FIGURE 13. Differences in distal humerus morphology between Pteronotus parnellii (left) and P. gymnonotus (right) as seen in medial view with posterior toward the left of the figure; see text for discussion: (a/a′) differences in degree of development and orientation of the epitrochlea and spinous process (epitrochlea less developed and spinous process shorter and directed more distally in P. parnellii); and (b/b′) differences in the outline of the trochlea (more circular in medial view in P. parnellii).

Published as part of Salles, Leandro O., Arroyo-Cabrales, Joaquín, Lima, Anne Caruliny Do Monte, Lanzelotti, Wagner, Perini, Fernando A., Velazco, Paúl M. & Simmons, Nancy B., 2014, Quaternary Bats from the Impossível-Ioiô Cave System (Chapada Diamantina, Brazil): Humeral Remains and the First Fossil Record of Noctilio leporinus (Chiroptera, Noctilionidae) from South America, pp. 1-32 in American Museum Novitates 2014 (3798) on page 20, DOI: 10.1206/3798.1, http://zenodo.org/record/20516072