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 



