116 PROF. A. D. IMMS OX 



with scales ; tlie dentes provided with a double row of six large 

 scales, which are somewhat spear-shaped with a prominent mid- 

 rib ; to the inner side of each mucro is a large terminal scale 

 (fig. 91). 



Coloration. — When alive, white (Annandale) ; in alcohol, pale 

 dirty cream-colour. 



Length 1 mm. 



Four specimens on bats' dung in total darkness in the Khayon 

 Caves near Moulmein, Burma (iV^. Annandale, March 7th, 1908). 



No. ^ Indian Museum Coll. 



lb 



The absence of eyes and pigmentation are characteristics of a 

 true cave-dwelling animal. Dr. Annandale informs me, however, 

 that the Khayon Caves are of no great extent, though their inner 

 parts are quite dark. 



Cyphoderus shmdans is readily distinguished from C. albinus 

 Nic.t in possessing a somewhat longer superior claw to the feet, 

 with two small additional teeth. The latter, however, are difficult 

 to detect on account of their delicacy and transparency. 



Genus PsEUDOCYPHODERUS, gen. nov. 



Mesonottmi nan pi'ominens. Segmentum abdominis quartum 

 quintuplo longius quam tertiimn. Antennce dimidiam /;)ar^ft77i 

 cor]Joris cequanteSy infra caput insertce. Mncrones unimiti. Manu- 

 br.'um biarticulatum. Ocelli et orgaim postantewnalia carent. 

 Squamis et setis instructus. 



This genus may be readily separated from Cyphodertis Nic, 

 and Cyphoderodes Silvestri J, by the fact that the mouth and 

 frontal region of the head are completely ventral in position, and 

 consequently, the points of insertion of the antennse are situated 

 on the ventral aspect of the head. 



*PSEUDOCYPHODERUS ANNANDALEI, Sp. n. (PL XII. figS. 87-89.) 



Antennce ciriiculis U^ibus ultimis inter se longitudine suh-cequal- 

 ibics. Unguiculus superior quadridentatus ; unguiculus inferior 

 bifidus. Dentes dimidiam partem manubrii ceqitantes ; qidnque 

 squamis externis, tribus internis, et una squama, te7'm.inali instructi. 

 Ilucrones quadridentati, dentes ita collocati ut unus post alferum 

 inserttos sit. Long. 1 mm. 



Head. — Considerably broader than long, the facial region, 

 together with the mouth, almost entirely ventral in position. 

 The eyes and post- antenatal organs absent. 



Antennce. — Arising from the ventral surface of the head, four- 

 jointed, the joints related to one another in length as 6 : 14 : 14 : 13. 



Trunk. — Densely covered with small scales, among which are 

 some short scattered hairs of variable length. The head and 

 trunk segments related respectively in length as 15:12:7:4:4: 



f Vide Borner, " Zur Kenntnis der Aptei-y^oteii- Fauna von Rremen und der 

 Nachbardistrikte," Abli. Nat. Ver. Bremen, Bd. xvii. p. 71. fig. 28. 



t In " Tfrniitenk'be:"'. auf C'e,vlon.'' von K. Ksolicvicli. .Jena lO]], u. '21-1. 



