172 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 69 



cana group eastward from Costa Rica. The group is represented in 

 Costa Rica by C. orophila Allen, which differs from C. merus in 

 somewhat larger size, decidedly larger claws, paler color, and in 

 cranial details. No shrews are known from western Panama, but 

 one or more species doubtless inhabit the Volcan de Chiriqui. 



Three specimens of the present species were trapped under logs 

 on steep banks at from 4,500 to 5,000 feet altitude near the head- 

 waters of the Rio Limon. The banks of streams in this vicinity are 

 very wet and heavily overgrown with ferns. 



Specimens examined : Three, from the type locality. 



Order CHIROPTERA. Bats 

 Family EMBALLONURIDAE. Sac-winged Bats; White Bats 



The bats of this family are slender species, with large interf emoral 

 membrane perforated by the tail which appears on the upper surface 

 a short distance from the edge. The limbs are very slender, the fore- 

 arm strongly curved. Most of the genera have glandular sacs or 

 recesses in the antebrachial membranes. These sacs are well de- 

 veloped and conspicuous in the males, but are more rudimentary and 

 inconspicuous in the females and for this sex do not, therefore, 

 always furnish satisfactory distinguishing characters. Some of the 

 genera are marked by two parallel whitish dorsal stripes ; others are 

 plain, dark colored, and the genus Diclidurus is white. The post- 

 orbital processes are long and curved, except in the genus Diclidurus, 

 in which they are very short and straight. There is no nose leaf. 



Subfamily EMBALLONURINAE 

 Genus RHYNCHISCUS Miller 

 The genus Rhynchiscus includes diminutive, butterfly-like bats 

 with remarkably long, projecting noses. As in the genus Saccopteryx 

 there are whitish dorsal stripes, but unlike the other genera of the 

 subfamily inhabiting the region, there are no wing sacs. Perhaps 

 the most readily distinctive characters are the haired tibia and tufts 

 of grayish fur placed at intervals along the outer side of the forearm. 

 The teeth are 32 in number. A single known species ranges from 

 Brazil to Mexico. 



RHYNCHISCUS NASO PRISCUS G. M. Allen 

 Mexican Long-nosed Bat 

 Rhynchiscus naso priscns G. M. Allen, Proc. Biol. Soc. Washington, Vol. 2j t 

 p. 109, July 10, 1914. Type from Xcopen, Quintana Roo, Mexico. 



The Mexican long-nosed bat is a small species (forearm about 

 38.5) with two whitish stripes extending along the back much as in 



