40 AMPniPOUA NORMALIA. 



nearer observation shows that the bhuk spot is confined to the 

 centre, the outer portion being white, and therefore lost to casual 

 inspection. The superior antennae are not perfect in our specimen 

 to their extreme length ; but we presume them to have reached a 

 little beyond the peduncle of the inferior. The peduncle of the 

 inferior antenna scarcely passes that of the superior ; the flagellum 

 is very long and slender, nearly the length of the entire animal, 

 and five or six times as long as the superior. The anterior gna- 

 thopoda have the propodos scarcely wider than the carpus ; the 

 palm oblique, convex, and ill-defined; dactylos short; carpus 

 short, and scarcely at all inferiorly produced. The second pair of 

 gnathopoda are about four times as large as the first ; the propodos 

 is broadly ovate ; the palm is oblique and almost straight, but not 

 well-defined — i. e. there is no marked distinction between the palm 

 and the continuous portion of the inferior margin of the propodos ; 

 it is fringed with a few equidistant solitary cilia. The four an- 

 terior coxaj are not so deep as their respective segments ; that of 

 the fifth is a little shorter. The bases of each of the tkree pos- 

 terior pairs of pereiopoda is round and smooth. 

 Length ^^-ths of an inch. 



Hab. Italy. 



9. Allorchestes Inca, n. s. (Plate VI. fig. 7.) B.M. 



Eyes obliquely oval. Superior antennae longer than the peduncle of 



the inferior. Inferior antennae not half the length of the animal ; 



the peduncle about half the length of the antennae. The first 



pair of gnathopoda having the upper and lower margins of the 



propodos nearly parallel and twice as long as broad, not wider than 



the carpus, and about three times as long. The second pair of 



gnathopoda having a largely developed propodos, very broad near 



the carpus mid tapering to a point towards the dactylos ; the palm 



occupies the entire length of the inferior margin; it is slightly 



waved tliroughout its extent, and an elevation of more importance 



exists near the base of the dactylos ; it is fiinged with equidistant 



solitary hairs throughout its length ; the dactylos has a slight 



protuberance near the middle of the inner margin, Avhich coiTe- 



sponds to the depression posterior to the lobe on the margin of 



the palm. The rest of the animal is very similar to A. Nilssonii. 



Length about ^^^ths of an inch. 



This species, for which we are indebted to Prof. Kinahan, much 

 resembles A. lurtipahna, but difi'ers in the length of the superior 

 antennae, which, in A. hirtij^ahna, are nearly as long as the inferior, 



