ACANTRODON. 1G3 



from the posterior laterals ; anterior laterals more prominent than 

 in A. crassvs. 



Measurements in mm. — Total length 20, length of carapace 10, 

 of 1st leg 19, of 4th leg 23. 



Loc. Bombay (Phipson). 



133. Acanthodon constructor, sp. n. 



5 . Colour as in A. opifex. Carapace with ocular tubercle 

 elevated in front as in A. crassus ; eyes of posterior line unequally 

 spaced, the medians a little more than two diameters apart, and 

 about one diameter from the laterals, about the same distance from 

 the anterior medians to which they are subequal in size ; the anterior 

 medians about a diameter apart, their posterior edges on a level 

 with the anterior edges of the posterior laterals. Labium with a 

 marginal row of 4-5 teeth, and some smaller ones behind them. 

 Coxa of 4th leg furnished beneath with a median longitudinal band 

 of short spinules ; tibia of 3rd leg short and thick, as wide as 

 long. 



$ . Colour as in $ , but tarsi and protarsi of legs clear yellow. 

 Eyes more compact ; posterior medians about two diameters apart. 

 First leg with tibia incrassate, armed externally with 8-10 spines, 

 internally in its basal half with 3 spines, and at the apex with 

 2 spurs, the proximal conical, the distal stout, but with the apex 

 pointed and directed forwards and upwards ; protarsus slender, 

 concave in its basal half, armed with many spines below, and with 

 a submedian conical spur. Tibia of palp inflated, furnished 

 distally on the outer side with a cavity bordered above by a 

 complete semicircle of short spines ; tarsus with a conical external 

 process : spine of palpal organ broad at base, slender and bent 

 distally with blunt tip. 



Measurements in mm. — $ . Total length 19, carapace 8, 1st leg 

 14, 4th leg 17. d. Total length 12, carapace 6, 1st and 4tb 

 legs 20. 



Loc. S. India : Chingleput (JamLunathan) ; Yercaud in Shevaro 

 Hills {Henderson). 



134. Acanthodon fortis, sp. n. 



$. Eesembling A. constructor, but much larger; and with the 

 eyes of the posterior line widely and subequally spaced, the 

 medians nearly three diameters from each other and from the 

 laterals; anterior medians large, less than a diameter apart; 

 posterior medians about their own diameter from the anterior 

 medians; posterior laterals large, elliptical, Bel tar forwards, so that 

 their anterior rims are on a level with the centres of the anterior 

 medians. 



Measurements in mm. — Total length 32, carapace 14, 1st leg 20 

 4th leg 32. 



Loc. India (Godfry, type ; Ilardiviclce). 



ii 2 



