scholarly journals Catoptrus lavicolus, a new species of swimming crab (Crustacea, Brachyura, Portunidae) from shallow subtidal lava rock field at Sakurajima, an active volcano in Kagoshima, southern Japan

2021 ◽  
Vol 50 (0) ◽  
pp. 107-118
Author(s):  
Tohru Naruse ◽  
Daisuke Uyeno
Keyword(s):  
New Species ◽  
Active Volcano ◽  
Swimming Crab ◽  
Southern Japan ◽  
Shallow Subtidal ◽  
A New Species

Cycloachelous levigatus sp. nov., a new swimming crab (Crustacea: Decapoda: Portunidae) from the South China Sea

Zootaxa ◽  
2021 ◽  
Vol 4970 (2) ◽  
pp. 325-339
Author(s):  
MILAN KOCH
Keyword(s):  
New Species ◽  
South China Sea ◽  
South China ◽  
Molecular Data ◽  
Western Pacific ◽  
Swimming Crab ◽  
Single Male ◽  
Portunid Crab ◽  
A New Species ◽  
Pacific Area

A new species of portunid crab from the genus Cycloachelous Ward, 1942 is described from Vietnamese waters. Cycloachelous levigatus sp. nov. is morphologically most similar to C. orbitosinus (Rathbun, 1911), which was originally described from the syntype series collected from Western Pacific area (Cargados Carajos Islands, Amirante Islands, Seychelles) and C. octodentatus (Gordon, 1938) described from one single male from Singapore. There are differences in the sternal segments, third maxilliped, chela, abdomen and male gonopode shapes. The specific status of C. levigatus sp. nov. is also clearly supported by molecular data. Aside from a comparison of this new species with other known congeners, new photographs of syntypes of C. orbitosinus and the holotype of C. octodentatus are also provided. 

Navigobius asayake, a new species of ptereleotrine goby (Gobioidei: Microdesmidae) from Kagoshima, southern Japan

Zootaxa ◽  
2018 ◽  
Vol 4526 (3) ◽  
pp. 373
Author(s):  
MAKOTO OKAMOTO ◽  
HIROYUKI MOTOMURA
Keyword(s):  
New Species ◽  
Dorsal Fin ◽  
Southern Japan ◽  
Fin Rays ◽  
Eye Diameter ◽  
Yellow Stripe ◽  
Fin Length ◽  
A New Species ◽  
Pectoral Fin Rays ◽  
Pelvic Fin

A new species of ptereleotrine dartfish, Navigobius asayake, is described based on four specimens (45.0–52.1 mm in standard length: SL) collected from off the Satsuma Peninsula and Tanegashima island, Kagoshima, southern Japan. It is distinguished from other congeners by the following combination of characters: second dorsal-fin rays I, 18–19; anal-fin rays I, 19; pectoral-fin rays 21–22; gill rakers 5–6 + 13–15; head length 25.1–26.4% SL; eye diameter 8.6–10.0% SL; pelvic-fin length 15.2–16.1% SL; and a well-developed yellow stripe extending from behind upper part of eye to beneath first dorsal fin. 

A new species of Stegophiura (Ophiuroidea, Ophiopyrgidae) from the mid-Cretaceous of southern Japan

2018 ◽  
Vol 137 (2) ◽  
pp. 319-325
Author(s):  
Yoshiaki Ishida ◽  
Ben Thuy ◽  
Toshihiko Fujita ◽  
Masaru Kadokawa ◽  
Naoki Ikegami ◽  
...  
Keyword(s):  
New Species ◽  
Southern Japan ◽  
A New Species

Turleania rubriguttatus, a new species of pagurid hermit crab (Decapoda: Anomura: Paguroidea) from shallow water in Japan, with notes on T. senticosa (McLaughlin & Haig, 1996)

Zootaxa ◽  
2020 ◽  
Vol 4834 (1) ◽  
pp. 96-106
Author(s):  
TOMOYUKI KOMAI
Keyword(s):  
New Species ◽  
Shallow Water ◽  
Hermit Crab ◽  
Dorsal Surface ◽  
The Philippines ◽  
The Status ◽  
Shallow Subtidal ◽  
The Right ◽  
Kochi Prefecture ◽  
A New Species

A new species of the pagurid hermit crab genus Turleania McLaughlin, 1997, T. rubriguttatus, is described on the basis of two specimens, including one male and one female, from shallow subtidal waters in Kochi Prefecture, Japan. The new species appears close to T. albatrossae (McLaughlin & Haig, 1996), known from the Philippines, but the proximally unarmed dorsal surface of the right chela palm and the lack of a dorsomesial row of spines on the left cheliped carpus easily distinguish T. rubriguttatus n. sp. from T. albatrossae. Examination of the type material of T. similis Komai, 1999 and T. spinimanus Komai, 1999, and supplemental material from Japan, confirms that the two taxa are synonymous with T. senticosa (McLaughlin & Haig, 1996), as was suggested by previous authors. Re-examination clarified that in T. senticosa the maxilliped 3 has no developed arthrobranchs, and this led the author to assess the status of T. sinensis Han, Sha & An, 2016, which is also synonymised with T. senticosa. 

Notes on the Indo-West Pacific shrimp genus Athanopsis Coutière, 1897 (Crustacea, Decapoda, Alpheidae), with the description of a new species associated with echiurans (Annelida, Thalassematidae)

Zootaxa ◽  
2012 ◽  
Vol 3307 (1) ◽  
pp. 48 ◽  
Author(s):  
ARTHUR ANKER
Keyword(s):  
New Species ◽  
Type Species ◽  
Museum Specimen ◽  
West Pacific ◽  
Southern Japan ◽  
The Family ◽  
Colour Patterns ◽  
A New Species ◽  
Immature Specimen ◽  
Alpheid Shrimp

The Indo-West Pacific alpheid shrimp genus Athanopsis Coutière, 1897 is briefly reviewed. Athanopsis platyrhynchusCoutière, 1897, the type species, is reassessed using Coutière’s illustrations and morphological notes scattered throughouthis monograph of the family Alpheidae (Coutière 1899). Athanopsis brevirostris Banner & Banner, 1981, originally de-scribed on the basis of a single immature specimen missing both chelipeds, is reported and illustrated based on fresh ma-terial from Madagascar and southern Japan. Athanopsis gotoi sp. nov. is described based on two fresh specimens fromsouthern Japan, both found associated with thalassematid echiurans, and an additional, older museum specimen from In-donesia. The colour patterns of A. brevirostris, A. gotoi sp. nov., A. saurus Anker, 2011, A. rubricinctuta Berggren, 1991,and A. australis Banner & Banner, 1982, are contrasted to facilitate their identification in the field. A morphology and colour based key to all presently known species of Athanopsis is also provided.

A new species of the mesopelagic isopod genus Xenuraega Tattersall, 1909 (Crustacea: Isopoda: Aegidae) from Japan, the second species in the genus

Zootaxa ◽  
2019 ◽  
Vol 4683 (3) ◽  
pp. 431-438
Author(s):  
MICHITAKA SHIMOMURA ◽  
NIEL L. BRUCE
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
North Atlantic ◽  
Type Locality ◽  
Single Specimen ◽  
Southern Japan ◽  
Kagoshima Prefecture ◽  
Northern Pacific ◽  
A New Species

Xenuraega bythionekta sp. nov., is described from a single specimen taken off southern Japan. It is the second species of Xenuraega Tattersall, 1909, and extends the known range of the genus from North Atlantic to the northern Pacific Ocean. The species is characterized by the posteriorly narrowed pleotelson, and both uropodal rami being elongate and provided with a mass of long plumose setae. Xenuraega bythionekta sp. nov. is known only from the type locality, Kagoshima Prefecture, southern Japan at a depth of 1178–1179 m. 

scholarly journals Olindias deigo sp. nov., a new species (Hydrozoa, Trachylinae, Limnomedusae) from the Ryukyu Archipelago, southern Japan

ZooKeys ◽  
2019 ◽  
Vol 900 ◽  
pp. 1-21
Author(s):  
Sho Toshino ◽  
Miyako Tanimoto ◽  
Ryo Minemizu
Keyword(s):  
Life History ◽  
New Species ◽  
Ryukyu Archipelago ◽  
Diagnostic Characters ◽  
Southern Japan ◽  
A New Species

A new hydromedusa belonging to the order Limnomedusae is reported from the Ryukyu Archipelago, southern Japan. Olindias deigosp. nov. can be distinguished from other Olindiidae species by the number and color of tentacles. Mature medusae of O. deigosp. nov. were collected to observe the life history, including polyp (hydroid) and medusa formation. A comparative table of the primary diagnostic characters of the genus is provided.

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