318 



DECAl'ODA. 



MACROUIiA. 



I'ENJKA&M. 



Penams Caramote. Desmar. 



Specific character. Filaments of the internal antenna? shorter than the last t\vo 

 articulations. Thorax trisulcate posteriori)' ; rostrum bent downwards, above 

 multidentate. 



Al/ilieetis caramote 

 1 'f nee-us 



trisulcatus 



Risso, Crust, de Nice, p. 20. 



DESMAR. Consider, surles Crust, p. 2'25. Risso, Hist. 



Nat. de 1'Eur. Mer. V. p. 57. EDW. Hist, des 



Crust. II. p. 413. 

 LEACH, Mai. Brit. t. xlii. 



THE carapace is large and somewhat ventricose ; the 

 rostrum extending to the peduncle of the internal antennae, 

 armed above with numerous (about twelve) rather strong 

 teeth, and beneath with one or two points only, the latter 

 placed a little in front of the line of the eyes ; on each 

 side of the rostrum is a crest, which is continued back- 

 wards to near the margin of the carapace, thus forming 

 a deep groove on each side of the median crest of the 



