34 ASTACUS. LOBSTER. Class V. 



all ciliated ; body slender, compressed, smooth, 

 of twelve joints; claws, two pairs of equal 

 size, imperfect ; legs ten ; caudal fins two pairs, 

 ends forked. Length half an inch. Color 

 reddish. 



29. Falca- Lin. Tr. ix. 100. t. h.f. 2. 



TUS. 



00 -Jange . # j^ ^.^ £ Qur antenna ciliated beneath ; body 

 slender, smooth, compressed, of twelve joints ; 

 claws, two pairs of very unequal size, imper- 

 fect, the second pair the larger, and spinous at 

 the edges ; legs ten, the two anterior pairs very 

 minute. Caudal fins three pairs, subulate. 

 Color varied crimson. Length half an inch. 



30 Rhom- Liu. Tr. vii. 65. t. 6.f. 1. 



BOIDAL1S. 



* . L. with two antenna not twice the length of 

 the snout ; front broad, contracted into a 

 strait subulate snout; eyes remarkably pro- 

 minent and reticulated ; thorax somewhat ob- 

 tusely quadrangular, with five large tubercles; 

 claws two, equal, perfect, rather large ; legs 

 eight, subulate, with a spine beneath on the 

 first joint of each. Color olive green. Length 

 a quarter of an inch. 



Found among sertularia. 



