262 ON THE GLOSSOPHAGINA. 
nerve markings in the fourth interspace as in Glossophaga except that from the fourth 
digit there are three instead of one nerye. The terminal cartilage of the fourth digit is 
obscurely spatulate. 
The Skull—The skull not papyraceous, the division of the cerebellum, but not of 
the cerebrum, discernible on periphery. The pretemporal crest distinct. It begins over 
the moderate fronto-maxillary inflation to form a delicate crest by union with the fellow 
of the opposite side at the anterior third of the sagitta. _Mesotemporal and posttemporal 
crests not discerned. The orbital ridge is rudimental, but the frontonasal pit conspicuous 
at proximal end of the slightly convex nasal bones. The large infraorbital foramen 
lies over interval between second premolar and first molar and is thatched by a ridge. 
The alveolus (7. e., the distance from the central incisor to the anterior nasal aperture) 
equals in height one-fifth of the base of the upper canine and one-eighteenth of the ver- 
tical diameter of the large, anterior, nasal aperture. The zygoma often complete.* The 
maxilla at root of zygoma with a very small ascending process. The premaxilla at the 
side of the anterior nasal aperture salient. Neither the grooye between the nasal bones or 
the depression on the maxilla at the side of the nasal bones are conspicuous. The depres- 
sion between the aperture last named and the eminence over the canine is shallow. The 
hard palate just back of the last molar is sharply defined by a double crescentic trans- 
verse ridge; the palatal notch is acute and deep, the apex reaching the level of the - 
anterior third of the zygomatic arch, the pterygoid process corresponding in position to 
the oval foramen. The tympanic bone touches the postglenoid process. The junction of 
the ethmoid and sphenoid bones in the brain case not convex. A vacuity is found in the 
line of junction of occipital and squamosal bones. 
The basioccipital bone with scarcely any pit-like depressions ; the vomerine ridge 
scarcely discernible in the mesopterygoid fossa. The mastoid process small, conical. 
The proportion of the face to the brain case is as 9 to 15 mm. 
Lower Jaw.—Coronoid process acuminate. The hamular angle not deflected or pro- 
jected beyond the condyloid process ; lower border of the masseteric impression not dis- 
tinguished from the corresponding border of the horizontal ramus. Back of the molars 
and at base of coronoid process a tubercle for insertion of temporal muscle is seen. 
Symphysis-menti broad, non-carinate, the surface near the incisors marked by coarse 
venous foramina. 
The Teeth—The upper central incisors hatchet-shaped, contiguous ; laterals much 
smaller, not half the size of centrals and separate therefrom. The incisors not entirely 
occupying space between the canines. Canine broad at base, robust, convex entire length 
* Dobson ( Cat. Chirop. Br. Mus.) in text states that they are incomplete, but acknowledges the fibro-cartilagium 
arch in a footnote, 
