A new species of Pimelodus LaCépède, 1803 (Siluriformes: Pimelodidae) from rio Itacaiunas, rio Tocantins basin, Brazil

Zootaxa ◽  
2010 ◽  
Vol 2343 (1) ◽  
pp. 57 ◽  
Author(s):  
MARCELO SALLES ROCHA ◽  
FRANK RAYNNER V. RIBEIRO
Keyword(s):  
New Species ◽  
Short Distance ◽  
Dorsal Surface ◽  
Distal Portion ◽  
Type Locality ◽  
Pigmentation Pattern ◽  
Dorsal Fin ◽  
Posterior Nostril ◽  
A New Species

Pimelodus luciae is described from rio Itacaiunas, rio Tocantins basin. The new species exhibits a unique spotted pigmentation pattern for Pimelodidae. Pimelodus luciae differs further from remaining valid Pimelodus species by the following combination of characters: the relatively short distance between the posterior nostril and the anterior orbital border; dorsal surface of the supraoccipital process rounded; horizontal orbital diameter greater than interorbital distance; and distal portion of dorsal fin hyaline. Pimelodus luciae is known only from the type-locality.

A new cutthroat eel of the genus Synaphobranchus (Anguilliformes: Synaphobranchidae) from Taiwan

Zootaxa ◽  
2018 ◽  
Vol 4454 (1) ◽  
pp. 68
Author(s):  
HSUAN-CHING HO ◽  
WEI-CHUN HONG ◽  
HONG-MING CHEN
Keyword(s):  
New Species ◽  
Dorsal Surface ◽  
Type Specimens ◽  
Dorsal Fin ◽  
A New Species

A new species of the cutthroat eel genus Synaphobranchus is described from Taiwan on the basis of 12 types and 11 non-type specimens. The new species can be distinguished from its congeners in having most of its head and abdomen naked, except for a patch of scales behind the eye, dorsal surface of trunk naked or covered by scattered scales; scales oval in shape; dorsal fin slightly before to about opposite to origin of anal fin; mean vertebral formula 28-28-131, precaudal vertebrae 50–56, total vertebrae 124–135. Comments of the congeners occurred in adjacent regions are provided.

New species of Pycnogonum (Pycnogonida: Pycnogonidae) from Green Island, Taiwan, with an additional note on the holotype of P. spatium

Zootaxa ◽  
2020 ◽  
Vol 4750 (1) ◽  
pp. 122-130
Author(s):  
DAMIN LEE ◽  
WON KIM
Keyword(s):  
New Species ◽  
Dorsal Surface ◽  
Ventral Surface ◽  
Type Locality ◽  
Present Species ◽  
Shallow Waters ◽  
University Museum ◽  
Green Island ◽  
A New Species ◽  
Dorsal Tubercle

We report the discovery of a new species of the genus Pycnogonum Brünnich, 1764 found in the shallow waters of Green Island, Taiwan. Pycnogonum (Nulloviger) granulatum sp. nov. is characterized by the presence of the granular integument, a dorsal tubercle on the proboscis, the transverse ridges on the dorsal surface of the trunk, and the spines on the ventral surface of the tibia, tarsus, and propodus having cleft tips. Because the male gonopores are present and ovigers are absent, the present species belongs to the subgenus Nulloviger. The present species has been compared with P. (N.) moolenbeeki Stock, 1992, P. (N.) lobipes Stock, 1991, P. (N.) tuberculatum Clark, 1963, P. nodulosum Döhrn, 1881, and P. spatium Takahashi, Dick & Mawatari, 2007. Among the congeners, P. spatium is geographically the closest congener, of which type locality is Amami Island, Japan. The holotype of P. spatium was loaned from Hokkaido University Museum (ICHUM) and re–examined. To determine the exact gender of the holotype of P. spatium, additional investigations of the coxal pellicula and gonopores are required. 

A new species of snake eel, Pisodonophis sangjuensis (Anguilliformes: Ophichthidae) from Korea

Zootaxa ◽  
2011 ◽  
Vol 2758 (1) ◽  
pp. 57 ◽  
Author(s):  
HWAN-SUNG JI ◽  
JIN-KOO KIM
Keyword(s):  
Mitochondrial Dna ◽  
New Species ◽  
12S Rrna ◽  
Pectoral Fin ◽  
Closely Related Species ◽  
Dorsal Fin ◽  
Posterior Nostril ◽  
South Sea ◽  
A New Species ◽  
Rrna Sequences

A new snake eel, Pisodonophis sangjuensis, is described based on 24 specimens collected from the South Sea of Korea (water depth 5–100 m) between 2005 and 2010. This species is characterized by the following morphological features: fleshy protrusions before and behind the posterior nostril; 1–2 regular rows of conical teeth in both jaws, prevomer and vomer are slightly separated from each other; the origin of the dorsal fin above the middle of the pectoral fin; and the pectoral fin is rounded and not elongated. Pisodonophis sangjuensis is most similar to P. cancrivorus in morphology, but the two species differ in their teeth shape (conical in P. sangjuensis vs. granular in P. cancrivorus), and their numbers of vertebrae (143–153 vs. 153–164, respectively). Pisodonophis sangjuensis differs from P. boro in the origin of the dorsal fin (above the middle of the pectoral fin in P. sangjuensis vs. far behind the pectoral fin in P. boro), their numbers of vertebrae (143–153 vs. 170–177, respectively), and their teeth shape (conical in P. sangjuensis vs. granular in P. boro). Pisodonophis sangjuensis is also easily distinguishable morphologically from the remaining seven Pisodonophis spp. worldwide. Molecular analysis using mitochondrial DNA 12S rRNA sequences supported that P. sangjuensis is a new species because of the considerable genetic distance from what appears to be its most closely related species, P. cancrivorus (d=0.068).

A new deepwater gurnard of the genus Pterygotrigla (Scorpaeniformes: Triglidae) from the southwestern Indian Ocean

Zootaxa ◽  
2019 ◽  
Vol 4706 (1) ◽  
pp. 189-200
Author(s):  
TAKUJI YATO ◽  
ELAINE HEEMSTRA
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Dorsal Surface ◽  
Pectoral Fin ◽  
Dorsal Fin ◽  
Fin Rays ◽  
Black Blotch ◽  
Opercular Spine ◽  
A New Species ◽  
Southwestern Indian Ocean

A new species of deepwater gurnard, Pterygotrigla (Otohime) madagascarensis sp. nov. is described, based on two specimens collected on the upper continental slope south of Madagascar, in the southwestern Indian Ocean. The new species belongs to the tropical Indo-Pacific subgenus Otohime in having a short rostral projection, short posttemporal spine, long opercular spine and no cleithral spine. It is most similar to P. (O.) multipunctata, and P. (O.) urashimai, in having no large blotch on the first dorsal fin, a jet-black blotch and no white ocellus on the inner pectoral-fin surface, with no scales on the breast and front of the pectoral-fin base. However, the new species differs from the latter two species by the combination of the following characters: first dorsal-fin spines 7, second dorsal-fin rays 12, dusky rays on the inner pectoral-fin surface, one row of blackish botches on second dorsal fin, and no papillae on the dorsal surface of oral cavity. A key is provided for the twelve Pterygotrigla species now in the subgenus Otohime. 

Synodus cresseyi Prokofiev, 2008, an unnecessary replacement for S. macrocephalus Cressey, 1981, and a description of a new species from the Western Indian Ocean (Teleostei: Synodontidae)

Zootaxa ◽  
2018 ◽  
Vol 2419 (1) ◽  
pp. 63 ◽  
Author(s):  
HSUAN-CHING HO ◽  
ARTÉM M. PROKOFIEV ◽  
KWANG-TSAO SHAO
Keyword(s):  
New Species ◽  
Dorsal Surface ◽  
Western Indian Ocean ◽  
Ventral Surface ◽  
Zoological Nomenclature ◽  
Posterior Teeth ◽  
Posterior Flap ◽  
Pectoral Fins ◽  
Posterior Nostril ◽  
A New Species

Synodus cresseyi Prokofiev, 2008 is an unnecessary replacement name for S. macrocephalus Cressey, 1981 according to Article 23.9.5 of the International Code of Zoological Nomenclature. The material used for the description of S. cresseyi includes two species. One of them represents a new species which differs from its congeners in the following combination of characters: anterior palatine teeth not longer than posterior teeth; preopercle scaled posterior to corner of mouth; membranous posterior flap of anterior nostril slender, with a pointed tip, reaching to above posterior nostril when laid back; pectoral fins reaching a line connecting dorsal and pelvic fin origins; pelvic process broad; color in alcohol without any marking, deep brown on dorsal surface restricted to central two-third of head and body, about two scale rows above lateral line, lateral and ventral surface uniformly silver white without blotches.

scholarly journals A new species of Boehlkea (Characiformes: Characidae: Stevardiinae) from the rio Japurá, Amazon basin, Brazil

2017 ◽  
Vol 15 (3) ◽  
Author(s):  
Isabel M. Soares ◽  
Vinicius A. Bertaco ◽  
Priscila Madoka M. Ito ◽  
Jansen Zuanon
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Amazon Basin ◽  
Color Pattern ◽  
Distal Portion ◽  
Lower Number ◽  
Dorsal Fin ◽  
Basal Half ◽  
A New Species ◽  
Pelvic Fin

ABSTRACT A new species of Boehlkea is described from rio Japurá, Amazon basin. The new species differs from B. fredcochui by the presence of a vertically elongate humeral spot (vs. absence), complete lateral line (vs. incomplete), four rows of scales below lateral line (vs. three), and lower number of branched anal-fin rays (17-21 vs. 22-25), and from B. orcesi by the higher number of maxillary teeth (13-14 vs. 5-12), greater head length (27.9-29.9% vs. 24.3-27.5% of SL), and by the color pattern (basal half of dorsal-fin, distal portion of pelvic-fin, lower caudal-fin lobe and anal-fin with black chromatophores vs. absence of black chromatophores in the fins).

Description of a new species of giant guitarfish, Glaucostegus younholeei sp. nov. (Rhinopristiformes: Glaucostegidae) from the northern Bay of Bengal, Bangladesh

Zootaxa ◽  
2021 ◽  
Vol 4995 (1) ◽  
pp. 129-146
Author(s):  
KAZI AHSAN HABIB ◽  
MD JAYEDUL ISLAM
Keyword(s):  
New Species ◽  
Dna Barcode ◽  
Dorsal Surface ◽  
Dorsal Fin ◽  
Total Length ◽  
Interorbital Space ◽  
Development Corporation ◽  
Mouth Width ◽  
Northern Bay Of Bengal ◽  
A New Species

A new species of giant guitarfish, Glaucostegus younholeei sp. nov., is described from 13 specimens, 730–933 mm total length, collected from fish landing center of Bangladesh Fisheries Development Corporation in Cox’s Bazar district of Bangladesh. The new species is distinguished from congeners in having the following combination of characters: Body brownish or greyish in color with a narrowly wedge-shaped disc, and long narrow bluntly pointed snout (angle 31–40°), and broad oblique nostrils with the narrow anterior opening. Nostrils about half of the mouth width, subequal (0.98–1.33) to internasal width; ~55–57 nasal lamellae; anterior nasal flaps slightly penetrating into internasal space, their interspace 2.20– 2.61 in length of the posterior nasal aperture. Orbit very small in adults, diameter 8.19–11.62 in preorbital length, 2.25–2.69 in interorbital space. Rostral ridges almost joined along their entire length; margin of cranium sharply demarcated before eyes. Spiracular folds very short and widely separated. Skin rough, densely covered with small denticles, more coarsely granular on the dorsal surface than ventrally, enlarged between orbits and in a distinct band between nape and first dorsal fin. Tail relatively longer, length 1.15–1.48 in disc length; dorsal fins narrowly spaced, interspace 1.32–2.11 in base length of the first dorsal fin. Clasper length in adult male 4.37–5.70 in total length. Phylogenetic analysis of DNA barcode sequences also shows the clear divergence of Glaucostegus younholeei from other congeneric species obtained from GenBank. A key is provided to the 8 known members including new species of the genus Glaucostegus.  

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.

Scolopsis meridiana, a new species of monocle bream (Perciformes: Nemipteridae) from northern Australia

Zootaxa ◽  
2018 ◽  
Vol 4500 (2) ◽  
pp. 222 ◽  
Author(s):  
JUMPEI NAKAMURA ◽  
BARRY C. RUSSELL ◽  
GLENN I. MOORE ◽  
HIROYUKI MOTOMURA
Keyword(s):  
New Species ◽  
Anterior Margin ◽  
Northern Australia ◽  
Caudal Peduncle ◽  
Dorsal Fin ◽  
Lateral Body ◽  
Posterior Nostril ◽  
Geographic Populations ◽  
Fin Length ◽  
A New Species

Scolopsis meridiana n. sp., described from 30 specimens collected from northern Australia, is closely related to S. taenioptera, both species having a dorsal scaled area on the head extending anteriorly to between the anterior margin of the eye and anterior nostril, the upper part of the pectoral-fin base with a reddish blotch when fresh, and lacking a small antrorse spine below the eye. However, the new species is distinguished from the latter by having two bands across the snout dorsum (vs. one band in S. taenioptera), 18–20 diagonal lines on the lateral body surface below the lateral line (diagonal lines absent), the posterior nostril horizontally elongated (vertically elongated), a deep caudal-peduncle and short pre-dorsal-fin length. Scolopsis meridiana is distributed in northern Australia, whereas S. taenioptera occurs in Southeast Asia. Two geographic populations of S. taenioptera (Philippines and remaining Southeast Asian region) are recognized following morphological and genetic analyses. 

scholarly journals New species of Trachycorystes Bleeker, with comments on other species of the genus (Ostariophysi: Siluriformes: Auchenipteridae)

2011 ◽  
Vol 9 (2) ◽  
pp. 273-279 ◽  
Author(s):  
Heraldo A. Britski ◽  
Alberto Akama
Keyword(s):  
New Species ◽  
Equal Length ◽  
Type Locality ◽  
Nominal Species ◽  
Caudal Fin ◽  
Dorsal Fin ◽  
Skull Roof ◽  
Lower Jaw ◽  
Gas Bladder ◽  
A New Species

A new species of Trachycorystes from the rio Aripuanã, above Dardanelos and Andorinhas falls, is described. The new species is distinguished from the only other species of the genus, T. trachycorystes, by the following characteristics: jaws of equal length (vs. lower jaw prognathous in T. trachycorystes); skull roof covered by thick (vs. thin) integument; inner mental barbel very thin and short not reaching base of outer barbel (vs. extending to or beyond base of outer mental barbel); dorsal-fin spine serrated posteriorly, smooth or rough anteriorly (vs. serrated anteriorly and smooth or rough posteriorly); caudal fin shallowly forked (vs. emarginate); and gas bladder simple, without diverticula (vs. with three posterior diverticula). Comments and data on the nominal species Trachycorystes trachycorystes are provided. Trachycorystes cratensis Miranda Ribeiro, 1937, is allocated to the genus Trachelyopterus Valenciennes, 1840, and another local catfish species, Parotocinclus aripuanensis Garavello, 1988, has its type locality reassigned.

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