Descriptions of East Asiatic Mammals 91 
from the Malay Peninsula. The length of forearm is 1%2 
inches. 
Eptesicus pachyotis ("thick-eared") is a special type, with the 
basal part of the ear thickened. The color is dark brown, the 
length of the forearm 1% inches. This bat is known from As- 
sam, the northern part of the Malay Peninsula, and Siam. 
Eptesicus verecundus is apparently rather similar to E. pachy- 
otis but a trifle smaller. Forearm 1% inches. It is found in 
Perak, Malay Peninsula. 
Several species of Eptesicus have been proposed by Japanese 
authors. We have no specimens and know little about them. 
They include E. horikawai from Formosa, E. kobayashi from 
Korea, E. pravus from northern Korea. 
The Yellow Bats, Scotophilus (= Pachyotus) , the first from 
the Greek words meaning "loving darkness," includes only two 
species groups, a larger kind, S. heathii, with forearm 2% to 
2% inches, and a smaller, S. temminekii, with forearm measur- 
ing from just short of 2 inches to 2% inches. The Bats of this 
genus are heavy-bodied, strongly built animals with powerful 
jaws and teeth. They are usually colored yellowish brown, with 
the underparts burly. A reddish phase that occurs in the Malay 
Peninsula has been named castaneus (chestnut-colored). 
The S. heathii group has its headquarters in peninsular India 
but a representative, insularis, olive-brown in color, occurs in 
Siam, Annam, Tonkin, Yunnan, and the Island of Hainan in 
southern China. A large Scotophilus "kiihlii insularis" is re- 
corded by Kuroda from Formosa. The 5\ temminekii group is 
also widely distributed. It is represented by gairdneri in Siam, 
castaneus in the Malay Peninsula and Annam, and consobrinus 
in Hainan. 
The Harlequ/n Bats, Scotomanes ornatus, have been men- 
tioned earlier as one of the few Bat genera tricked out with 
striking colors. They are brown above, tipped with a slight frost- 
ing of russet. They have pure white marks on the forehead, the 
