424 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.46. 



Diagnosis. — Like Glossophaga longirostris, but skull (fig. Ic.) with 

 rostrum more extremely elongated and braincase reduced in both 

 height and relative width, its dorsal profi^le not forming evident angle 

 with that of rostrum in interorbital region. 



Color. — The only skins seen are four prepared after a few months' 

 immersion in formahn. They show no pecuharities of color as com- 

 pared with the other members of the genus. 



Sliull. — Apart from the characters already mentioned the skull 

 (fig. Ic.) does not differ appreciably from that of Glossophaga longi^ 

 rostris. The range of variation is essentially as in the other species. 

 In 20 skuUs the variation in condylobasal length is 1.4 mm., or 6.2 

 per cent of the mean, that in breadth of braincase 0.6 mm., or 6.9 per 

 cent. Referred to the mean condylobasal length the variation in 

 breadth of braincase is 2.6 per cent. 



Teeth. — The teeth do not differ appreciably from those of Olosso- 

 phaga longirostris. 



Measurements. — For detailed measurements see table, page 429. 



Specirnens examined. — One hundred and thirty-three, all from the 

 island of Curasao. 



Remarlcs. — Contrary to what might be expected the local member 

 of the longirostris group inhabiting Curasao is much more differen- 

 tiated from that of the mainland than is the race found in the Lesser 

 Antilles. Every specimen examined is immediately recognizable 

 by its relatively narrow braincase and faintly angled dorsal profile. 



