402 R. I. POCOCK 



Locality. Malewoon (Tenasserim) obtained by Sig. L. Fea. 

 Two young examples collected by Gates in S. Tenasserim are 

 doubtfully referred to this species. 



This species was originally described from Tenasserim and 

 was subsequently procured by Dr. Anderson from the Mergui 

 Archipelago. 



19. Spirostreptus g-estri, sp. n. 



Very closely related to Sp. opinatus. 



Colour (in alcohol) ochraceous, the posterior half of the ter- 

 gites striped with deep brown ; legs and antennae darker or 

 lighter yellow. Antennae shorter than in Sp. opinatus not ex- 

 tending in the 9 beyond the collum and in the c/' not beyond 

 the second tergite. 



Other characters as in opinatus. Copulatory feet, however, 

 show well-marked differences; the anterior lamina is not divi- 

 ded below but is hollowed, having the distal margin thickened 

 and turned forwards, the protrusible portion strongly curled 

 backwards and terminating in three processes, one shorter, 

 straight, and spiniform, the other two strongly curved, one of 

 them being comb-like and armed with a series of long slender 

 teeth, the other expanded into a membranous lamina apparently 

 for the protection of the other piece. 



No. of somites about 62. 



Length up to about 110 mm. 



Locality, Plapoo, Mt. Mooleyit, 1200-1400 m. Collected by 

 L. Fea. Differs from opinatus in its shorter antennae and in the 

 form of the copulatory apparatus. 



20. Spirostreptixs feae , sp. n. 



Colour (in alcohol) ranging from olivaceous to deep castaneous 

 or nearly piceous; the posterior border of the somites sometimes 

 ferruginous, legs ferruginous. 9- Body cylindrical gradually, 

 attenuated anteriorly, somewhat abruptly narrowed behind the 



