01869nas a2200241   4500008004100000245015900041210006900200300001200269490000700281520103300288653001501321653001201336653000801348653001501356653001501371653002201386653001101408653001701419653002501436100002001461700001601481856013001497       2004                        eng d00aMorphological and biological characteristics of a gravid angular rough shark (<i>Oxynotus centrina</i>) and its embryos from the Eastern Mediterranean Sea0 aMorphological and biological characteristics of a gravid angular  a105-1100 v283 aThe record of a specimen of gravid female angular rough shark, Oxynotus centrina, in the Aegean Sea is reported. It was captured in February 1999 by a commercial bottom trawl at a depth of 100 to 200 m on a muddy-sandy bottom near Kea Island. The specimen size was 69 cm in total length and 4.0 kg in weight. A total of fifteen embryos ranging from 9.0 to 11.2 cm in total length were observed. They all had a distinctive coloration of darker marks on a light brownish background. All the embryos were attached to sizeable yolk sacs but showed differences in development; some had already absorbed a significant part of yolk sac content, while others had not. All embryos had clearly formed external morphological characteristics, similar to the adult stage. No sign of clasper formation was observed, making sex identification impossible. One of the embryos was significantly smaller and malformed in the head area. A series of morphometric measurements were taken both for gravid female and embryos and compared to each other.10aAegean sea10aembryos10aMED10amorphology10aoxynotidae10aoxynotus centrina10aPisces10areproduction10areproductive-biology1 aMegalofonou, P.1 aDamalas, D.  uhttps://icgf.myspecies.info/content/morphological-and-biological-characteristics-gravid-angular-rough-shark-oxynotus-centrina