NATURAL SCIENCES OF PHILADELPHIA. 153 



July 23c?. 

 Vice-President Bridges in the Chair. 



Nineteen members present. 



The following papers were presented for publication : 



" Description of a new species of Pitta (Brachyurus) leucoptera " 

 by D. G. Elliot. 



" A Monograph of the Tringeas of North America/' by Elliott Coaes. 



" Notes on some genera of Fishes of the western coast of North 

 America," by Theodore Gill. 



" On a new type of Aulostomatoids found in Washington Territory," 

 by Theodore Gill. 



" Descriptions of new Pteropine Bats from Africa," by Harrison 

 Allen, M. D. 



Dr. Slack called the attention of the Academy to a species of the family of 

 Lemuridse, obtained by Mr. P. B. Duchaillu in equatorial Africa, and named 

 by him Otolicnus apicalis, (Proc. Boston Soc. 1860.) The species was first 

 described by the late Maj. Le Conte, in the Proceedings of the Academy, 1857, 

 under the name of Microcebus elegantulns. Neither of these names are 

 proper. From the genns Microcebus it is readily distinguished by the form of 

 the head and the position of the inferior incisors, which in the specimen under 

 consideration are horizontal. The genus Otolicnus was founded by Illiger, 

 in his Prodromns, 1812, upon a wrong basis, viz., the absence of ears. The 

 ears of this genus are very thin, and are frequently broken in transportation ; 

 this is the case with the present specimen, though on its arrival at the Academy 

 a few years since they were perfect, and are described by Maj. Le Conte as 

 large and membranous. . The proper name of the genus is Galago, given 

 it by St. Hilaire, in his " Memoire sur les rapports naturels des Makis,'' 

 1796. Maj. Le Conte's specific name, by the rule of priority, must be retained, 

 and the proper name of the species is therefore Galago elegantulus. Two 

 young specimens of the same species, obtained by Dr. Ford in the Gaboon 

 country some years since, were exhibited; they vary somewhat from the 

 adult in coloration, but can readily be distinguished by the tip of the tail 

 being white, a character belonging to no other species of the genus. 



July BOth. 



Vice-President Bridges in the Chair. 



Twelve members present. 



On report of the respective Committees, the following papers were 

 ordered to be published in the Proceedings : 



Description of a New Species of the Genus PITTA. 



BY D. G. ELLIOT. 



Pitta (Bkachyurits) leucoptera, Elliot. 



Viridis ; capite nigro castaneo maculato ; gula alba ; corpore subtus fulvo, 

 crisso dilute coccineo ; tectricibus alarum albis ; uropygio viridi-cyaneo, remi- 

 gibus nigris magna exparte albis ; cauda nigra apice caerulescente. Rostro 

 nigro apice brunneo ; pedibus pallescentibus. Juv. 



Habitat. Ceylon. 



1861.] 



