1901.] MYEIAPOBA or THE " SKEAT EXPEDITION." 521 



part they are parallel. The tail is yellow, with a median band 

 of the feiTuginoiis ground-colour. The anal calves are dark- 

 coloured. 



Head witli indented upper lip ; surface covered with short stiff 

 hairs. Frontal furrow well marked. The small circular pale 

 spots above the antennae ai'e very conspicuous. Antennae 

 covered with short fine hairs. 



Is^ terf/ite nearly semicircular in shape, very little keel. The 

 margin is higher than that of the second, ^^'hich it partly overlaps. 

 The pale streaks are as clearly marked in the 1 st somite as in 

 the others, but anteriorly they converge and join at the extreme 

 anterior edge. 



2nd tergite has the posterior angle just marked, but not acute 

 like the 3rd. 



2>rd tergite. Posterior angle acute and prolonged into a spine. 



Pleural heels not much developed, distinguishable on the first 

 three somites and dying away about the fifth. 



There is no abrupt transition between the anterior somites and 

 the rest of the body, but the somites increase gradually in size. 



The keels are small, rounded anteriorly, and sharply spiniform 

 posteriorly. The spine, ho\\ever, does not sui^pass more than the 

 half of the cylindrical part of the nest somite. The sternum is 

 smooth and without furrows in the cylindrical part of the somite, 

 but has a median longitudinal furrow dividing the bases of the 

 legs including the last pair. The sub-anal plate and valves have 

 the usual tubercles and setae. The tail has the form of a trun- 

 cated cone with two small tubercles at the two posterior corners ; 

 also two tubercles and setse a little before the end of the tail. 



Stbongtlosoma coarctatum Saussure. 

 From Grunong Inas, Perak. 



Strongylosoma setosum Pocock. 



A young animal with only 19 somites. Prom Tapelung, 

 Patalung State. 



Genus DoratojStotus Pocock. 



DoRAToxoTTJS CAVER]s^icoLy\, sp. uov. (Plate XXXI, fig. 54, and 

 Plate XXXII. figs. 69-71, 73, 74, 78, 82.) 



From Gua Glaf, dark region of cave, Bukit Grib, Eaman Dis- 

 trict, and from Gua Tanan, Patani State. 



Bears a great resemblance to the species described by Pocock 

 as armatus. 



Colour light brownish yellow throughout. Legs, sterna, and 

 antennae lighter. 



The head and antennae as in Pocock's species ; the sixth joint 

 of the antennae is much the longest joint. The maxillao (Silvestri) 

 of the hypostoma are provided with two long appendices maxil- 

 lares, each ^^ith about six spikes at the end. The external margins 



