A new species of the gobiid fish Trimma from the Western Pacific and Northern Indian Ocean coral reefs, with a description of its osteology

Zootaxa ◽  
2003 ◽  
Vol 218 (1) ◽  
pp. 1
Author(s):  
RICHARD WINTERBOTTOM

A new species of the genus Trimma is described. Trimma annosum is characterized by the presence of scales in the predorsal midline, non-elongate spines in the first dorsal fin, and a moderate interorbital trench. The fifth pelvic-fin ray is branched dichotomously once and is 40-65% the length of the fourth. When alive, Trimma annosum is bluish grey with 3 or 4 rows of large yellow blotches on the head and body. In addition to the northern Indian Ocean where it is apparently rare, the species is distributed eastward throughout Indonesia and the Philippines to China, Micronesia and Fiji. The osteology of this species is described and illustrated in some detail to form the basis for a series of phylogenetic studies of Trimma currently being undertaken.

Zootaxa ◽  
2012 ◽  
Vol 3523 (1) ◽  
pp. 20
Author(s):  
WILLIAM F. SMITH-VANIZ ◽  
K. K. BINEESH ◽  
K. V. AKHILESH

A new species of jawfish, Opistognathus pardus, is described based on a single specimen, 98.8 mm SL, recently collectedfrom the Western Indian Ocean off Quilon (Kerala), India. The combination of a rigid maxilla without flexible lamina pos-teriorly, a unique color pattern in which most of the head is covered with small, irregular-shaped, dark spots, dorsal-finrays XI, 11, and the outermost segmented pelvic-fin ray tightly bound to adjacent ray, with the interradial membrane notincised distally distinguishes the new species from other congeners. This is the fourth species of Opistognathus known from the coast of India or Sri Lanka. A range extension for O. macrolepis is also reported.


Zootaxa ◽  
2021 ◽  
Vol 4915 (2) ◽  
pp. 264-272
Author(s):  
RICHARD WINTERBOTTOM

A new species of Trimma is described from the islands just off the Thailand coast near Phuket. Trimma ukkriti n.sp. lacks scales on the cheek and opercle, but has ctenoid scales in the midline of the nape, has an elongate second spine of the first dorsal fin which reaches posteriorly to between the base of the spine and the base of the 4th ray of the second dorsal fin when adpressed, 19–20 pectoral-fin rays with 6–13 branched rays in the middle of the fin, an unbranched 5th pelvic-fin ray, which is 48–67% the length of the 4th ray, a U-shaped interorbital trench with no fleshy median ridge, a poorly developed postorbital trench ending at the 5th papilla in row p (which has 6 papillae in total), and row c beneath the eye consists of 6 papillae. When live and freshly collected, the species is very similar in appearance to T. okinawae and T. readerae, with orange to red spots on the head and body. 


Zootaxa ◽  
2019 ◽  
Vol 4577 (3) ◽  
pp. 571
Author(s):  
RICHARD WINTERBOTTOM ◽  
MARK V. ERDMANN

A new species of Trimma, T. wangunui, is described from three localities in the western Pacific (Papua New Guinea, Timor-Leste and the Philippines). It belongs to a small group of species with scales in the predorsal midline, no scales on the cheek or the opercle, all pectoral fin rays unbranched, and a branched fifth pelvic fin ray. It differs from other species in this group in having an elongate second spine of the first dorsal fin which reaches to the bases of the 2nd–8th second dorsal-fin rays when adpressed, in having yellow bars on the head, and in the presence of vertically elongate yellow spots on a brown body when freshly collected. 


Zootaxa ◽  
2018 ◽  
Vol 4531 (1) ◽  
pp. 95
Author(s):  
HARALD AHNELT ◽  
MICHAEL SAUBERER

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. 


Zootaxa ◽  
2016 ◽  
Vol 4208 (5) ◽  
pp. 474 ◽  
Author(s):  
ARTEM M. PROKOFIEV ◽  
OFER GON ◽  
PETER N. PSOMADAKIS

A new species of Neobathyclupea is described from two specimens collected off Myanmar and off Socotra Island. The new species is most similar to N. malayana, but differs from it and other congeners in having jet-black coloured fins, larger pseudobranch, dorsal-pterygiophore pattern and some body proportions. Neobathyclupea malayana is re-diagnosed. Individual variations in armament of the preopercle and in the dorsal-pterygiophore patterns within Bathyclupeidae are discussed. 


2020 ◽  
Vol 18 (2) ◽  
Author(s):  
Naércio A. Menezes ◽  
Katiane M. Ferreira ◽  
André L. Netto-Ferreira

ABSTRACT A new species of the characid genus Knodus is described from the rio Aripuanã (rio Madeira basin). It can be distinguished from its congeners by its very low body depth, the presence of tri- to pentacuspid teeth on the outer premaxillary series, with the median cuspid larger than the lateral ones, the teeth of the inner premaxillary series pentacuspid, distinctly larger than those of the outer series, the maxillary teeth tri- to pentacuspid, with the median cusp slightly larger than the lateral ones, the four anteriormost dentary teeth pentacuspid, the smaller posterior teeth tri- to pentacuspid, a complete lateral line with 36-38 scales, 3 longitudinal scale series from pelvic fin origin to lateral line, and 11-12 circumpeduncular scales. The new species is also compared to incertae sedis species of ‘Bryconamericus’ from northern South America since phylogenetic studies suggest a closer relationship of those species with Knodus.


Zootaxa ◽  
2006 ◽  
Vol 1331 (1) ◽  
pp. 55 ◽  
Author(s):  
RICHARD WINTERBOTTOM

Two new species of the gobiid fish genus Trimma are described. Both possess scales in the predorsal midline, have interorbital and postorbital trenches, and lack scales on the opercle. Trimma anthrenum is characterized by an unbranched fifth pelvic fin ray and an almost monochromatic color pattern. When alive, it has a yellow body, and the iris has a pair of blue and black triangles with their bases against the anterior and posterior margins of the pupil (giving the pupil a slit-like appearance), the posterior triangle continues anteroventrally around the pupil margin. Preserved specimens have a very finely outlined diamond pattern across the dorsal half of the body, which otherwise exhibits very few melanophores or chromatophores, a concentration of pigment on the top of the pectoral base, with little pigment on the base itself, a short line of melanophores just above the opercle, and strong basal black bands in the dorsal and anal fins. The species is currently known from Fiji and Tonga. Trimma preclarum is characterized by an elongate second and third dorsal spines and a fifth pelvic ray that may or may not be branched (depending on locality). When alive, Trimma preclarum has three yellow stripes extending along the body, and a red to purple-red iris with four large yellow spots. Preserved specimens have a finely outlined diamond pattern across the dorsal half of the body, and a diffuse, attenuating band of pale brown chromatophores over the abdomen which fades out above the anal fin. The species has been found at Fiji, Palau, Solomon Islands and Papua New Guinea, with underwater photographs from Saipan.


1984 ◽  
Vol 62 (4) ◽  
pp. 695-715 ◽  
Author(s):  
Richard Winterbottom

The genus Trimma contains 17 nominal and 13 valid species. Five of these are here reported from the Chagos Archipelago: T. eviotops, T. macrophthalma, T. mendelssohni. T. nauclei, and T. taylori. An additional 7 species arc described as new and another is described but not named, for a total of 13 species known from these islands. The biogeographic affinities of Chagos species of Trimma appear to lie with the western Indian Ocean rather than the western Pacific, but the evidence is weak because of the lack of knowledge of the Pacific Trimma fauna.


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