On EpliemeridsQ from Tropica! Africa. 271 



backwards, their vertical greater than their horizontal dia- 

 meter, triangular, pointed, with a high main cusp and the 

 anterior and posterior secondary cusps quite low. In 

 Glossophaga and Lonchophylla the lower premolars are 

 elongate .horizontally, especially the anterior one, which 

 exceeds the second, and their secondary cusps are pro- 

 portionally much more developed. 

 Type :— 



Lionyctcris spun-elli, sp. n. 



Size and general appearance about as in Glossophaga 

 soncina. Colour above bistre, the bases of the hairs darker 

 and greyer, the ends paler, near "snuff-brown"; under 

 surface rather paler, near "olive-brown " (Ridgway, 1912). 

 In other Gbssophagince the bases of the hairs are lio-hter 

 than the tips. Ears and nose-leaf apparently as in Gfosso- 

 phaga soricina. 



Skull and teeth as described above. 



Dimensions of the type (the italicized measurements taken 

 in the flesh) : — 



Forearm 33 mm. (Specimen immature.) 



Head and body 40 ; tail 7 ; ear 13; lower leg and hind 

 foot (c. u.) 23. 



Skull : greatest length 18*7 ; condylo-basal length 17-5 ; 

 interorbifal breadth 3"7 ; breadth across braii^case 8; 

 palatal length 8'1 ; front of canine to back of ?n 3 Cyl '; 

 breadth between outer corners of m 2 1'S. 



Hab. Condoto, Choco, Colombia. Alt. 300'. 



Type. Immature male (teeth unworn, outer incisors not 

 fully erupted, and milk-incisor still present). B.M. no. 

 L3. 8. 10. 1. Original number 311. Collected 10th May' 

 19J3, by Dr. U. G. F. Spurrell. One specimen. 



Tins genus, while clearly most related to Lonchophylli 

 and Glossophaga, is readily recognizable by its quite normal 

 and unmodified premolars, which have nothing of the peculiar 

 horizontal lengthening of those of other Glossophagimr. 



Even by its colour Lionycleris spurrelli is distinguishable 

 from its allies, as other Grlosaophagine bats have light bases 

 to the fur, while here the bases are darker than the tips. 



XXXIL— Ephemeridae//ow Tropical Africa. 



By the Rev. A. E. Eaton, M.A., F.E.S. 



Reporting upon thirteen specimens of May-flies received 



from the British Museum of Natural History last July, it may 



be remarked that most of the species represented are in 



