450 



The anterior pairs of coxal plates resemble iu shape those in G. hamo- 

 haplies, being soniewliat deeper in the female tlian in the male. 



The epimeral plates of the mctasome are well developed, and the last 

 pair acutely produced at tlie lateral corners. 



The eyes are of moderate size, oblong oval iu form, and somewhat ob- 

 liquely disposed. The pigment is generally dark, but in some specimens it 

 appeared considerably lighter. 



The superior antennae are very slender and elongated, exceeding half 

 the length of the body, and with the joints of the peduncle successively 

 diminishing in size. The flagellum is fully twice as long as the peduncle, 

 and is divided into numerous short articulations. The accessory appendage 

 (see fig. 2) is very narrow, thread-like, and fully twice as long as the last 

 l)edunc,ular joint. It is composed of 7 articulations of equal length. 



The inferior antenme are considerably sliorter than the superior, but 

 more strongly built, especially in tlie male, and are provided with dense 

 fascicles of bristles along the posterior edge of both the peduncle and the 

 flagellum. 



The gnathopoda exhibit a similar structure to that in G. hcemobaphes, 

 and, as in that species, are rather uneipially developed, the posterior being 

 much tlie stronger. In the female this i)air (tig. 7) have the propodos nearly 

 twice as large as in the 1st pair (fig. (3), thougli exhibiting a similar form, 

 the palm being somewhat oblique, and defined below by au obtuse corner 

 armed witli ;i iiuiiibcr (if strong spines. In the male l)oth pairs ai'e rather 

 unlike, and still more unequal in size than in the female. The anterior ones 

 (fig. 4) have the propodos of moderate size, and oblong oval in form, with 

 the palm very obii(jiie. In the posterior ones (fig. 5) the propodos is of very 

 considerable size, and strongly tumt'fied iu its proximal part, having numer- 

 ous dense fascicles of bristles along the inferior edge. The palm is obliquely 

 arcuate, and defined below by a rather i)rojecting corner armed with 3 strong 

 spines. The dactylus in both pairs is much coarser than in the female and 

 strongly curved. 



The pereiopoda are comparatively mucii more slender than in G. hcemo- 

 baphes, and have their outer part edged with fascicles of short spines. The 

 basal joint of the 3 posterior pairs is conspicuously narrower than in the 

 said species, though exhibiting a similar mutual relationship as to size. In 

 the last pair (fig. 8) this joint is of an oblong quadrangular form, with the 

 infero-])Osteal corner produced to a short, narrowly rounded lappet; its 

 posterior edge is nearly straight and very distinctly serrated. 



The last pair of mopoda (fig. 9) are very much elougated, being fully 

 as long as the urosome, and having tlie outer ramus narrow, sub-lineai', and 



•frua.-MuT. cTp. 380. jO 



