AMPHIPODA. 



NATATOKIA. 



CRATIPPUS TENUIPES. 485 



PODOCER1DES. 



CRATIPPUS TENUIPES. 



Specific character. Eyes small and round. Antennae subequal, one- 

 fourth the length of animal ; flagella not longer than the last joint of the 

 peduncle. Second pair of gnathopoda having the propodos narrow, not much 

 dilated. Pereiopoda slender, moderately long. Thighs not dilated. Caudal 

 appendages terminating in short rami. 



Length 5 3 n inch. 



Cratippus tenuipes. SPENCE BATE, Cat. Amph. Brit. Mus. p. 276, pi. xlvi. 

 fig. 10. 



THE eyes are round and black. The antennae are 

 not more than one-fourth of the length of the animal, 

 and are of nearly the same length and size ; the flagella 

 of each being rudimentary, and consisting of but three 

 articuli, each being smaller than the preceding, that of 

 the superior differing from that of the inferior in the 

 presence of two long auditory cilia (fig. b). The first 

 pair of legs (omitted in our figure) are long, slender, 

 and scarcely subchelate. The second pair of legs have 

 the wrist short ; the hand long, not broader than the 



