LA.BOCHIRUS. 107 



depressed posteriorly, and bearing a pair of marginal impressions ; 

 middle of 2nd sternum pale, transversely grooved, with small 

 median tubercle ; the rest of the sterna polished, punctured. 

 GhelcR with coxa coarsely punctured ; trochanter granular, armed 

 below with a bifid tooth and above with 4 internal and 1 

 anterior tooth ; femur and tibia coarsely granular above, below 

 and externally, each armed below on the inner side with a tooth ; 

 tibia considerably thicker than femur ; the apophysis long and 

 slender, its hinder border straight, unarmed, its anterior border 

 also nearly straight, depressed towards the extremity, which is 

 acute and armed here and at the base with close-set teeth ; hand 

 smoother than tibia, toothed below ; immovable finger short ; 

 movable finger longer, curved. 



$ with chelae shorter and not distally incrassate, the hand 

 narrower than the tibia and not wider than the femur; tibial 

 apophysis of normal form, its anterior edge lightly convex and 

 serrate throughout its length, posterior edge also armed with three 

 teeth, the two edges tapering gradually to a sharp point. First 

 abdominal sternum coarsely punctured in the middle and furnished 

 with a pair of shallow impressions ; 2nd not rnesially grooved and 

 not furnished with a small tubercle. 



Total length up to 55 mm. 



Loc. North-eastern India : Assam, Sylhet (Stainsforth, Bow- 

 ring, Austen, Cambridge); Khnsi Hills, Sadiya (Godwin- Austen}; 

 Cachar. 



(lenus LABOCHIEUS, Pocock. 



Labochirus, Pucock, A. M. N. H. (6) xiv, p. 132, 1894; Kraep. 

 Abh. Ver. Hamb. xv. p. 42. 1897 ; id. Tien:, Scorn, etc. p. 227, 

 1899. 



Carapace with area between median and lateral eyes not crested? 

 rounded and sloped to the inferior edge ; median ocular tubercle 

 low. Maxillary process armed with a strong spiniform tooth on 

 its inner edge. Female with carapace weakly beaked in front ; 

 first abdominal sternum not inflated : chelae short, normal, the 

 maxillary process short ; tibial apopbysis short, subtriangular, and 

 strongly denticulated on both edges. Male with carapace strongly 

 beaked* in front; first abdominal sternum swollen; chelae very 

 long, maxillary process slender and long, but very variable in 

 length ; tibial apophysis modified, not subtriangular, and at most 

 denticulated at the tip. 



Type, L. proboscideus, Butler. 



Distribution. Ceylon and the Malabar coast of South India. 



Synopsis of Indian Species. 

 Females. 



a. First abdominal sternum with broad median 

 longitudinal depression, and a low ridge on 

 each .side in front L. probvscidevs, p, 108. 



