17S A. Alcock — Carcinolngical Fauna of India. [No. 1, 



very slightly so from side to side; the regions, except the gastric, little 

 defined. 



Antero-lateral borders long, strongly arched, cut into four teeth ; 

 posterolateral borders slightly shorter than antero-lateral, convergent ; 

 posterior border short. 



Front narrow, less than a fifth the greatest breadth of the carapace, 

 rather prominent, almost horizontal, cut into two prominent lobes, the 

 outer angle of each of which forms a distinct tooth. 



Orbit with the three grooves near the outer angle well marked : 

 inner orbital angles — both upper and lower — well pronounced. Eyes 

 on short thick stalks. 



The side edges of the front are not turned down and the short 

 basal antennal joint does not nearly reach the front, so that the cavities 

 of the orbits and antennules are not properly separated : the next antennal 

 joint just reaches the front, and the long antennary flagellum stands in 

 the orbital hiatus. The antennules fold nearly transversely. 



The anterior edge of the merus of the external maxillipeds is 

 oblique and a little sinuous but not excised. 



The ridges of the endostome, defining the expiratory channels, are 

 complete, but low and faint. 



Chelipeds massive, a little unequal in both sexes ; fingers stout, 

 pointed, not hollowed. 



Abdomen of male singularly broad, all seven segments distinct. 



101. Menippe rumphii, Fabr., v. Martens. 



Cancer rumphii, Fabr., Eat. Syst. Suppl. p. 336 : Herbst, Krabben, III. i. 63, 

 pi. xlix. fig. 2. 



Menippe rumphii, v. Martens, Archiv. fur Naturges. XXXVIII. 1872, p. 88 : 

 de Man, Journ. Linn. Soc, Zool., XXII. 1887-88, p. 36 : Henderson, Trans. Linn. 

 Soc, Zool., (2) V. 1893, p. 363. 



Pseudocarcinus bellangeri, Milne Edwards, Hist. Nat. Crust. I. 409, pi. xiv lis, 

 fig. 15. 



Menippe bellangeri, Heller, Novara Crust, p. 15 : Muller, Verh. Ges. Basel, VIII. 

 1886, p. 474. 



Gastric region distinct and fairly distinctly subdivided into three 

 lobes; between it and the front are four pimple-like tubercles standing 

 in a square. Two low indistinct somewhat granular elevations, nearly- 

 parallel with the curve of the antero-lateral border, traverse either 

 branchial region ; the first, which is the more distinct, can generally be 

 traced across the gastric region also. The surface of the carapace is 

 finely pitted antero-laterally, but elsewhere is smooth. 



The front, which is not quite a fifth the greatest breadth of the 

 carapace, consists of two prominent round-pointed lobes, outside of 



