scholarly journals A new species of Hyphessobrycon (Characiformes: Characidae) from rio Portuguesa, rio Orinoco basin, Venezuela

Zootaxa ◽  
2008 ◽  
Vol 1747 (1) ◽  
pp. 61 ◽  
Author(s):  
RICARDO C. BENINE ◽  
GUILHERME A. M. LOPES
Keyword(s):  
New Species ◽  
Adult Males ◽  
Caudal Fin ◽  
Generic Status ◽  
Dorsal Fin ◽  
Fin Rays ◽  
A New Species

A new species of Hyphessobrycon is described from tributaries of the río Portuguesa, río Orinoco Basin, Venezuela. The new species is diagnosed from congeners by the presence of two large hooks on each side of the anal fin in adult males (processes of last unbranched and first branched anal-fin rays), distal third of caudal-fin black except for its distal tips (which are hyaline), anal-fin rays v,19–21, and dorsal-fin rays ii,8. Comments on its generic status and putative relationships are provided.

Garra hormuzensis, a new species from the upper Kol River drainage in the Persian Gulf basin (Teleostei: Cyprinidae)

Zootaxa ◽  
2021 ◽  
Vol 5052 (3) ◽  
pp. 380-394
Author(s):  
MAZAHER ZAMANI-FARADONBE ◽  
E. ZHANG ◽  
YAZDAN KEIVANY
Keyword(s):  
New Species ◽  
Persian Gulf ◽  
Caudal Fin ◽  
River Drainage ◽  
Dorsal Fin ◽  
Mtdna Coi ◽  
Fin Rays ◽  
The Persian Gulf ◽  
A New Species

Garra hormuzensis, new species, is described from the Kol River drainage. It is distinguished from its congeners in the Iranian part of the Persian Gulf basin by having 7½ branched dorsal-fin rays, usually 9+8 branched caudal-fin rays, the breast, belly and back in front of the dorsal-fin origin covered by scales, and a free lateral and posterior margins of the gular disc. It is further characterised by having a minimum K2P distance of 1.16% to G. mondica in the mtDNA COI barcode region.  

A new species of Schindler's fish (Teleostei: Gobiidae: Schindleria) from the Malay Archipelago (Southeast Asia), with notes on the caudal fin complex of Schindleria

Zootaxa ◽  
2018 ◽  
Vol 4531 (1) ◽  
pp. 95
Author(s):  
HARALD AHNELT ◽  
MICHAEL SAUBERER
Keyword(s):  
New Species ◽  
Body Depth ◽  
Caudal Fin ◽  
Gobiid Fish ◽  
Dorsal Fin ◽  
Malay Archipelago ◽  
Fin Ray ◽  
Fin Rays ◽  
A New Species ◽  
Radial Plate

Schindleria macrodentata sp. nov., a new species of the paedomorphic gobiid fish genus Schindleria, is described from the Malay Archipelago. The two specimens were collected in 1929 during the “Dana Expedition” in the Molucca Sea between Sulawesi and Halmahera islands (00°29′N, 125°54′E) (Indonesia) and in the Sulu Sea close to Panay Island (11°43’N, 121°43′E) (Philippines). The new species is characterized by a slender body (body depth at pectoral fin base 3.6–3.7 % of SL and at anal fin origin 3.9–4.8 % of SL), a long second dorsal fin (first dorsal fin absent) originating distinctly anterior to the origin of the anal fin (predorsal length 61.8–65.2 % of SL and preanal length 71.7–75.8 % of SL), a short tail (from anus to tip of longest caudal fin ray) (22.1 % of SL), 19–20 dorsal fin rays and 10 anal fin rays, first anal fin ray below 9th dorsal fin ray, few large, widely spaced teeth in the upper and the lower jaws (7 on the premaxilla and 6 on the dentary), an elongated pectoral radial plate (length 3.7–4.5 % of SL) and, in the caudal skeleton, a procurrent ray with an additional spiny process at its base. No distinct urogenital papilla and no pigmentation on body are developed. In this study we present three morphological traits until now not considered as diagnostic characters for Schindleria, the shape of the pectoral radial plate, the shape of the last procurrent caudal spine and the shape of the arch formed by the lower jaw. We also discuss the caudal-fin skeleton of Schindleria, a character developing beyond the larval stages. The record of S. macrodentata is the first of the genus Schindleria for Indonesia and, at more than 100 km distant to the next shore, it is the first offshore record of a Schindler's fish. 

Hyphessobrycon oritoensis (Characiformes: Characidae), a new species from the Putumayo River drainage, Colombian Amazon

Zootaxa ◽  
2008 ◽  
Vol 1813 (1) ◽  
pp. 42 ◽  
Author(s):  
CARLOS A. GARCÍA-ALZATE ◽  
CÉSAR ROMÁN-VALENCIA ◽  
DONALD C. TAPHORN
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Posterior Border ◽  
Caudal Fin ◽  
River Drainage ◽  
Lateral Band ◽  
Dorsal Fin ◽  
Fin Rays ◽  
Colombian Amazon ◽  
A New Species

Hyphessobrycon oritoensis (Characiformes: Characidae) is described from the Putumayo River drainage of the Colombian Amazon. The new species belongs to the H. heterorhabdus group and is distinguished from all other known species by the following combination of characters: iii,8 dorsal–fin rays, iv, 26–27 anal–fin rays, 19 teeth on dentary, 35 scales in longitudinal series, 10–11 perforated scales in lateral line, 7 scales between lateral line and dorsal–fin origin, 14 predorsal scales and a dark lateral band that extends from the posterior border of the humeral spot to the tips of the middle caudal fin rays.

A new species of Creagrutus Günther (Characidae: Stevardiinae) from the Amazonian Piedmont of Colombia

Zootaxa ◽  
2020 ◽  
Vol 4755 (2) ◽  
pp. 365-374
Author(s):  
JUAN G. ALBORNOZ-GARZÓN ◽  
ASTRID ACOSTA-SANTOS ◽  
JUAN D. BOGOTÁ-GREGORY ◽  
EDWIN AGUDELO-CÓRDOBA
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Unique Combination ◽  
Caudal Fin ◽  
Dorsal Fin ◽  
Fin Rays ◽  
Phylogenetic Framework ◽  
A New Species ◽  
Piedmont Region

A new species of Creagrutus is described from the Amazonian Piedmont, Colombia. The new species can be distinguished from congeners by presenting the following unique combination of characters: a dark mid-lateral stripe starting at anteriormost scale of lateral line, a vertically elongated humeral blotch, absence of dark blotches on dorsal fin and at base of middle caudal-fin rays, a triangular dentigerous surface of the premaxilla, 5–6 dentary teeth, and 11–12 predorsal scales. Comparisons with congeners distributed in the piedmont region of Río Caquetá basin are presented and its relationships among species of Creagrutus is inferred from the available phylogenetic framework. 

Barilius signicaudus, a new species of cyprinid fish from Maeklong Basin, western Thailand (Cypriniformes: Cyprinidae)

Zootaxa ◽  
2012 ◽  
Vol 3586 (1) ◽  
pp. 138
Author(s):  
ANURATANA TEJAVEJ
Keyword(s):  
New Species ◽  
Cyprinid Fish ◽  
Similar Species ◽  
Caudal Fin ◽  
Dark Pigment ◽  
Dorsal Fin ◽  
Fin Rays ◽  
A New Species

Barilius signicaudus, a new species of cyprinid fish from the Khwae Noi and Khwae Yai branches of the Maeklong River,western Thailand, is described. It is characterized by the combination of a large, elongated blotch at the caudal-fin base(blotch is formed by the fusion of the large caudal spot at the fleshy end of the caudal base and the last vertical bar on theflank) that extends about 1/3 of the distance from the caudal-fin origin beyond the last scale on the caudal base to the mar-gin of the caudal fork; an anal-fin origin opposing the 2nd–4th branched dorsal-fin rays; eight scale rows above the lateralline; dark pigment on the dorsal fin concentrated mainly along the margins of the rays; 36 or more precaudal lateral-linescales; and small dentary tubercles. This species has previously been identified as Barilius pulchellus and Barilius orna-tus. Barilius pulchellus has no, or a small caudal spot, a dorsal fin with dark pigments concentrated in the middle of theinterradial regions, and much larger dentary tubercles. Barilius ornatus and similar species have an anal-fin position thatopposes the 5th–7th branched dorsal-fin rays (rarely the 4th), or does not overlap with them at all, and have no, or small caudal spots.

scholarly journals A new species of Hyphessobrycon Durbin(Characiformes: Characidae) from the rio Juruena basin, Central Brazil, with notes on H. loweae Costa & Géry

2013 ◽  
Vol 11 (1) ◽  
pp. 33-44 ◽  
Author(s):  
Leonardo F. S. Ingenito ◽  
Flavio C. T. Lima ◽  
Paulo A. Buckup
Keyword(s):  
New Species ◽  
First Record ◽  
Adult Males ◽  
Horizontal Scale ◽  
Mato Grosso ◽  
Central Brazil ◽  
Dorsal Fin ◽  
Fin Rays ◽  
A New Species ◽  
Red Coloration

A new species of Hyphessobrycon, H. peugeoti, is described from the middle portions of the rio Juruena drainage, upper rio Tapajós basin, Mato Grosso State, Brazil. It can be distinguished from all congeners, with the exception of H. loweae and H. heliacus, by a filamentous elongation of the dorsal fin and the approximately straight margin of the anal fin in adult males. It can be distinguished from both H. loweae and H. heliacus by an overall red coloration in life (vs. a golden coloration in life in the latter). Additionally, it can be distinguished from H. heliacus by the lack of chevron-like dark markings along the midline (vs. presence of chevron-like dark-markings in H. heliacus), and from H. loweae by the presence of only five horizontal scale rows between the dorsal-fin origin and the lateral line (vs. 6-7 in H. loweae), and the higher number of branched anal-fin rays (21-24, modally 22, vs. 17-21, modally 20, in H. loweae). Additional meristic, morphometric, and distributional data are provided for Hyphessobrycon loweae, including its first record in the rio Araguaia/Tocantins basin. Comments on a putative monophyletic group including H. peugeoti, H. loweae, H. heliacus, H. elachys, and H. moniliger are presented.

A new rainbowfish (Teleostei: Melanotaenioidei: Bedotiidae) from the southeastern highlands of Madagascar, with comments on the biogeography of Bedotia

Zootaxa ◽  
2005 ◽  
Vol 1051 (1) ◽  
pp. 39 ◽  
Author(s):  
JOHN S. SPARKS ◽  
LEILA M.R. RUSH
Keyword(s):  
New Species ◽  
Adult Males ◽  
Drainage Basins ◽  
Caudal Fin ◽  
River Drainage ◽  
Dorsal Fin ◽  
Bright Yellow ◽  
Small Streams ◽  
A New Species

Bedotia albomarginata, a new species of Malagasy rainbowfish, is described from forested habitats in the southeastern highlands of Madagascar. The new species is distinguished from congeners by the presence of broad white margins on the second dorsal fin and anal fin in males, a markedly lanceolate caudal fin in adult males, and in life, by a bright yellow to orangish-red anal fin in both sexes. Bedotia albomarginata is known only from small streams and swamps within the upper to middle reaches of the Mananara and Rienana river drainage basins.

scholarly journals Description of a new species of Ituglanis (Siluriformes: Trichomycteridae) from Serra dos Carajás, rio Tocantins basin

2012 ◽  
Vol 10 (3) ◽  
pp. 547-554 ◽  
Author(s):  
Wolmar B. Wosiacki ◽  
Guilherme M. Dutra ◽  
Marina B Mendonça
Keyword(s):  
New Species ◽  
Color Pattern ◽  
Caudal Fin ◽  
Dorsal Fin ◽  
Trunk Line ◽  
Fin Rays ◽  
The Relationship ◽  
A New Species

A new species of Ituglanis is described from the rio Tocantins basin, State of Pará, Brazil. Ituglanis ina, new species, is distinguished from its congeners by the presence of a dark vertical bar over the base of the caudal-fin rays (vs. no bars over caudal-fin base); and by the presence of a middle trunk line of tiny neuromasts extending along the flank until the vertical through the dorsal fin, or near the caudal-fin base (vs. no middle trunk line of tiny neuromasts). Ituglanis ina can be further distinguished by a combination of characters related to color pattern and morphology. Comments on the relationship between Ituglanis species are presented.

scholarly journals Physoschistura dikrongensis, a new loach from Arunachal Pradesh, India (Teleostei: Nemacheilidae)

Zootaxa ◽  
2012 ◽  
Vol 3586 (1) ◽  
pp. 249 ◽  
Author(s):  
Y. LOKESHWOR ◽  
W. VISHWANATH
Keyword(s):  
New Species ◽  
Lateral Line ◽  
The Body ◽  
Arunachal Pradesh ◽  
Caudal Fin ◽  
Sensory Canal ◽  
Dorsal Fin ◽  
Fin Rays ◽  
Brahmaputra Basin ◽  
A New Species

A new species of nemacheilid, Physoschistura dikrongensis, is described from the Brahmaputra basin in ArunachalPradesh, India. It is easily distinguishable from congeners in having two V-shaped dark brown bars across the caudal fintowards the distal end; 11–15 irregular bars on the body; dark brown mottled markings on the head; 4 simple and 8½branched dorsal-fin rays; 4 simple anal-fin rays; an incomplete lateral line; a forked caudal fin with 8+7 branched rays; a well-developed axillary pelvic lobe; suborbital flap in males, and nine preoperculo-mandibular sensory canal pores.

scholarly journals A new dark-dotted species of Hypostomus Lacépède (Siluriformes: Loricariidae) from rio Paraguaçu, Bahia State, Brazil

2013 ◽  
Vol 11 (2) ◽  
pp. 247-256 ◽  
Author(s):  
Angela M. Zanata ◽  
Byanca Sardeiro ◽  
Cláudio H. Zawadzki
Keyword(s):  
New Species ◽  
Ventral Surface ◽  
Anterior Portion ◽  
Caudal Fin ◽  
Dorsal Fin ◽  
Fin Rays ◽  
A New Species

A new species of Hypostomus Lacépède is described from the rio Paraguaçu basin, Bahia State, Brazil. The new species is distinguished from its congeners by having black and conspicuous dots on a pale background, which are similar in size on the head, trunk, and fins, along with ventral surface of head and abdomen naked or the latter plated exclusively on its anterior portion, absence of ridges on head and trunk, and caudal-fin lobes relatively similar in length. The new species further differs from the sympatric H. chrysostiktos by having seven branched dorsal-fin rays instead of 10-11 and represents the eleventh siluriform species endemic to the rio Paraguaçu basin.

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