38 



PROCEEDINGS OF THE ACADEMY OF 



[Feb. 



Color. — As far as cau be judged from the alcholic Jamaicau 

 specimens, the form appears to have a more reddish appearance, 

 the fur being waluut-brown, while the available alcoholic specimens 

 and one skin of G. soricina are between a clove-brown and sepia. 

 This appears to apply also to the membranes. 



Skull. — Large, comparatively slender, the rostrum narrower than 

 in 0. soricina. Posterior bony extension of the palate rather 

 broad. 



Teeth. — Essentially as in G. soricina, but the second upper molar 

 has the internal lobe longer, thas making the tooth heavier and 

 more quadrate. 



Remarks. — This northern form of G. soricina is very distinctly 

 differentiated from typical soricina as restricted. The greater general 

 size and more elongate skull, with the slender rostrum, immediately 

 separate it. With G. longirostris and elongata, as shown above, no 

 comparison is necessary. 



Specimens examined. — Three alcoholic specimens from Port 

 Antonio, Jamaica (type and cotypes). Skull from Bahamas. 



Comparative measurements. 



6. s. antiUarum. O. soricina 











Length of forearm 



Length of hind tibia 



Length of foot 



Length of ear 



Extent of interfemoral membrane 



Length of skull , 



Length of rostrum from interorbital constric 



tion 



Width of brain case 



"Width of rostrum at canines 



13.5 



9.5 



13.5 



13.5 



22.5 



11 



11.2 

 9.2 

 4 



14 

 9 

 12.5 

 15 

 20 



10 



84.7 

 13.2 

 9 

 13 



14 

 21 . 



9.5 



8.5 

 4 



