122 



HuiJBAnnim.K. 



carapace armed with a short rostrum, the basal width of which is 

 greater than its length. On each side of its anterior portion there is 



a pale irregular-shaped patch representing 

 an eye, but showing no traces of a distinct 

 lens. Ten/a, like the carapace, coriaceous, 

 each furnished with a pair of symmetrically 

 disposed bristles, one on each side of the 

 middle, the 8th and 9th also with a bristle 

 on the posterior lateral angle, the median 

 bristles on the 9th much farther apart than 

 those of the 7th. Sternawith symmetrically 

 disposed bristles ; bristles on the posterior 

 abdominal somites very long. Chela' of the 

 same general form as in the female of 

 S. crassicaudatus, but weaker, being rela- 

 tively both shorter and thinner, the femur 

 especially being not nearly so thick ; 

 trochanter not strongly produced distally, 

 its distal angle rectangular. First leg 

 much longer than in /$'. crassicaudatus, 

 longer than body, when the appendage is 

 extended the tip of its femur almost 

 reaches the tip of the extended chela ; tarsal 

 segments not very different from those 

 Length of body about 4 or 4-5 mm. ; of 



i; 



c. 



Fig. 39. 

 Trithyreus suboculatus. 



A. Chela. 



B. Posterior plate of 

 carapace : a, sutural 

 line. 



C. Caudal skeletal plate. 



of S. crassicaudatus. 

 1st leg about 6'5 mm. 



Log. Ceylon: Punduloya (Green). 



103. Trithyreus grassii, Thorell, Ann. Mm. Genova, xxvii, p. 554, 

 t. 5, lip-. 1, 1889 ; Kraep. Abh. Ver. Hamb. xv, p. 53, t. ii, fig. 58 b, 

 1897 (Tripeltis); id. Tierr., Scorp. etc p. 235, 1899 (Trithyreus). 



Colour of body brown above : legs paler. No trace of eyes on 

 carapace; chehe oue and a half times as long as carapace; tro- 

 chanter with strongly convex inferior border, produced anteriorly 

 into an acutely angular process, of which the inferior border is 

 convex and the superior concave. First leg nearly twice as Long 

 as body. Other characters apparently much as in the preceding 

 species. Length of body about 7 mm., of 1st leg 13. 



Loc. Burma : Teinzo (Fed). 



104. Trithyreus cambridgii, Thorell, Ann. Mux. Genova, xxvii. 

 p. 559, 1889; Kraep. Abh. Ver. Hamb. xv, p. 53, L897 (Tripeltis) ; 

 id. Tierr., Scorp. etc. p. 234, 1899 (Trithyreus). 



Closely resembling T. grassix, of which this is perhaps the young. 

 Colour paler, more yellowish green ; carapace furnished on each 

 side with a round eye-spot ; chela only a little longer than 

 carapace. First leg (according to figure) shorter than body. 

 Length about 3 - 5 mm. 



Loc. Burma : Prorne (/'<«). 



