KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 57. NIO 2. 13 



The specimens obtained were both shot in the evening just before dusk, and they 

 were flying at a considerable height and rather difficult to get. In no other parts of the 

 country obtained or observed. 



Rhinolophus malayanus. Bonh. 



$ Koh Lak, Siamese Malaya 3 /is 1914. — Forearm = 40,5 mm. 



A single specimen of this bat was obtained at Koh Lak in the Siamese Malaya. 

 It agrees well with the description given by Bonhote (Fasciculi Malayensis. Part I. 

 1903 p. 15) who described it on specimens from Biserat, Jalor. Since that time some 

 other specimens have been obtained among the Laos mountains of Northern Siarn. 



Skull measurements: 



Total length = 17, 7; mastoid width = 8,1; width of brain case = 7,s; zygomatic 

 width = 8,0; length of mandible = 11, 1; upper teeth — 6,3; lower teeth = 6,9 mm. 



Rhinolophus minor. Horse. 



£ Koh Lak, Siamese Malaya, 3 /ia 1904. — Forearm = 38, o mm. 



A member of the Rhinolophus lepidus Group as defined by K. Andersen in his 

 excellent paper »On some Båts of the Genus Rhinolophus» (Proceedings of the Zoologi- 

 cal Society 1905. Vol. II, p. 75-145). 



In this Group Andersen recognises three different types viz. 1) the lepidus-type, 

 2) the minor-type and 3) the subbadius-type. 



The minor-type is characterized by having a proportionately very small skull; 

 the width of the brain-case varies between 6,8 — 7,2 mm.; the connecting process of the 

 sella projects as a small, erect triangle and is ne ver curved forwards as a sharply pointed 

 »horn ». 



The minor-type contains the following forms besides the true R. minor Horsf. 

 from Nepal, Siarn, the Malay Peninsula and Java, Rhinolophus cornutus Temm. from 

 Japan, R. cornutus pumilus K. And. from Foo-chow and the Loo-choo Islands and R. 

 gracilis K. And. the type of which came from the Malabar coast. 



Skull measurements oj $ from Koh Lak. 



Upper toothrow from front of canine to back of last molar = 5,7 mm.; lower tooth- 

 row from front of canine to back of last molar = 6,3 mm. 



Hipposiderus armiger. Hodgs. 



ef Doi Par Sakeng, Northwestern Siarn 22 /s 1914. — Forearm = 94,2 mm. — <f Doi Par Sakeng, 

 22 /s 1914 (in alcohol). — Forearm — 95, o mm. — $ Noug Bea, Northwestern Siarn 2 /i 1914. — Forearm 

 = 93,o mm. — J 1 Nong Bea ä /? 1914 n alcohol). — Forearm = 97,2 mm. — $ Nong Bea 2 /i 1914 

 (in alcohol). — Forearm = 92, o mm. 



All the specimens obtained seems to belong to the typical form of Hipposiderus 

 armiger Hodgs., the range of which extends from Masuri eastwards through Upper Burma 



