82 



In the following two specimens the anterior half of the gastric region is 

 covered with small sqiiamiform tubercles : — 



^ . Madatlioray, Travancore. N. Aimandale. 2 ? . 



10 •^ 



It is a pity that the good old name indica, by which this species is so 

 well known, has had to be changed ; but it is extremely unfortunate that 

 the name now chosen should be jacquemontii, because it is very doubtful 

 whether the so-called genus Paratelphusa is anything but a section of 

 Gecarc mucus, and there is already a well-known Gecarcinucus jacquemontii. 

 If Paratelphnsfi be hereafter united with Gecarcinucus, we shall want still 

 another name for Paratelphusa jacquemontii, alias Telphusa indica. 



7. Paratelphusa (Bakytelphusa) lamellifrons, Alcock. (Fig. 18.) 



This species differs from P. jacquemontii only in the following particulars, 

 females being compared (in the absence of a male) : — 



Owing to the prominence of the front, the carapace is longer, its length 

 being nearer four-tifths than three-fourths of its greatest breadth. 



The cervical groove, though very bold and deep, is much broader in 

 the lateral parts of its course, and in the neighbourhood of the lateral 

 epibranehial tooth is so broad and superficial as to be vague. 



The front in the adult female is much less than one-fourth the greatest 

 breadth of the carapace, is less deflexed, and has a thin, straight, crenulate, 

 lamellar edge, which projects much Ijeyond the epistome. 



The external or])ital tooth is very prominent and sharp, and is separated 

 from the lower l>order of the orbit Ijy a very distinct gap. 



The distance between the tip of the orbital tootli and the base of the 

 epibranehial spine forms almost half of the antero-lateral liorder of the 

 carapace. 



The lateral epiln-anchial spine is very prominent and acute, and the 

 antero-lateral margin in rear of it is hardly cm-ved. 



The epigastric and post-orliital crests on either side of the mesogastric 

 furrow form a single prominent undermined crest, as in jacquemontii ; but (1) 

 the epigastric portion is not distinguished by anything but a sHght fullness 

 l>eneath the free edge of the crest ; (2) the edge of the crest is very elegantly 

 crenulate in all its extent ; and (3) at its outer end the crest bulges forward 

 to form an undetached lobe, the convexity of which is on a level with the tip 

 of the epibranehial spine, and the base of which joins the antero-lateral margin 

 of the carapace just in front of the base of the epibranehial spine. 



The spine at the inner angle of the carpus of the chelipeds is longer 

 and more acute. 



