106 Mr. G. A. Boulenger on new Malay Frogs. 



vii, C'tenus. Tibial apophysis of pedipalp. (a) C. nu/rittts, from out- 

 side ; (b) C. rectipes, from outside ; (c) C. planipes, from out- 

 side ; (d) C. serratipes, from above ; (e) C. curvipes, from below ; 

 (f ) C. sinuatipes, Irom above, with apopliysis enlarged ; (g) C. 

 medius, from outside; (h) C. spuulus, from outside. 



Plate IV. 



i. Lycoctenns. Palpal bulb from below, (a) L. brunneus, S\ (b) L. 

 Heu'itsoni, S ; (c) " unca " of bulb, (1) L. gigas, (2) L. brunneus, 

 (3) L. demerai-ensis, (4) L. colomhianus ; (d) tarsal claws of L. 

 bru7i)ieus, ^ . 



ii. Lijcodenus, Vulva, (a) L. briimims, $ , from above ; (b) L. b(go- 

 <«i«s, from above ; (c) i. brunneus, in profile; (d) L. bugot en- 

 sis, in profile. 



iii. Acanthoctenus. (a) A. Marshii, S- tibia and tarsus of pedipalp 

 from outside ; aa, tibial spur; Jib, apical spine, (b) A. spini- 

 gerus, c?: aa, tibial spur, (c) A. Marshii, $: vulva, (d) A. 

 spinipes, $ : vulva, (ej A. JiuUegi, $ : vulva. 



iv. Cribellum and plan of spinners: (a) A. Marshii, 5; (b) A. Hid- 



leyi, $. 

 V. S(enucte7ius pallidus, cJ. Tibia and tarsus of pedipalp, (a) from out- 

 side, (b) from beneath. 



vi. Caloctenus aciUealus, $ (type). Eyes from in front. 



Note. — The figures of C. curvipes, Keys., are from Keyserling's figures. 



VIII. — Descriptions of netv Malay Frogs. 

 By G. A. Boulenger, F.R.S. 



Ixalus vittiger. 



Snout truncate, not projecting, as long as the diameter of 

 the orbit; canthus rostralis distinct; loreal region concave; 

 nostril nearer the tip of the snout than the eye ; interorbital 

 space broader than the upper eyelid ; tympanum distinct, 

 half the diameter of the eye. Fingers with a rudiment of 

 web ; toes two-thirds webbed ; disks smaller than the tym- 

 panum ; a small inner metatarsal tubercle. The tibio-tarsal 

 articulation reaches the tip of the snout. Skin smooth above ; 

 throat smooth ; belly granulate. Pale grey above, spotted 

 all over with black ; a white, black-edged streak on each side 

 from eye to groin, another on the arm, and a third on the 

 thigh ; forearm and tibia spotted with black ; lower parts 

 white. 



From snout to vent 22 millim. 



A single specimen trom Pcngalengan, Java, 4000 feet, 

 collected by Hr. H. Fruhslorfer. 



