WoRMS source details
Akiyama, T. 2011. The cumacean Dimorphostylis elegans Gamo, 1960 (Crustacea), D. bathyelegans n. sp. and D. brevicarpus n. sp. from Japan. Zootaxa 2994: 45–59
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Akiyama, T.
2011
The cumacean Dimorphostylis elegans Gamo, 1960 (Crustacea), D. bathyelegans n. sp. and D. brevicarpus n. sp. from Japan
Zootaxa
45-59
Publication
Dimorphostylis elegans Gamô, 1960 and two related new species, D. bathyelegans n. sp. and D. brevicarpus n. sp. are
described. Dimorphostylis elegans were collected from the Pacific coasts of Honshu and Shikoku Islands, and the East
China Sea, Japan, 74–443 m. As a result, D. latifrons Harada, 1960 from the Izu Peninsula, Japan is declared a junior synonym
of D. elegans. Morphological variation of the carapace is discussed. Dimorphostylis bathyelegans, from southern
coast of the Honshu Island and the East China Sea, is very similar to D. elegans, but is distinguished from the latter by the
long telson and the third peduncle article of antenna 1 with more short setae. Depth of the habitat ranges from 495–918
m, which is the deepest known species in the genus. Dimorphostylis brevicarpus was collected from Kyushu and Nansei
Islands, East China Sea, on sandy bottoms, 165–236 m deep. This species also resembles D. elegans, but is distinguished
from the latter by (1) short carpus of pereopods 3–5, (2) anterior end of dorsolateral carina with 2 or 3 teeth, and (3) maxilliped
1 with a group of sharp spines on the ventral surface of basis, and (4) carapace covered with numerous small pits,
with a tiny seta in each.
Japan
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Dimorphostylis bathyelegans Akiyama, 2011 (original description)
Dimorphostylis brevicarpus Akiyama, 2011 (original description)
Dimorphostylis brevicarpus Akiyama, 2011 (original description)