Dipturus sp. B

M. A. Treloar, L. J. B. Laurenson & J. D. Stevens, 2006, Descriptions of rajid egg cases from southeastern Australian waters., Zootaxa 1231, pp. 53-68: 60

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Dipturus sp. B


Dipturus sp. B   (sensu Last and Stevens, 1994 as Raja sp. B   ) - Grey skate

(Fig. 4)


Found in waters off New South Wales, Tasmania, South Australia, and Western Australia. Most abundant at depths of 450-600 m, but recorded over depths of 330-950 m (Last and Stevens 1994).


Egg case medium to large, slightly rounded in shape (Table 1); colour golden, may have a green tinge. Fibroids thick, present on both dorsal and ventral surfaces; lateral keel> 9% maximum body width. Attachment fibres prominent on lateral margin; tendrils extending from posterior horns. Anterior horns slightly longer than posterior horns, horns depressed, narrow. Anterior and posterior aprons fully extended, similar in length (> 15% of BL).