Two brief midwater trawl surveys were conducted at depths of 250–1000 m in the Gulf of Alaska in April 2007 and March 2008, during which several species were recorded for the 1st time from this region. In this report we note the 1st records of Maulisia argipalla, Pachystomias microdon, Lestidiops ringens, and Scopelengys tristis from the Gulf of Alaska, the 1st records of Argyropelecus lychnus ...

An integrative taxonomic analysis of species in the colubrid genus Lycodon Fitzinger, 1826 recovered two new syntopic L. rufozonatus complex from imperiled Song Giang River valley Khan Hoa Province, Southern Vietnam. Although truongi sp. nov. and anakradaya are syntopic, they not particularly closely related can be differentiated each other all on basis meristics, morphometrics, color pattern, ...

Abstract A new species of Sternopygus is described from the Orinoco River Venezuela using traditional methods morphometrics and meristics, micro-computed tomography (micro-CT) imaging for osteological analysis. The readily separated all congeners in having broad, vertical pigment bars that extend mid-dorsum to ventral margin pterygiophores. similar color pattern, characterized by subtle differe...

As currently understood Atractus latifrons is widely distributed in South America, occurring from Suriname to the east of the Andes in Bolivia. Throughout this widespread distribution, at least three distinct color patterns were previously reported in the literature. Here, we test whether quantitative variation and qualitative distribution of morphological characters are correlated with any col...

The neotropical cichlid genus Astronotus currently comprises two valid species: A. ocellatus Agassiz, 1831 and A. crassipinnis Heckel, 1840. The diagnosis is based on color pattern and meristics counts. However, body color pattern is highly variable between regions and the meristic counts show a considerable overlap between populations differing in color patterning. They do not represent true s...

The basic data needed to support reservoir management includes information on fish diversity. Research has been conducted determine the diversity, phenetic relationship, and simple identification keys for Cyprinidae from Sempor Reservoir, District, Kebumen Regency, Central Java Province. study was carried out in period August 2020 February 2021 with a survey method, sampling using purposive ran...