TELPHUSA U-aiCANA. J.^l NOTE XXVII. CARCIFOLO&ICAL STUDIES IN THE LEYDEN MUSEUM. BY Dr. J. G. DE MAN. N». 1. Telphusa a/ricana Alph. Milne Edwards. Telphma afrkana, Alph, Milne Edwards, Nouv Arch du Museum, T. V, pag. 186, pi. XI, fig. 2 and 2.. ' The Museum has lately received a fine series of nine speci-mens of vanous ages of this species which was shortly de-scribed by Mr Alph. Milne Edwards after a very young mdivKlual, so that 1 am enabled to give a more complet? descnp faon of th.s form. As regards its external appear-ance, this species very much resembles the Indian Pa-ratdphu^a tridentata Milne Edwards, so that one is almost inclined to refer it to the genus Paratdphusa. Carapace much broader than long, flattened, with the granular antero-lateral margins arched and armed with two equal epibranchial teeth behind the acute ext«,rnal iltk hoT k f ;'V''^ ^''**™' ^P'-'-^hial tooth a little shorter than that of the external orbital angle, upper surface of the carapace punctate; cervical groove rather deep, some obhque rugose lines near the antero-lateral and postero-ateral margins of the carapace. Post-frontal ridge very distinct straght, interrupted in the middle, but running uninterruptedly down to quite near the posterior epibran Note, irom the LeyUen Mu.eum, Vol. lU. 8
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