AMPHIPODA. 



NATATOniA. 



GOSSEA MICRODEUTOPA. 



277 



GAMMARIDES. 



^.^fffm^> 



U M 



GOSSEA MICRODEUTOPA. 



Specific character. Superior antenna with each joint of tlie peduncle 

 gradually decreasing in length ; flagellum longer than the peduncle, and 

 having the alternate articuli distally and inferiorly produced and furnished 

 with a few cilia. First pair of gnathopoda having the propodos long-quadrate, 

 with the palm slightly convex. 



Length ^^ inch. 



Oossea microdeuto'jia. Spence Bate, Cat. Amph. Brit. Mus. p. 160. pi. xxix. 

 fig. 6. 



The eyes are tolerably large, rounded in form, and 

 black. The superior antennae are about one-third the 

 length of the animal, having the peduncle very short and 

 the flagellum tolerably long, the latter having the alter- 

 nate articuli infero-distally produced and furnished with 

 a few hairs of unequal length. The second and fourth 

 articuli likewise bear short, broad, trumpet-mouihed 

 auditory cilia. The first pair of legs have the hand long- 

 quadrate, the palm is slightly rounded. In the second 

 pair the hand is more slender than in the first, and the 

 palm is shaped and defined by a small spine. The 

 walking legs are all nearly of the same length. The 

 caudal appendages are long and slender, the last having 

 the peduncle extending further than the extremity of 

 the central caudal-plate. The branches are of one length, 

 styliform, and furnished upon their upper margins with 



