Abstract

MARQUEZ-FARIAS, Juan Fernando  and  LARA-MENDOZA, Raúl E.. Notes about the reproductive tract of the chimaera, Hydrolagus melanophasma (Chondrichthyes, Holocephali), from the west coast of Baja California, Mexico. Hidrobiológica [online]. 2014, vol.24, n.2, pp.151-158. ISSN 0188-8897.

In this study we describe for the first time the reproductive tract morphology and we provide meristic data of the chimera Hydrolagus melanophasma from three specimens caught (two females and one male) on the west coast of Baja California. The three specimens were adults. The two females measured 112.6 cm TL and 117 cm TL, and weighed 5555 g and 6620 g, respectively. These had a pair of ovaries and oviducal gland well developed. Ovarian oocytes diameter ranged 1.8-15.8 mm. The size of male was 105.6 cm TL and weight of 4640 g, and presented triffid claspers fully developed, elongated and calcified. Also it contained a frontal tenaculum calcified and erect of 30 mm long.

Keywords : Chimaeridae; Hydrolagus; reproduction.

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