Revision of the genus Parequula (Pisces: Gerreidae) with a new species from southwestern Australia

Zootaxa ◽  
2012 ◽  
Vol 3425 (1) ◽  
pp. 42 ◽  
Author(s):  
YUKIO IWATSUKI ◽  
JOHN J. POGONOSKI ◽  
PETER LAST
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Nominal Species ◽  
Lateral Line Scale ◽  
Type Specimens ◽  
Southwestern Australia ◽  
Dorsal Fin ◽  
Line Scale ◽  
Fin Ray ◽  
A New Species

The genus Parequula, which has long been considered monotypic, is reviewed with a new species described fromsouthwestern Australia on the basis of 21 types and 17 non-type specimens (42–81 mm in standard length); its onlycongener, P. melbournensis (Castelnau), is also redescribed. Parequula elongata n. sp. differs from P. melbournensis inhaving a more slender body, a lower soft anal-fin ray count (14–15, mode 15 vs. 16–18, mode 17), a lower pored lateral-line scale count (34–35, mode 34 vs. 37–40, mode 38), and the dorsal fin with a reddish upper margin when fresh (vs.semi-translucent to bluish with a narrow, parallel, yellowish vertical line on each fin membrane and a yellowish fin marginin P. melbournensis). Furthermore, the head profile of P. elongata n. sp. is nearly straight to slightly convex, whereas P.melbournensis is distinctly concave in outline above the eyes. Nominal species (junior synonyms) of P. melbournensis are discussed and a key to the two species is also provided.

scholarly journals Odontanthias randalli n. sp., a new anthiine fish (Serranidae: Anthiinae) from Indonesia WILLIAM T. WHITE (Australia)

Zootaxa ◽  
2011 ◽  
Vol 3015 (1) ◽  
pp. 21 ◽  
Author(s):  
WILLIAM T. WHITE
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Dorsal Spine ◽  
Caudal Fin ◽  
Dorsal Fin ◽  
Bright Yellow ◽  
Pale Pink ◽  
Fin Ray ◽  
A New Species

Odontanthias randalli, a new species of anthiine serranid fish from southeastern Indonesia, is described, bringing the number of known species in the genus to 14. The new species is clearly distinguished from other members of the genus by the following combination of characters: dorsal-fin soft rays 16–17, lateral-line scales 37 to 39, 3rd dorsal spine longest, 3rd dorsal-fin soft ray the only filamentous dorsal-fin ray, caudal fin lunate with extremely long filamentous lobes, depth of body 2.2 to 2. 5 in SL, vomerine-tooth patch arrowhead shaped, and body pinkish with bright yellow spots on upper half and four pale pink blotches below dorsal-fin base. The new species is compared with other members of the genus.

scholarly journals On a new species of the genus Moenkhausia Eigenmann (Ostariophysi: Characidae)

Zootaxa ◽  
2007 ◽  
Vol 1525 (1) ◽  
pp. 61-68 ◽  
Author(s):  
PAULO H.F. LUCINDA ◽  
LUIZ R. MALABARBA ◽  
RICARDO C. BENINE
Keyword(s):  
New Species ◽  
Distribution Pattern ◽  
Lateral Line ◽  
The Body ◽  
Dark Spot ◽  
Lateral Line Scale ◽  
Caudal Fin ◽  
Body Side ◽  
Line Scale ◽  
A New Species

A new species of the genus Moenkhausia is described from the middle portions of the Rio Tocantins and tentatively from the Rio Apure in Venezuela, Rio Orinoco drainage. It is diagnosed by the presence of a dark spot in the half proximal length of the upper caudal-fin lobe, and by the presence of a large, irregularly shaped humeral spot located above the sixth to ninth perforated lateral line scale which is more posteriorly positioned along the body side in relation to other members of the genus. The distribution pattern of the new species is discussed.

Alburnus magnificus, a new species of bleak from the Orontes River drainage (Teleostei: Leuciscidae)

Zootaxa ◽  
2019 ◽  
Vol 4559 (2) ◽  
pp. 373 ◽  
Author(s):  
JÖRG FREYHOF ◽  
DAVUT TURAN
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Sequence Data ◽  
Eastern Mediterranean ◽  
Eastern Mediterranean Sea ◽  
River Drainage ◽  
Dorsal Fin ◽  
Fin Ray ◽  
Coastal Rivers ◽  
A New Species

Alburnus magnificus, new species, is described from the northern Orontes River drainage in the eastern Mediterranean Sea basin. It is most similar and closely-related to A. qalilus from coastal rivers in Syria south of the Orontes. Alburnus magnificus is distinguished from A. qalilus by having the anal-fin origin below or behind the vertical through the last dorsal-fin ray, 4–5 scale rows between the lateral line and the anal-fin origin, and a flank pattern of bold black, grey or brown scales on a silvery or brown background. The two species are also distinguished by a minimum K2P distance of 1.8% in their COI sequence data. 

A new syntopic species of small barb from the Western Ghats of India (Teleostei: Cyprinidae)

Zootaxa ◽  
2018 ◽  
Vol 4434 (3) ◽  
pp. 529 ◽  
Author(s):  
UNMESH KATWATE ◽  
PRADEEP KUMKAR ◽  
RAJEEV RAGHAVAN ◽  
NEELESH DAHANUKAR
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Western Ghats ◽  
Lateral Line Scale ◽  
Dorsal Fin ◽  
Line Scale ◽  
Mitochondrial Cytochrome B ◽  
Western Ghats Of India ◽  
The Western Ghats ◽  
Pelvic Fin

A new species of the cyprinid genus Pethia is described from the Hiranyakeshi, a tributary of the Krishna River system in the Western Ghats mountain ranges of peninsular India. The new species, Pethia sahit, is syntopic—and shoals together—with Pethia longicauda, a species described recently from the same river. Pethia sahit is distinguished from P. longicauda and its congeners by a combination of characters like, incomplete lateral line with 3–6 pored scales; 19–22 scales in lateral series; 4½ scales between dorsal-fin origin and lateral-line row and 2½ scales between lateral line row and pelvic-fin origin; intercalated scale row originates above and after the 6th scale of the lateral-line scale row; dorsal fin originating behind the pelvic-fin origin; 4+13 abdominal and 12 caudal vertebrae; dorsal, pectoral, pelvic, anal and caudal fins without any bands or spots, deep yellow-orange in color or deep red with a pale tint of orange in mature males; a dark-black vertically elongate humeral spot, overlapping the 4th lateral-line scale, extending over the base of one scale above and below the 4th scale; caudal peduncle spot dark, covering 14th–16th scales in lateral-line scale row. Genetic analysis based on the mitochondrial cytochrome b gene indicates that P. sahit and P. longicauda are not sister taxa. Further, P. sahit has no genetically proximate congener in the Western Ghats region, and differs from known congeners from south and southeast Asia, for which genetic data are available, with genetic distance ranging from 11.8–16.4%. 

Characidium chancoense, a new species of South American darter from the Río Cauca drainage, Colombia (Characiformes: Crenuchidae)

Zootaxa ◽  
2020 ◽  
Vol 4768 (2) ◽  
pp. 249-263 ◽  
Author(s):  
HENRY D. AGUDELO-ZAMORA ◽  
ARMANDO ORTEGA-LARA ◽  
DONALD C. B. TAPHORN
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Sexually Dimorphic ◽  
South American ◽  
Lateral Line Scale ◽  
Pigmentation Pattern ◽  
Line Scale ◽  
Vertical Bars ◽  
A New Species

Characidium chancoense new species, is described from the transandean upper Río Cauca drainage in Colombia. It can be distinguished from all congeners by its pigmentation pattern that consists of 7–12 vertical bars, most of which are cuneate-shaped with the vertex ending on or just below the lateral-line scale series, except for the last 1–4, which are dorsoventrally elongate rectangular bars that extend well below the lateral line. Characidium chancoense is sympatric with C. caucanum Eigenmann, C. phoxocephalum Eigenmann, C. cf. zebra Eigenmann and C. cf. boavistae Steindachner. Unlike C. caucanum and C. cf. boavistae, C. chancoense does not appear to be sexually dimorphic. 

scholarly journals A new species of Metzia (Cypriniformes: Cyprinidae) from Northern Laos

Zootaxa ◽  
2012 ◽  
Vol 3586 (1) ◽  
pp. 264 ◽  
Author(s):  
KOICHI SHIBUKAWA ◽  
PHOUVIN PHOUSAVANH ◽  
KONEUMA PHONGSA ◽  
AKIHISA IWATA
Keyword(s):  
New Species ◽  
Cyprinid Fish ◽  
Dorsal Fin ◽  
Line Scale ◽  
Fin Ray ◽  
Fin Rays ◽  
Predorsal Scale ◽  
A New Species ◽  
Diagnostic Traits ◽  
Pelvic Fin

A new cyprinid fish, Metzia bounthobi, is described on the basis of 18 specimens (including 10 specimens in type series)from the Mekong River basin in Phongsaly and Luang Prabang Provinces, northern Laos. The species is distinguishedfrom congeners by having the following diagnostic traits: 18–20 branched anal-fin rays (vs. 10–18 in the others); 49–55lateral-line scale rows (vs. 35–48); 33–36 predorsal scale rows (vs. 15–20); 20–22 circumpeduncular scale rows (vs.14–18); 8–10 gill rakers on outer surface of first gill arch (vs. 12–18). The new species also resembles species of Hemic-ulterella, Ischikauia and at least some species of Anabarilius, in sharing a sharp keel developed only between the base ofthe pelvic fin and anus, soft last unbranched dorsal-fin ray, and air bladder composed of two chambers; however, M.bounthobi differs in having a considerably rounded snout (vs. pointed in Hemiculterella, Ischikauia and Anabarilius),18–20 branched anal-fin rays (vs. 8–17 in Hemiculterella, Ischiakuia and Anabarilius), 49–55 lateral-line scale rows (vs.more than 58 in Ischikauia and Anabarilius, except for A. transmontana with 54–57), air bladder with rounded posteriorend (vs. posterior end with a small lobe at least in Hemiculterella) and 39–40 vertebrae (vs. 40–43, 42–43 and 43–48 in Hemiculterella, Ischikauia and Anabarilius, respectively).

Leporinus amazonicus, a new anostomid species from the Amazon lowlands, Brazil (Osteichthyes: Characiformes)

Zootaxa ◽  
2008 ◽  
Vol 1815 (1) ◽  
pp. 35 ◽  
Author(s):  
GERALDO MENDES DOS SANTOS ◽  
JANSEN ZUANON
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Body Height ◽  
Color Pattern ◽  
Lateral Line Scale ◽  
Fish Family ◽  
Subsistence Fisheries ◽  
Line Scale ◽  
Different Color ◽  
A New Species

Leporinus amazonicus, a new species of anostomid fish, is described from the central portion of the Amazon lowlands. It is a medium-sized fish (up to 250 mm SL) with streamlined body (maximum body height approximately 25% of SL) and high lateral line scale counts (45–47). Leporinus amazonicus is morphologically similar to the slender bodied species L. cylindriformis Borodin, 1929 and L. brunneus Myers, 1950, but differs from them by the higher lateral line scale count (41–43 in L. cylindriformis and 36–42 in L. brunneus) and by a different color pattern. Moreover, L. amazonicus is apparently restricted to the white waters of the Amazon lowlands whereas L. cylindriformis and L. brunneus are known only from clear and black waters of several of the Rio Amazonas tributaries. Despite intensive collecting efforts historically developed in Brazilian Central Amazon, just a few specimens of L. amazonicus were caught, indicating that the new species is relatively rare in that area and apparently do not join in large schools. However, this supposed rarity may be biased by the concentration of our collecting efforts around Manaus, which may represent a marginal distribution of this species. Nevertheless, the presence of a new species of a taxonomically well-known fish family in an area intensively exploited by commercial and subsistence fisheries evidences the need for fish species surveys in the Amazon, even in supposedly well sampled sites and around the most populous areas.

A new species of Myloplus Gill (Characiformes, Serrasalmidae) from the Tumucumaque Mountain Range, Brazil and French Guiana, with comments on M. rubripinnis

Zootaxa ◽  
2018 ◽  
Vol 4403 (1) ◽  
pp. 111 ◽  
Author(s):  
MARCELO C. ANDRADE ◽  
MICHEL JÉGU ◽  
CECILE S. GAMA
Keyword(s):  
New Species ◽  
Lateral Line ◽  
French Guiana ◽  
Color Pattern ◽  
Mountain Range ◽  
Type Specimens ◽  
Dorsal Fin ◽  
Fin Rays ◽  
A New Species

A new species of Myloplus Gill is described from Eastern Tumucumaque Mountain Range, drainages of the Oyapock and Araguari rivers between Brazil and French Guiana. The new species is diagnosed by having comparatively large scales on the flanks, resulting in lower counts when compared with congeners, i.e., 59 to 70 total perforated scales on lateral line, 31 to 35 longitudinal scales above lateral line, 24 to 29 longitudinal scales below lateral line, and 22 to 26 circumpeduncular scale rows. The new species most closely resembles Myloplus rubripinnis by sharing with this species a general rounded shape, a similar color pattern, and a high number of rays, i.e., 23 to 25 branched dorsal-fin rays and 35 to 38 branched anal-fin rays in the new species (vs. 24 to 25 and 32 to 40, respectively, in M. rubripinnis). After reviewing the available type-specimens of all Myloplus species, M. rubripinnis is re-diagnosed as having higher counts of branched dorsal-fin rays and anal-fin rays combined to tiny scales on flanks, i.e., 85 to 89 total perforated scales on lateral line, 38 to 45 longitudinal scales above lateral line, 33 to 42 longitudinal scales below lateral line, and 30 to 39 circumpeduncular scale rows. 

Taxonomy and systematics of the ‘Maharaja Barbs’ (Teleostei: Cyprinidae), with the description of a new genus and species from the Western Ghats, India

Zootaxa ◽  
2020 ◽  
Vol 4803 (3) ◽  
pp. 544-560
Author(s):  
UNMESH KATWATE ◽  
PRADEEP KUMKAR ◽  
RAJEEV RAGHAVAN ◽  
NEELESH DAHANUKAR
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Western Ghats ◽  
River System ◽  
Single Species ◽  
Body Coloration ◽  
Line Scale ◽  
Fin Ray ◽  
The Western Ghats ◽  
A New Species

Maharaja Barbs (Teleostei: Cyprinidae), endemic to the high-altitude streams of the northern Western Ghats are currently represented by a single species, Puntius sahyadriensis. Integrative taxonomic analysis of these fishes reveals them to form a distinct clade within the Cyprinidae, for which we propose the name Waikhomia gen. nov. Waikhomia differs from Puntius and other closely related genera by a combination of characters including: barbels absent; last unbranched dorsal-fin ray smooth, with highly segmented apex; total vertebrae 30 (17 abdominal and 13 caudal); post-epiphysial fontanelle absent, frontals elongated, parietals narrow; infraorbital 2–4 large, deep and wide, overlapping cheek and preopercle; opercle not overlapping the interopercle laterally; free uroneural 2 absent; lateral line complete, with 23–25 perforated scales; pelvic fins jet black with tip of fins white; and body coloration consisting of multiple (6–8) spots and blotches on side of body. We also describe a new species of Waikhomia from the west-flowing Kali river system in the northern part of the Western Ghats, India. The new species, Waikhomia hira is distinguished from W. sahyadriensis by a combination of characters including a distinct body coloration, consisting of 7–8 small, rhomboidal spots arranged across the lateral-line scale row; 23­–25 perforated lateral line scales; 10 pre-dorsal scales and 2–3 sparsely spaced gill rakers on epibranchial 1. Further, W. hira differs from its sister taxon, W. sahyadriensis, by a raw genetic distance ranging from 4.3–4.9% in partial cytochrome oxidase subunit 1, and 7.0–8.2% in partial cytochrome b genes. 

scholarly journals A new species of Hemibrycon (Characiformes: Characidae), a freshwater fish from the Sierra Nevada of Santa Marta, Caribbean drainage, Colombia

2015 ◽  
Vol 7 (1) ◽  
pp. 89-97 ◽  
Author(s):  
Carlos A. García-Alzate ◽  
César Román Valencia ◽  
Donald C. Taphorn
Keyword(s):  
New Species ◽  
Sierra Nevada ◽  
Lateral Line ◽  
Caudal Peduncle ◽  
Dorsal Fin ◽  
Fin Ray ◽  
Fin Rays ◽  
Adipose Fin ◽  
A New Species ◽  
Pelvic Fin

Hemibrycon is a group of freshwater characid fish species first recognized by Günther (1864) as a subgenus of Tetragonopterus, and now included in the subfamily Stevardiinae. There are 21 speciesrecorded from the rivers of Colombia, but only one species, H.santamartae, has been reported previously in drainages of the Sierra Nevada de Santa Marta. Hemibrycon sierraensis n. sp. is described fromthe Río Gaira, Caribbean coastal drainage. It is distinguished from all congeners by having in life a bright red adipose fin (vs. hyaline or transparent)that turns dark brown in specimens preserved in alcohol. It differs from Hemibrycon beni, H. boquiae, H. brevispini, H. colombianus, H. mikrostiktos, H. metae, H. microformaa, H. palomae and H. rafaelense in having a vertically elongate humeral spot that extends 3-4 longitudinal scale series below the lateral line. It differs from H. divisorensis, H. pautensis and H. santamartae by having the last dorsal-fin ray unbranched; and from H. pautensis by the number of scale series between the lateralline and the pelvic-fin insertions. It differs from H. divisorensis in the number of unbranched anal-fin rays, and the number of teeth on the dentary and maxilla. It differs from H. santamartae in the number of supraneurals, caudal peduncle depth, head length and orbital diameter.

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