16 STOLIOZKA :— TERTIARY CRUSTACEA. 



riorly opposite the median part of the cardiac, lohe on each side provided with a sharp, 

 spinose tubercle, placed somewhat below the edge. Eront very narrow, with the 

 margin swollen, divided by a distinct groove in the middle, slightly projecting ; 

 it is confluent with the supra-orbital edge, which is almost shorter and less tumes- 

 cent ; each is very slightly emarginate at the edge itself. 



The antero-lateral margin is considerably longer than the distance between 

 the outer angles of the orbits, each of which is armed externally with a short spiny 

 tubercle, margined above and below by a short groove. The edge of the margin 

 itself is sharp, with numerous rather fine serrations : one tubercle, distant two-thirds 

 the length of the antero-lateral margin from the orbit, equals in size the outer 

 orbital spine, while the costal tubercle is conspicuously the largest, depressed, 

 and sharply pointed. Postero-lateral margin somewhat shorter than the antero- 

 lateral, high, flfittened, smooth at the junction ; the posterior edge provided 

 with a flexuous ridge. Lower edge of orbit short, slightly projecting in the middle, 

 internally angular. Basilar joint of the antennulse almost larger than the eye- 

 peduncle and filling out the inner side of the orbit; auditory tubercles and 

 basilar joint of antennae very small, scarcely distinguishable. Epistome thin, 

 as long as the front, with a sharp projection in the median anterior front, 

 opposite the inter-antennulary ridge, but not united with it. Sub-hepatic reo-ion 

 narrow, pleural region broader, very tumid, more or less projecting, separated 

 from the former by a broadish, deep groove, which becomes about the middle 

 confluent vsdth a thin ridge separating the outer from the inner sub-branchial 

 regions. Third endopodlte joint obtusely and narrowly truncate at the end, very 

 slightly curved at the outer, and straight at the inner, edge. Greatest width 

 of sternum somewhat exceeding half the width of the carapace; the sternites 

 a little broader at the end than at the base. 



The tail of the female is of equal width throughout; it appears to consist 

 of seven separate joints, but they are not very well defined in the single specimen ; 

 the first joint is shortest and smooth; the succeeding ones gradually increase 

 in length ; each has a rounded tubercle in the middle and one at either end ; these 

 tubercles, however, again become indistinct on the last joint, which is broadly 

 rounded at the posterior edge. 



In the male the tail is much narrower and comparatively longer, lino-uate ; 

 the first and second joints are the shorter and of equal width ; the third is widest 

 and united with the fourth and fifth, which become gradually narrower up to the 

 last, the posterior edge of which is narrowly rounded: all the joints are sub- 

 tuberculate along the middle and at the sides. 



None of the feet have been observed. 



Length of carapace of the largest specimen (a male) 10^ m.m., width of the 

 same 13 m.m,, height 5'3 m.nL 



Locality. —'Fvova. a ferruginous clay, apparently of nummulitic age, in Sind. 

 Mr. Wynne g,lso obtained a single specimen in a ferruginous, conglomeratic sand- 

 stone at the Saheind hill scarp, west of Egera, in Kutch. 



