sequences. The discovery of the two species further expanded the geographical distribution of the genus Astrodia .
Type of Medium:
Online Resource
ISSN:
1313-2970
,
1313-2989
DOI:
10.3897/zookeys.1123.87397
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10.3897/zookeys.1123.87397.figure9
DOI:
10.3897/zookeys.1123.87397.suppl1
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10.3897/zookeys.1123.87397.suppl2
DOI:
10.3897/zookeys.1123.87397.suppl3
Language:
Unknown
Publisher:
Pensoft Publishers
Publication Date:
2022
detail.hit.zdb_id:
2445640-8
SSG:
12
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