492 Fretp Museum or Naturat History — Zoétocy, Vor. XI. 
Type [of species] — The specimen upon which has been based the first recognizable 
description of the species or subspecies which conforms with the rules govern- 
ing zoological nomenclature. 
Type locality — The exact locality where the type of the species was collected. 
Unicuspid — Having a single cusp or point. 
Uropatagium — Interfemoral membrane; see interfernoral. 
Vacuity — A vacant space or opening. 
Ventral — Pertaining to the abdominal surface. 
Zonary — Resembling a belt or girdle. x 
Zygoma or zygomatic arch — The bony arch of the cheek formed by the jugal or 
malar bone and the zygomatic process of the squamosal; see chart, p. 12. 
Zygomatic breadth — Greatest distance between outer sides of zygomatic arches. 
