CRUSTACEA FEOM KUTCH AND SIND. 7 



Orbitoides and other Foraminifera of the nummulitic series, in a stream under 

 Kootra hill, near Pipiir, Kutch. 



Nepttjnus Sindensis, Stol., PI. II, Pigs. 3 — 5, and PI. Ill, Pig. 1. 



The carapace of this species is slightly more than one-third broader than long, 

 the breadth being in proportion to the length as 16 : 10, considerably less than in 

 the last-named species. The different regions of the upper side of the carapace are 

 equally well marked in both, and it is not necessary to repeat them ; the horse-shoe 

 shaped groove, defining the meta- and uro-gastric lobes below and laterally, is deeper 

 than in N. Wynneanus. The upper and lower sides of the carapace are rather 

 coarsely granular towards the margins. The front edge has six spines, the four in- 

 terior are sub-equal, those at the inner angle of the orbit less projecting and more 

 obtuse. The width of each orbit is more than half of the front edge, the upper 

 margins have each a sub-median and a posterior incision, the lower only a posterior- 

 The nine antero-lateral spines are alternately larger and smaller, all are slightly bent 

 upward and forward ; the costal spine is the largest ; it barely, however, exceeds the 

 outer spine of the orbit by one-half of its size, while in the last-described species it 

 is doubly strong. 



The facial portion is remarkably thin, the inter-antennulary ridge thick, pro- 

 bably with an obtuse point, but certainly not projecting beyond the front margin. 

 The antennular pits are comparatively small and depressed ; the basilar joint of 

 the antennse conspicuously thickened, short, with a distinct groove between it and 

 the front margin, and with the external appendage greatly prolonged, somewhat 

 spoon-shaped, and projecting almost as far as the lower spine at the inner angle of 



the orbit. 



Of the maxillipeds, only the first and second joints of the external pair are 

 preserved ; they do not differ in any particular from those of the last species, 

 neither does there appear to be any essential difference between the chelse and the 

 ambulatory feet, as far as seen preserved. The hand itself is considerably longer 

 than the fingers, and as the inner tubercles are again exactly similarly disposed as 

 in Scylla, this character combined with the increased length of the carapace exhibits 

 a still greater relation to that genus, than is the case ia the former species. 



All the specimens examined are males, with a regularly pyramidal tapering 

 tail ; the third, fourth and fifth joints are united, but their sutures are indicated by 

 slight depressions ; the third joint is the widest. The sternum is a little narrower 

 as compared with that of the last species ; its length is very nearly one-half the 

 width of the carapace, but its greatest breadth is only a little more than two-fifths 

 of the same width. 



Locality. — In a yellowish, nummulitic limestone, from the Lukkee Hills in 

 Sind. Pour specimens and a number of fragments of chelse and ambulatory feet 

 have been for some time past deposited in the Geological Sm^vey collection. They 

 were presented by Col. (now Genl. Sir) "W. E. Baker. 



