igiS-l J" R- Henderson : Arachnida, I. 129 



Thingannyinaung to Myawadi, ca. goo ft., 24 — 26-xi-ii {F. H. 

 Gravely). Three specimens of which one is ven^ young. 



Kawkareik to Third Camp, Amherst district, 21-xi — i-xii-ii 

 {F . H. Gravely). Two specimens. 



2. Lychas scutilus (C. Koch). 



Archisometrus scutilus, Kraepelin^ Tierr. Scorp., p. 44 (1899). 

 L. scutilus, Pocock, Fauna of India, Arachnida, p. 37 

 (1900). 



This species extends from Tenasserim through the Mala^* 

 Peninsula to Sumatra and Java, 



Habitat — Farm caves near JNIoulmein (F. H. Gravely). 

 An adult 9 . 



3. Lychas graveiyi, n. sp. 



Habitat. — -Moulmein, a single 2 specimen {F. H. Gravely). 



Colour in general black varied with yellow. Carapace and terga 

 black, with ill-defined yellow mottlings; a yellow spot on either 

 side of the frontal margin. Mandibles yellow, with a delicate black 

 reticulation. Chelae and legs yellow, with black mottlings; upper 

 surface of humerus and brachium black; with a series of rounded 

 yellow spots; hand yellow, fingers blackish Tail black, with traces 

 of yellow on the first three segments ; vesicle black, with a yellowish 

 tinge at the base of the aculeus and on the tooth. Legs yellow, 

 with black mottlings on the anterior surface. Sterna with faint 

 black mottlings on a 3''ellow ground ; first sternum with a median 

 black line. 



Carapace and terga evenly granular throughout ; the latter with 

 a single median keel. 



Sterna membranous with the surface polished towards the 

 centre. Last sternum granular throughout and with four granular 

 ridges ; fourth sternum also granular, but less so than the last, with 

 four polished tubercles on the posterior margin; slight traces 

 of granules occur on the first three sterna, chiefly towards the 

 lateral margins and a few bristles occur on all the sterna. 



Tail somewhat stout, about four and a half times as long as 

 the carapace. First and second segments with the median lateral 

 keel complete, the intercarinal spaces granular; the keels well- 

 developed and granular, the superior subspiniform apically. First 

 segment much wider than long, the fourth not twice as long as wide. 



Vesicle with a median granular line below, which is continued 

 on to the tooth; two faint granular lines on either side. Inner 

 edge of the tooth dentate. 



Chelcc with the hand narrower than the brachium, smooth but 

 for minute granules on the humerus and to a lesser extent on the 

 brachium. Movable digit more than twice as long as the under- 

 hand, with eight rows of teeth. Fingers about the same length as 

 the carapace. 



Tibial spurs short. Tarsi with two rows of bristles. 



