452 6. 0. SARS. 



The anterior pairs of coxal plates are comparatively large and broad, 

 being considerably deeper than the corresponding segments. The 1st pair 

 are not at all expanded distally and, like the 2 succeeding ones, obtusely 

 truncated at the tip, without any marginal bristles. Tlie 4th i)air are of con- 

 siderable breadth, and have the posterior expansion transversely truncated. 



The epimeral plates of the mctasome are of moderate size, and the last 

 2 pairs nearly rectangular. 



The urosome is quite smooth, without any spines or dorsal projections, 

 having only at the end of each segment a few small hairs. 



The eyes are of middle size and oblong oval in form, with dark pigment. 



The superior antennae are not very much elongated, scarcely exceeding 

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

 diminishing in size;. The flagellum does not excecid the peduncle in length, 

 and is composed of about 16 articulations. The accessory appendage is com- 

 l)aratively small, not attaining the length of the last peduncular joint, and 

 is only composed of 3 articulations. 



The inferior autennsB are a little shorter than the superior, and are 

 somewhat more densely setiferous. The flagellum does not attain the length 

 of the last 2 peduncular joints combined. 



The gnathopoda of the female, as in tlie preceding species, are rather 

 unequal in size, the posterior ones (fig. 14) being much the stronger, with 

 the propodos more than twice as large as that of the anterior ones (fig. 13). 

 The palm in both pairs is rather oblique, and its defining angle very slight, 

 though armed in the usual manner. 



The pereiopoda are not very slender, and are remarkable for their poor 

 supply of spines or bristles, for which reason they at first sight appear 

 nearly naked. The basal joint of the antepenultimate pair (fig. 15) is roun- 

 ded quadrangular in form, being about as broad as it is long, and hav- 

 ing the iufero-posteal corner produced to a short rounded lobe. That of the 

 penultimate pair (fig. 16) has the infero-posteal corner not at all produced, 

 and on this account exhibits a more triangular form. The basal joint of the 

 last pair (fig. 17), as usual, is considerably larger than that of the 2 pre- 

 ceding pairs, foiming postei'ioi'ly a rather broad expansion, which is pro- 

 duced below to a projecting rounded lolie. The posterioi' edge of tiiis joint 

 is but slightly crenulated, and is provided in its inferior half with a few 

 very small iiairs. 



The last pair of uropoda (fig. 18) are of moderate size, and have the 

 outer ramus rather broad, sublamellar, and about twice as long as the l)iisal 

 pait. It is fringed all round with slender setaj, and has moreover on the 

 outer edge, 2 fascicles of spines. Its terminal joint is rather small, but dis- 



*B8.-MaT. exp. 282. }2 



