28 



la the young the carapace is quite spherical, with its edges spiny and its 

 surface closely and crisply granular. 



Pabilia, Wood-Mason. 



Parilia, Wood-MaBOn, Ann. Mag. Nat. Hist., March 1891, p. 264 : Alcock, J. A. S. B. Vol. LXV. pt. 2, 1896, 

 p. 198. 



Carapace strongly convex, especially posteriorly, somewhat oval trans- 

 versely, with three spines on the posterior margin ; the surface finely granular, 

 the regions fairly well-defined. 



The front is narrow and bidentate, and the epistome projects well beyond 

 it, the epistome being, for an Oxystome, deep — as in Bandallia and Nucia. 



The eyes are small, and the orbits imperfect, for not only have they two 

 fissures (not mere sutures) in the roof, and a broad fissure in the outer wall, and 

 a broad gap communicating with the antennary and antennulary fossae, but their 

 upper-outer wall is deeply emarginate. 



The antennules fold a little obliquely. The antennae are distinct, and stand 

 in the gap at the inner canthus of the orbit, which they do not nearly fill. 



The buccal cavern is considerably broader than long, owing to the enormous 

 width of the afferent branchial channels and of the foliaceous expansion of the 

 exognath that covers them : the outer edge of the latter is strongly curved : the 

 triangular merus of the endognath is very nearly as long as the ischium, 

 measured along the inner edge. 



The chelipeds in the adult male are several times the length of the carapace, 

 and are slender, though more massive than the legs : the hands are several 

 times the length of the stoutish fingers. 



The abdomen in the male consists of five distinct pieces : in the female it 

 consists of seven, but the 4th, 5th and 6th are not separately movable. 



Branchial chambers greatly inflated, especially posteriorly : branchiae large, 

 and six in number on either side. [Brood-pouch of the female very large and 

 communicating with the branchial chamber on either side, at base, by a foramen.] 



Parilia alCOcUii, Wood-Mason. Plate IV. fig. 1. ^ 



Parilia alcockix, Wood-Mason, Ann. Mag. Nat. Hist., March 1891, p. 264, and III. Zool. ' Investigator,' Cmst. 

 pi. V. figs. 3, 3a J : Alcock and Anderson, J. A. S. B. Vol. LXIII. pt. 2, 1894, p. 177 : Alcock, J. A. S. B. Vol. LXV. 

 pt. 2, 1896, p. 198. 



Carapace about seven-eights as long as broad, transversely oval, but with 

 the anterior margin — between the outer angles of the afferent branchial channels 

 — perfectly straight. 



The antero-lateral margin is broadly indented at the junction of the hepatic 

 and branchial regions, and bears four denticles ; and there are three denticles on 

 the posterior margin, the middle one of which is the smallest : just above the 



