This paper presents size structure by sex and length-length relationships for Carcharhinus falciformis Sphyrna lewini caught an artisanal fishery in the Gulf of Tehuantepec, Mexico. According to a local processing practice this fishery, when sharks are landed, their jaws removed but not heads. The orbit-fork length was evaluated as basis estimating total length. A good fit (r2 > 0.9) linear ...

A new species of pseudamine cardinalfish, Pseudamiops springeri, is described from five specimens collected in the Red Sea. It may be distinguished from the four known species of Pseudamiops in having 13 pectoralfin rays, pseudobranch with 2-4 filaments, no canine teeth on the vomer, anterior nostril with a conspicuous skin flap and genital opening flanked by two slender papillae. Pseudamiops s...

Abstract Thirteen Chondrichthyes fish were caught in the current study, belonging to 12 genera and (6) orders representing (8) families from January 2018 December 2018. The Dasyatidae family represented highest number of species, by five species: Dasyatidae, Carcharhinidae, Hemiscylliidae, forming 74.74% total individuals. results relative abundance showed that three Brevitrygon walga, imbricat...