NORTHERN STONE-CRAB. 



165 



DEC A POD A. 



ANOMOURA, 



HOMOLAD^E. 



NORTHERN STONE-CRAB. 

 Lithodes Maia. Leach. 



Specific character. Rostrum furnished with eight spines ; one above, one be- 

 neath, and one on each side at the base, two about the middle, and terminating 

 in two, which are somewhat divergent. Carapace distinctly margined, with nu- 

 merous spines longer than those on the disk. Abdomen membranaceous, with 

 crustaceous patches representing the joints ; the first and last joint entirely 

 crustaceous. 



Cancer Maia, LINN. Syst. Nat. I. 1046, 41. HERBST. I. t. xv. f. 87, p. 219. 



liorridus, PENN. Brit. IV. t. vii. f. 14, p. 7. 

 Fnachus Maia, FABR. Suppl. p. 358. 

 Lithodes arctica, LATR. Gen. Crust. &c. I. p. 40. Emv. Hist, des Crust. II. 



p. 186. 

 Maia, LEACH, Trans. Lin. Soc. xi. p. 332. Malac. Brit. t. xxiv. 



THE form of the carapace is cordate, longer than it is 

 broad, exclusive of the rostrum ; the margin somewhat 



