162 COUNT NILS GYLDENSTOLPE ON 
recorded from Koon Tan and Doi Par Sakeng (Northern and North- 
western Siam), Ban Koh Klap (Bandon, Peninsular Siam) and from 
the Islands of Koh Samui and Koh Pennan. 
222, RATTUS RATTUS KRAENSIS (Kloss). 
Epimys rattus kraenis, Kloss, P.Z.S. 1916. p. 57. (Koh Kra). 
Only found on the Island of Kra, off the coast of South-east- 
ern Siam. 
223, RATTUS RATTUS MAKENSIS (Kloss). 
Epimys rattus mukensis, Kloss. P.Z.8, 1916, p. 56. (Xu Mak). 
Another Island race inhabiting Koh Mak. 
224, RATTUS RATTUS KLUMENSIS (Kloss). 
Kpimys rattus klumensis, Kloss. V.Z.8. 1916. p. 56. (Kuh Klum). 
Still another form found on Koh Klum. 
225. Rarrus RATTUS RANGENSIS (Kloss). 
Epinys rattus rangensis, Kloss. P.Z.S. 1916. p. 56. (Koh Rang®. 
Inhabits Koh Rang, where it is fairly common. 
226. Rarrus RATTUS REMOTUS (Rob, & Kloss). 
Epimys remotus, Robinson & Kloss. Ann, & Mag. Nat, Hist. (8) 
XIII, 914, p, 231, 
Found on Koh Samui and Koh Pennan, off the eastern coast of 
Peninsular Siam. 
227. RATTUS RATTUS GRISEIVENTER (Bonh.). 
Mus griseirenter, Bonhote. Fase. Malayenses Zool, Part I. 1903. p. 30. 
(Didor, 8. Perak). 
Originally described from the Malay Peninsula, but specimens 
also obtained in Siam, viz., at Doi Par Sakeng (N. W. Siam) and on 
Koh Chang.* 
* Several specimens of rats belonging to the raftus group have been 
collected at various places in Siam, such as at Ok Yam, Klong Yai 
(8.1. Siam), Pak Jong (12, Siam), Krabin (C, Siam), Maprit, Patiyu 
(Peninsular Siam) and on the Islands of Koh Chang, Koh Mehsi 
Kast and Koh Mehsi West, but as these specimens mostly have been 
immature, it has been impossible to definitely state to which form 
they belong, 
JOURN. NAT, HIST. SOC, SIAM. 
