156 LIPHISTIID^E. 



Family LIPHISTIID^E. 



Mandible jointed to the cephalothorax in a vertical plane ; the 

 fang, when closed, directed obliquely backwards and inwards. No 

 maxillary process on coxa of palp. Sternum very narrow, much 

 longer than wide, without distinct sigilla. Legs with distal 

 segments strongly spined, not scopulate, furnished with 3 claws. 

 Carapace flat, lightly elevated in the cephalic region ; fovea 

 transversely oval ; radiating grooves strongly defined. Eyes 

 aggregated on a distinct tubercle ; anterior medians minute, 

 posterior medians large and circular, anterior and posterior laterals 

 long and reniform. 



Distribution. Oriental Eegion, from Burma and the Malay 

 Peninsula to Sumatra. 



Genus LIPHISTIUS, Schiodte. 



Liphistius, Schiodte, Nat. Tijdschr. (2) ii, p. 621, 1849 j Simon, Hist. 

 Nat. Araign. i, p. 64, 1892. 



Characters and distribution as above. 

 Type. L. desultor, Schiodte ; Penang. 



128. Liphistius birmanicns, Thorell, Ann. Mm. Genova, xxxvii, 

 p. 162, 1897. 



$ . Colour blackish, sometimes varied with greyish yellow. 

 Carapace as long as patella and tibia of the 4th leg. Legs 4, 3, 

 2, 1 in length ; 1st, 2nd, and 3rd subequal ; 4th about three times, 

 1st a little more than twice, as long as the carapace. Claw of 

 palp and inferior claw of legs armed with 23 small teeth ; 

 superior claws of legs with 3-4 larger teeth. 



Measurements in mm. Total length 24, carapace 11, palp 18, 

 1st leg 23, 2nd 23'25, 3rd 24, 4th 32-50. 



Loc. Burma : Yado, in the mountains of Karennee, 3600-3900 

 feet ; Biapo, 3000-3200 feet (Fed). 



OPISTHOTHEL^E. 



Dorsal surface of abdomen without segmentally arranged tergal 

 plates, and without distinct sternal plates beneath, the sterna of 

 the Mesothelae being at most represented by the pulmonary 

 opercula. Spinning-mamillce never more than six in number, 

 and, at least in all the Indian species, forming a compact or 

 tolerably compact group at the posterior end of the abdomen, close 

 to the anal papilla. 



