124 



Abdomen largish, middle plate of tail with two pairs of small spines, 

 the first pair beyond the middle. 



This genus is allied to Pontonia, Latreille, but may be distinguished 

 at once by the foiegoing chai-acters. 



Alope PALPALis, White, List of Crust. in Brit. Mus. p. 75. 

 The tail has a pinkish hue. 

 Hab. New Zealand. From the coUection of Mr. Earl. 



Family Erichthid^. 

 Alima aphrodite, White. 



Carapace somewhat narrowed in front, deeply sinuated beliind ; 

 the frontai horn not quite the length of the carapace ; the posterior 

 angles of carapace not much extended. Abdomen more than twice 

 the length of the carapace, exclusive of frontai horn ; penultimate 

 joint of abdomen -vvith two spines in the middle behind ; middle lobe 

 of tail notched in the middle with a gentie sinuation between the 

 notch and the posterior angle, which is very sharp ; the posterior 

 edge is furnished with many short regularly placed teeth, giving it a 

 fringed appearance ; outer lobes of tail \vith the middle appendage 

 prolonged into a sharp spine. Anterior pair of legs quite simple. 



Hab. South Seas. Antarctie expedition. 



Order AMPHIPODA. 



Family Gammarid^. 



Ephippiphoea. 



Head rather large ; antennse distant from each other, the upper 

 pair Avith the basai joints very thick and corneous, inserted in a deep 

 notch in front of head ; two setae at the end of each, the outer the 

 thicker. Lower pair of antennse vvith the basai joint somewhat elon- 

 gated and furnished \vith hairs. 



Body much compressed, the lateral appendages on the first eight 

 joints very large, and nearly concealing the legs ; the appendage of 

 the fourth joint much dilated behind at the end ; eighth to eleventh 

 joints slightly keeled on the back ; appendages of the three lašt joints 

 of the abdomen longish, with short spines on the edge behind. 



A genus allied to Orchestia and Talitrus. 



Ephippiphora Kroyeri, White, List, p. 130. 



The body is very highly polished, the edges of the segments behind 

 somewhat tinged vvith yellovv ; the legs and caudal appendages 

 slightly brovvnish. 



Hab. Van Dieraen's Land. 



Named as a small compliment to the very eminent Danish natu- 

 ralist, ■vvhose researches among the less studied orders of Crustaceae 

 are so \vell developed in his pubHshed but not easily accessible works. 

 1 regret that, excepting a fe\v foliated platės of the large ' Voyage 



