scholarly journals A new species of Gymnelus (Perciformes, Zoarcidae) from Greenland, similar to G. viridis

2021 ◽  
Vol 325 (1) ◽  
pp. 34-48
Author(s):  
N.V. Chernova ◽  
P.R. Møller
Keyword(s):  
New Species ◽  
North Pacific Ocean ◽  
Original Description ◽  
The Body ◽  
The Arctic ◽  
West Greenland ◽  
Pectoral Fins ◽  
Dorsal Fin ◽  
South West ◽  
A New Species

Zoarcid fishes of the genus Gymnelus Reinhardt inhabit the shelves of the North Pacific Ocean and the Arctic. A new species, G. pseudosquamatus sp. nov., is described from trawl samples taken at depths off South-West Greenland. It is most similar to the type species of the genus, Common Fish Doctor G. viridis, inhabiting the coastal waters of Greenland. The characters of the latter are specified on materials from the type locality, including the neotype and specimens of J.C.H. Reinhardt. Both species are in the group of Gymnelus with an interrupted supratemporal commissura, two supratemporal sensory pores (1+0+1), and a dorsal fin originating above the pectoral fin. The two species differ in a complex of characters, including habitus. In G. viridis, the trunk is roundish in cross section, highest above the beginning of the anal fin; the anterior rays of the dorsal fin are shortened, and covered with a thick and somewhat fleshy skin. In G. pseudosquamatus, the body is compressed and deeper anteriorly, the dorsal-fin rays are evenly elongated, and the fin membrane is thin. Differences in counts and measurements are statistically significant, including the number of vertebrae and rays in the dorsal, anal and pectoral fins, the number of teeth on the jaws, as well as the length and depth of the head, predorsal length, the length of pectoral fins, eye diameter and length of the gill slit. The color of G. pseudosquamatus, with 8–16 wide brown mottled bands, is also unusual, as the skin is dotted with light speckles that create the illusion of tiny scales, which is the reason for the name “pseudosquamatus”, the Deceptive Fish Doctor. While G. viridis is found inshore in a zone of macroalgae, the new species is found in deeper waters (100–457 m) along the shelf edge of South-West Greenland. The name Ophidium stigma Lay et Bennett, 1839 (=Gymnelus stigma) should be excluded from the synonymy of G. viridis, since the original description mentions the presence of scales on the body, which are absent in Gymnelus.

Gaidropsarus mauli a new species of three-bearded rockling (Gadiformes, Gadidae) from the Lucky Strike hydrothermal vent field (Mid-Atlantic Ridge) and the Biscay Slope (Northeastern Atlantic)

Zootaxa ◽  
2018 ◽  
Vol 4459 (2) ◽  
pp. 301
Author(s):  
MANUEL BISCOITO ◽  
LUIZ SALDANHA
Keyword(s):  
New Species ◽  
Hydrothermal Vent ◽  
Valid Species ◽  
Lucky Strike ◽  
Pectoral Fins ◽  
Dorsal Fin ◽  
Fin Ray ◽  
Mid Atlantic Ridge ◽  
A New Species ◽  
Northeastern Atlantic

Gaidropsarus mauli, new species, is described from the Lucky Strike Hydrothermal vent site (Mid-Atlantic Ridge) and from the Bay of Biscay. It is distinguished from congeners by a combination of characters such as the number of vertebrae, the size of the first dorsal-fin ray, the profile of the head and the shape of the snout, in dorsal view, the size and the position of the eyes, the length of the pelvic fins, the shape of the pectoral fins, and the length of the lateral line. A comparison with the other 13 valid species of the genus is presented. 

A new species of Pseudione sensu lato (Isopoda: Bopyridae) on a squat lobster host from the deep South-West Atlantic

Zootaxa ◽  
2021 ◽  
Vol 4996 (2) ◽  
pp. 363-373
Author(s):  
EMANUEL PEREIRA ◽  
BRENDA LÍA DOTI ◽  
DANIEL ROCCATAGLIATA
Keyword(s):  
New Species ◽  
Ovigerous Female ◽  
Submarine Canyon ◽  
The Body ◽  
Deep South ◽  
Squat Lobster ◽  
South West ◽  
The Right ◽  
A New Species ◽  
Lateral Plates

A new bopyrid, Pseudione chiesai n. sp., is herein described based on an ovigerous female and an adult male found in the right branchial chamber on a specimen of Munida spinosa Henderson, 1885. This parasite was collected in the Mar del Plata submarine canyon at 819 m depth during the expedition “Talud Continental I” carried out by the Argentine RV Puerto Deseado in 2012. P. chiesai n. sp. belongs to the Pseudione “crénelés” group sensu Bourdon (1972, 1976), which currently contains seven species, all of which have galatheoid crabs as hosts. P. chiesai n. sp. can be separated from the other species in the Pseudione “crénelés” group by the following combination of characters: (1) both sides of the body convex, (2) frontal lamina with a few, shallow indentations, (3) coxal plates 1–4 and tergal projections 1–4 with distinct irregular margins, mainly on the right side, (4) pereomeres 5–7 with single/branched lateral digitations, (5) maxilliped palp well-developed and setose, and (6) pleon with lateral plates 1–5 distally rounded and directed laterally. The taxonomic position of this new species is briefly discussed.  

scholarly journals Austrolebias queguay (Cyprinodontiformes, Rivulidae), a new species of annual killifish endemic to the lower Uruguay river basin

2018 ◽  
Vol 94 (2) ◽  
pp. 547-556 ◽  
Author(s):  
Wilson S. Serra ◽  
Marcelo Loureiro
Keyword(s):  
New Species ◽  
River Basin ◽  
Distal Portion ◽  
The Body ◽  
Annual Fish ◽  
Pectoral Fins ◽  
Bluish Green ◽  
Close Relationship ◽  
Uruguay River ◽  
A New Species

In this article we describe a new species of the annual fish genusAustrolebiasfrom the lower Uruguay river basin. The fusion of the urogenital papilla to the first anal fin ray in males and the pigmentation pattern, indicates a close relationship with the clade formed byA.bellottii,A.melanoorus, andA.univentripinnis. The new species can be differentiated from those by the following combination of characters: presence of well-defined light bands contrasting with the sides of the body, the distal portion of the anal fin dark gray, pelvic fins dark bluish green and bases united at about 50–80% on their medial margins, pectoral fins with iridescent blue sub-marginal band, and general coloration of body bluish green. The new species can only be found in wetlands of the Queguay river, an area included in the Uruguayan protected areas system and represents so far the only annual fish species endemic to the lower Uruguay river basin.

2. Observations on a New Species of British Gurnard, and on a Species of Sole new to Science

1845 ◽  
Vol 1 ◽  
pp. 157-158
Author(s):  
Richard Parnell
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Free Margin ◽  
Pectoral Fins ◽  
Dorsal Fin ◽  
The Mediterranean ◽  
Dark Blue ◽  
A New Species

The author obtained, in the early part of last September, at Brixham, in Devonshire, seven specimens of a species of Gurnard, which has been known for thirty years past to the fishermen there under the name of Finned Captains. This he ascertained to be the Trigla lucerna of Brunner. The species is known as an inhabitant of the Mediterranean, where it was first noticed by Rondeletius, but mistaken by him for the T. cuculus of Linnæus. Since then, Brunner noticed it at Marseilles, Risso at Nice, Leach at Malta, and Cuvier at Naples; but it had not been previously observed by any naturalist on the British coasts. The largest specimen obtained by the author is 10½ inches long. The back is light red, the pectoral fins dark blue, the sides marked by a silvery band from the gill-cover to the tail; the lateral line smooth, and formed by numerous semicircular plates, beautifully radiated at their free margin ; the scales thin, large, and entire; the second ray of the first dorsal fin very long, so as to reach, when folded down, beyond the sixth ray of the second dorsal fin. (See Plate.)

Description of a new deep-water species of Heteroclinus (Pisces: Teleostei: Clinidae), from southern Australia

Zootaxa ◽  
2021 ◽  
Vol 5082 (3) ◽  
pp. 286-293
Author(s):  
DOUGLASS F. HOESE ◽  
JOHN J. POGONOSKI
Keyword(s):  
New Species ◽  
South Australia ◽  
The Body ◽  
Dorsal Fin ◽  
Fin Rays ◽  
First Ray ◽  
Deep Water Species ◽  
Shallow Water Species ◽  
A New Species ◽  
Water Species

Heteroclinus argyrospilos, n. sp. is described as a new species from specimens sampled by sled and dredge in 55–100 m off South Australia and Western Australia. The species has a strongly compressed body and spatulate orbital tentacle similar to some shallow water species, particularly those of the Heteroclinus heptaeolus complex, which is characterized by having three segmented dorsal-fin rays, with the last two rays widely separate from the first ray. It is distinct from other Australian clinids in having two segmented dorsal-fin rays, well separated from the last dorsal-fin spine and a reduced lateral line on the body. It is known from a greater depth than other members of the genus.  

Gymnothorax hansi, a new species of moray eel (Teleostei: Anguilliformes: Muraenidae) from the Comoro Islands, Western Indian Ocean

Zootaxa ◽  
2004 ◽  
Vol 515 (1) ◽  
pp. 1
Author(s):  
PHILLIP C. HEEMSTRA
Keyword(s):  
New Species ◽  
Western Indian Ocean ◽  
The Body ◽  
Dorsal Fin ◽  
Gill Opening ◽  
Posterior Nostril ◽  
Eye Diameter ◽  
Tail Tip ◽  
A New Species ◽  
Moray Eel

Gymnothorax hansi, a new species of moray eel, is described from three specimens caught in ~ 146 m at Grand Comoro (Ngazidja) Island in the Comoros Islands. The length of the head plus the body is distinctly longer than tail; the dorsal fin origin is at a vertical midway between the gill opening and the rear edge of the eye. The head length is 11 to 12% total length. The colour is chestnut brown dorsally on the head, body and most of the tail; the dorsal and anal fins are brown anteriorly, blackish posteriorly with a bright white margin from dorsal fin origin round the tail tip to the anal fin origin; anterior nostril tube, posterior nostril mound and iris are yellow; head and ventrolateral part of body of 101 cm adult male golden brown, with several, irregular, distinct, dusky or black spots scattered over most of the body, tail and dorsal fin; head of 101 cm adult female brown dorsally, paler below; female with a few faint dusky spots on body and tail; both sexes with pores on jaws set in white spots. Teeth small, sharp, caniniform, slightly curved, uniserial on maxillae and dentaries; longest intermaxillary tooth equals 64% eye diameter; vomer with 3 minute teeth. The vertebral counts are higher than in most morays: 4 predorsal, 82 84 preanal and 183 185 total.

A new species of Cetopsis from the Guiana Shield (Siluriformes: Cetopsidae: Cetopsinae)

Zootaxa ◽  
2019 ◽  
Vol 4664 (2) ◽  
pp. 221-232
Author(s):  
VITOR ABRAHÃO ◽  
JAN MOL ◽  
MARIO DE PINNA
Keyword(s):  
New Species ◽  
River Basin ◽  
Sister Group ◽  
The Body ◽  
Guiana Shield ◽  
New Taxon ◽  
Dorsal Fin ◽  
Maracaibo Basin ◽  
Dark Pigmentation ◽  
A New Species

A new species of Cetopsis is described from Guiana Shield drainages in Guyana and Suriname. The new species is found in the Konawaruk River and tributaries, Essequibo River basin, Guyana, and in the Mauritie Creek, tributary to the Tempati River, upper Commewijne River basin, Suriname. The new taxon can be distinguished from all congeners by a combination of features: dark spots on sides of the body eye-sized or larger, dark, bilobed patch at the base of the caudal fin, absence of a dark humeral spot, absence of dark pigmentation along the fin-membrane posterior to the first dorsal-fin ray, dark pigmentation at the base of the dorsal fin, dark spots extending ventrally to the bases of anal-fin rays, and 41 total vertebrae with 28 caudal vertebrae. Data on internal anatomy of the new species were incorporated into a previously-published phylogenetic analysis and resolves the position of the new species as the sister group of C. motatanensis, from Lago Maracaibo basin. The new Cetopsis is the first species of the genus known to occur exclusively in the Guiana Shield. 

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 Chrysobrycon yoliae, a new species of stevardiin (Characiformes: Characidae) from the Ucayali basin, Peru

2014 ◽  
Vol 12 (2) ◽  
pp. 291-300 ◽  
Author(s):  
James Anyelo Vanegas-Ríos ◽  
María de las Mercedes Azpelicueta ◽  
Hernán Ortega
Keyword(s):  
New Species ◽  
Posterior Margin ◽  
The Body ◽  
Pelvic Bone ◽  
Body Depth ◽  
Dorsal Fin ◽  
Fin Rays ◽  
Adipose Fin ◽  
Fin Length ◽  
A New Species

Chrysobrycon yoliae, new species, is described from a drainage flowing into the río Yucamia basin, río Ucayali basin, Peru. Chrysobrycon yoliaeis readily distinguished from its congeners by the anterior tip of pelvic bone situated anterior to the fifth rib (vs. situated posterior to the fifth rib), the presence of 20-26 dentary teeth (vs. 11-19), and the possession of a terminal lateral-line tube between caudal-fin rays 10 and 11 (vs. the absence of this tube, except in C. eliasi). The new species differs from C. eliasiand C. myersiby the presence of teeth on third pharyngobranchial (vs. the absence of teeth on this bone) and also differs from C. eliasiby the dorsal-fin origin situated at vertical through anal-fin rays 5 to 7 (vs. located at vertical through anal-fin rays 8 to 10), the posterior extent of the ventral process of quadrate reaching the vertical through posterior margin of symplectic (vs. not reaching the vertical through posterior margin of symplectic), the dorsal-fin to adipose-fin length 26.8-28.8% SL (vs. 23.9-26.8% SL), and the body depth at dorsal-fin origin 34.4-42.2% SL (vs. 24.1-34.5% SL). A key for the identification of Chrysobryconspecies is provided.

Acanthocobitis pictilis, a new species of loach from Myanmar and Thailand (Teleostei: Nemacheilidae)

Zootaxa ◽  
2012 ◽  
Vol 3327 (1) ◽  
pp. 45 ◽  
Author(s):  
MAURICE KOTTELAT
Keyword(s):  
New Species ◽  
The Body ◽  
Valid Species ◽  
Dorsal Fin ◽  
Fin Rays ◽  
A New Species

Acanthocobitis pictilis, new species, is described from the Ataran drainage in Myanmar and the Mae Khlong drainage inThailand. It had earlier been misidentified as A. rubidipinnis. It is distinguished by, among other characters, its colour pat-tern, especially the dark brown triangular saddles in the upper half of the body, strongly slanted anteriorly and becomingalmost vertical posteriorly, becoming paler in the middle, and forming pairs of narrow saddles in large individuals; lateralline complete; 12 ½ or 13 ½ branched dorsal-fin rays. Acanthocobitis mandalayensis is a valid species, removed from the synonymy of A. botia.

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