288 



DEC A POD A. 



MACROURA. 



PALJEMONIDJE. 



CRANCffS HIPPOLYTE. 



Ilippolyte Cranchii. Leach. 



Specific diameter. Rostrum short, incurved at the base, with three teeth 

 above, the apex emarginate, bidentate, the upper tooth the longer ; beneath 

 unarmed. 



Ilippolyte Cranchii, LEACH, Malac. Brit. t. xxxviii. f. 17-21. EDW. Hist. 



Crust. II. p. 37G. COUCH, Corn. Faun. 



THE carapace is short and rounded ; the rostrum short, 

 raised, and somewhat abruptly incurved at the base, 

 where it is broad, and armed with three conspicuous teeth ; 

 the apical portion straight, bifid at the extremity, the 

 lower tooth shorter than the upper; the inferior edge is 

 short, and without any tooth; there is no tooth above the 

 orbit. The scale of the external antenna? extends to more 

 than half the length of the filaments of the internal, and 



