134 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, 1892. 



been recorded from India or Ceylon ; but doubtless tbe genus Litho- 

 hius exists in these countries, since two species of it have been 

 described from Burma. Any one wbo remembers tbe common English 

 centipede — the * forty-legs ' of some parts — found under almost every 

 stone in England, will know LithoUus if he comes across it in India. 

 The Geophiliclce are the long, vermiform, subterranean centipedes, all 

 being of relatively small size, with legs varying in number from 

 about 40 up to over 100. Three species, referable to three genera, 

 have, so far, been recorded from India and Ceylon ; but many 

 more undoubtedly remain to be discovered ; for Mr. Gates obtained 

 eight species in Burma. Two of the three known Indian 

 forms are recorded below; the third was on a previous occasion 

 sent by Mr. Thurston from Madras. The 8colopendridce are 

 the best known members of the group. They are mostly of large 

 or medium size, and have 21 (rarely 23) pairs of legs. The Indian 

 and Ceylonese members of the group are referable to the genera 

 8coIopendra, Cormocephakis, Otostigma, Rhysida, [Branchio stoma), 

 and Heterostoma. The last two differ from the others in having 

 a pair of stigmata on the 7th somite. Heterostoma, recognisable from 

 Rhi/sida by its large sieve-like stigmata, is of large size, approaching 

 in this respect Scolopendra ; there are some five or six mostly ill- 

 defined species of this genus known from India, Ceylon, and Burma. 

 Rhysida, with two Indian species, both recorded below, is of small 

 size, and has stigmata that have been described as 'ear-shaped.' 

 Otostigma is exactly like Rhysida except for the absence of stigmata 

 on the 7th somite. This is the most abundant genus in the Oriental 

 reo-ion — 6 species having been recorded from Burma, 2 of them 

 occurring also in Ceylon, and 5 being known from India, 4 of them 

 having been sent by Mr. Thurston from Madras. Gormocephalus differs 

 from Otostigma in the structure of the head-plate, and in the more 

 elongate shape of its stigmata. Four species, all of small size, are 

 known from India and Ceylon. One of these is described below as 

 coming from Madras. Scolopendra differs from all the preceding 

 o-enera in having the head covering the anterior portion of the tergite 

 that succeeds it. There are only about 7 species known from Burma, 

 India and Ceylon. The genus Cryptops, which is composed of small, 

 slender, somewhat geophilus-like, blind species, has not yet" been 



