322 AMrillPODA NOnj|AI,IA. 



1. Primno macropa. (Plate LI. %. 8.) 

 Primno macropa, Gii6rin, May, de Zool. vii. 1830, pi. 17. f. 1. 



" Supciior antennae longer than the cei)halon. Basos of the second 

 pair of gnathopoda dilated. Third pair of pcrciopoda very long, 

 more than a.s long again as the precctling, ha\'ing the carpus very 

 long and broad, the anterior margin armed with alternately one 

 long and two or three short teeth ; propodos long, slender ; dac- 

 tylos short, slender, pointed : fourth pair scarcely more than half 

 the length of the third ; carpus not dilated, having the anterior 

 margin serrated : fifth pair shorter than the fourth, slender and 

 feeble. Three posterior pairs of pleopoda foliaceous ; antepenulti- 

 mate pair pointed. Telson ovate. 



" Length ^ths of an inch. 



''Hah. Chili."— G^M^nn. 



4. ANCHYLOMERA. 



Anchylomora, Edwards, Atui. des Sc. Nat. xx. p. 394, 

 Hieraconyx, Gu6rin, Mag. dc Zool. vii. 1836 (male). 



Cephalon large, transversely ovate. Eyes occupying nearly the whole 

 of the cej)halon, but not united in the median line. Antennco in 

 one sex (male?) as long as the cephalon, in the other short, 

 rudimentary. Gnathopoda having the propoda with the inferior 

 margin directed horizontally, not subchelate. Eirst two paii's of 

 pereiopoda complexly subchelate : third pair large, robust, having 

 the bases largely dilated, pentangular ; carpus dilated, against the 

 anterior margin of which the propodos impinges : fourth pair 

 shorter than the third, not dilated: fifth still shorter. Thi*ee 

 posterior paii's of pleopoda consisting of single foliaceous mem- 

 branous plates. 



Hieraconyx appears to be the male oi Anchylomera. 



1. Anchylomera antipodes, n. s. 

 (Plate LL fig. 9, male ; fig. 10, female.) B.M. 



Female. — Animal robust. Cephalon deeper than the pereion. First 

 segment of pereion absent, fifth twice as broad as the others. 

 Superior antenna3 represented by two minute tubercles. Inferior an- 

 tennae obsolete. Gnathopoda having the propoda gradually tapering 

 both above and below to a point ; dactyla having a smaU straight 

 joint. First pair of pereiopoda ha^dng the carpus moderately broad 

 and anteriorly truncate ; anterior and inferior margins serrated ; 

 inferior margin coarsely serrated, the interdental spaces being 



