127 



sometimes almost effiiced ; so has the hand, but here it often is even more 

 inclined to be effaced ; the inner angle of the carpus is spiniform ; the fingers 

 are pointed, moderately stout, and as long as, or a little longer than, the palm ; 

 though the teeth are not quite regular, none of them is enlarged to any 

 striking extent ; in the larger cheliped the palm is nearly as high as long, and 

 the fingers when closed gape a little at base. 



Legs moderately stout, the 2nd (longest) pair are about as long as the 

 chelipeds ; the dactyU are particularly long and slender, considerably exceeding 

 their propodites ; the longer propodites are about twice as long as broad. 



This very well-marked species is rather variable in the breadth, and to a 

 less extent in the convexity, of its cartxpace. At first I separated, without 

 hesitation, two varieties ; but after an attentive examination of every specimen, 

 I fomid that these supposed varieties could not be supported. Wood-Mason, 

 who had seen only three specimens, had named one of them with a narrower 

 carapace Telphusa mi.crops. 



The following table shows the variation in the dimensions of the carapace, 

 expressed in sixteenths of an inch. 



Average adult male 

 Very large adult male . 

 Average adult female . 

 Very large adult female 

 Gigantic female . 



Length. 

 16 

 19 

 17 

 20 

 24 



Breadth. 

 20 

 25 

 22 

 2.5 

 30 



Depth. 

 9 

 12 

 10 

 12 

 13 



6959 

 3 ■ 



1752 1768 



Travancore. 

 S. India. 

 Trivandrum. 



F. Beddonie. 

 Travancore Museum. 

 Travancore Museum. 



10 



Madathoraj', Travancore. N. Annandale. 



Shastancottah, near Quilon. N. Annandale. 



1 9- 



■2 6,19- 



■2 6. 



1 <?, 1 ?■ 



/9 (J 5 8 ? (including 

 \ types). 



