scholarly journals Bidenichthys okamotoi, a New Species of the Bythitidae (Ophidiiformes, Teleostei) from the Koko Seamount, Central North Pacific

2021 ◽  
Vol 9 (12) ◽  
pp. 1399
Author(s):  
Peter R. Møller ◽  
Werner W. Schwarzhans ◽  
Henrik Lauridsen ◽  
Jørgen G. Nielsen
Keyword(s):  
Computed Tomography ◽  
New Species ◽  
New Zealand ◽  
Ct Scan ◽  
North Pacific ◽  
Seamount Chain ◽  
A New Species ◽  
Central North Pacific ◽  
Emperor Seamount Chain

Two specimens from the Koko Seamount (Koko Guyot), in the Hawaiian-Emperor seamount chain, Central North Pacific, caught in 2009 and 2010 are here described as a new species, Bidenichthys okamotoi. The taxonomy of the species in the genera Bidenichthys Barnard, 1934, and Fiordichthys Paulin, 1995, has been confusing due to the lost type of B. consorbrinus (Hutton, 1876) and the rarity of some of the species. Following the synonymization of Fiordichthys Paulin, 1995, with Bidenichthys by Møller and Nielsen 2015 and of Bidenichthys beeblebroxi Paulin, 1995, with Bidenichthys consobrinus Hutton, 1876, the genus Bidenichthys now comprises five species: B. capensis, B. consobrinus, B. okamotoi, B. paxtoni and B. slartibartfasti. Bidenichthys okamotoi differs from its congeners in, e.g., the fewer precaudal vertebrae (12 vs. 13), more palatine teeth rows (4–6 vs. 2–3), shorter pelvic fins (12.1–13.4% vs. 14.4–21.0% SL), max size (187 vs. 147 mm SL) and the shape of the sulcus of the otolith. We here present an updated diagnosis of the genus. A computed tomography (CT) scan of the holotype of B. okamotoi provides for additional anatomical details. The disjunctive occurrence of Bidenichthys okamotoi on the Emperor Seamount chain about 7500 km from the nearest congeneric taxon in New Zealand is discussed. The fossil otolith-based record of the genus Bidenichthys and its systematic implications is briefly discussed.

Etmopterus lailae sp. nov., a new lanternshark (Squaliformes: Etmopteridae) from the Northwestern Hawaiian Islands

Zootaxa ◽  
2017 ◽  
Vol 4237 (2) ◽  
pp. 371 ◽  
Author(s):  
DAVID A. EBERT ◽  
YANNIS P. PAPASTAMATIOU ◽  
STEPHEN M. KAJIURA ◽  
BRADLEY M. WETHERBEE
Keyword(s):  
New Species ◽  
North Pacific ◽  
North Pacific Ocean ◽  
Hawaiian Islands ◽  
Key To Species ◽  
Spiral Valve ◽  
Meristic Counts ◽  
Northwestern Hawaiian Islands ◽  
A New Species ◽  
Central North Pacific

A new species of lanternshark, Etmopterus lailae (Squaliformes: Etmopteridae), is described from the Northwestern Hawaiian Islands, in the central North Pacific Ocean. The new species resembles other members of the “Etmopterus lucifer” clade in having linear rows of dermal denticles, and most closely resembles E. lucifer from Japan. The new species occurs along insular slopes around seamounts at depths between 314–384 m. It can be distinguished from other members of the E. lucifer clade by a combination of characteristics, including a longer anterior flank marking branch, arrangement of dermal denticles on the ventral snout surface and body, flank and caudal markings, and meristic counts including number of spiral valve turns, and precaudal vertebrate. A key to species of the Etmopterus lucifer-clade is included. 

A new species of the greeneye genus Chlorophthalmus (Teleostei: Chlorophthalmidae) from the central North Pacific

Zootaxa ◽  
2019 ◽  
Vol 4555 (3) ◽  
pp. 396
Author(s):  
KYOJI FUJIWARA ◽  
HIDETOSHI WADA ◽  
HIROYUKI MOTOMURA
Keyword(s):  
New Species ◽  
Lateral Line ◽  
North Pacific ◽  
Pectoral Fin ◽  
Dorsal Fin ◽  
Lower Jaw ◽  
Fin Ray ◽  
Seamount Chain ◽  
Fin Length ◽  
Central North Pacific

Chlorophthalmus imperator sp. nov. (Teleostei: Chlorophthalmidae) is described on the basis of nine specimens (98.1–174.8 mm SL) from the Emperor Seamount Chain in the central North Pacific. The new species is characterized by the following combination of characters: 49–51 lateral-line scales; 6 scale rows above lateral line; 3 + 19–22 = 22–25 (modally 22) gill rakers; outermost tooth patches of lower jaw with 6–14 large thorn-shaped teeth, the tips projecting in advance of lower-jaw profile; lower-jaw symphysis with two distinct moderately-sized projections; tongue without teeth; pelvic-fin origin vertically below 4th or 5th (usually 5th) dorsal-fin ray base; head length 26.7–28.9 (mean 27.7) % SL; snout length 6.9–7.7 (7.3) % SL; horizontal orbit diameter 11.9–12.9 (12.3) % SL; upper-jaw length 11.7–13.2 (12.6) % SL; maxillary depth 3.1–3.8 (3.4) % SL; pre-dorsal-fin length 34.2–36.6 (35.3) % SL; pre-pectoral-fin length 27.3–29.8 (27.9) % SL; anus to anal-fin origin length 27.3–29.9 (28.5) % SL; pectoral-fin length 21.0–24.9 (22.7) % SL. 

Cirrhigaleus australis n. sp., a new Mandarin dogfish (Squaliformes: Squalidae) from the south-west Pacific

Zootaxa ◽  
2007 ◽  
Vol 1560 (1) ◽  
pp. 19-30 ◽  
Author(s):  
WILLIAM T. WHITE ◽  
PETER R. LAST ◽  
JOHN D. STEVENS
Keyword(s):  
New Species ◽  
New Zealand ◽  
North Pacific ◽  
Western North Pacific ◽  
Pectoral Fins ◽  
Southeastern Australia ◽  
South West ◽  
Eastern Australia ◽  
The Family ◽  
A New Species

A new species of Mandarin dogfish, Cirrhigaleus australis n. sp., is described based on specimens from southeastern Australia. Australian populations were previously considered to be conspecific with Cirrhigaleus barbifer from the western North Pacific and Indonesia, but recent investigations revealed that the two forms differ in morphology and in the structure of the CO1 gene. Cirrhigaleus australis has a smaller eye, shorter dorsal-caudal space, and smaller pectoral fins and dorsal fins and spines. These species are clearly separable from the only other congener, C. asper, and all other members of the family Squalidae, by the possession of a greatly produced barbel on their anterior nasal flap. The new species occurs in temperate waters of eastern Australia, and possibly New Zealand.

scholarly journals Heterophryxus pacificus, a new species of dajid isopod from the central North Pacific

2016 ◽  
Vol 45 (0) ◽  
pp. 29-35 ◽  
Author(s):  
Hiroyuki Ariyama ◽  
Nobuhiro Saito ◽  
Michitaka Shimomura
Keyword(s):  
New Species ◽  
North Pacific ◽  
A New Species ◽  
Central North Pacific

A new species of Calliostoma (Vetigastropoda: Calliostomatidae) from Canopus Bank, off northeastern Brazil

Zootaxa ◽  
2018 ◽  
Vol 4457 (1) ◽  
pp. 156
Author(s):  
DANIEL C. CAVALLARI ◽  
LUIZ R.L. SIMONE
Keyword(s):  
Computed Tomography ◽  
New Species ◽  
Ct Scan ◽  
Shell Morphology ◽  
Northeastern Brazil ◽  
Similar Species ◽  
Southwestern Atlantic ◽  
Micro Computed Tomography ◽  
A New Species

In the present study, Calliostoma melliferum sp. nov. is described from Canopus Bank, a seamount located ~190 km off Fortaleza, Ceará, northeastern Brazil, at depths of 60–260 m. Shell morphology and anatomy of the soft parts are analyzed in detail with the aid of SEM and micro-computed tomography (CT-Scan) techniques. We take the opportunity to provide thorough conchological and anatomical comparisons with similar species from the Southwestern Atlantic.

Ahnea, a new genus from New Zealand (Coleoptera: Staphylinidae: Pselaphinae), with description of a new species

2014 ◽  
Vol 147 (4) ◽  
pp. 381-389 ◽  
Author(s):  
Jong-Seok Park ◽  
Christopher E. Carlton
Keyword(s):  
New Species ◽  
New Zealand ◽  
New Genus ◽  
Key To Species ◽  
Diagnostic Characters ◽  
Distribution Maps ◽  
Line Drawings ◽  
A New Species

AbstractAhnea keejeongi Park and Carlton (Coleoptera: Staphylinidae: Pselaphinae), a new genus and new species of New Zealand endemic beetle belonging to the supertribe Faronitae is described. Six previously described species are included to this genus and four species are synonymised as follow: Sagola dissonans Broun, 1921 and S. planicula Broun, 1921 under Ahnea ventralis (Broun, 1912); S. carinata Broun, 1912 and S. lineiceps Broun, 1921 under Ahnea lineata (Broun, 1893). A key to species, habitus photographs, line drawings of diagnostic characters, and distribution maps are provided.

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