CONTRIBUCIONES AL CONOCIMIENTO DE LOS MURCIELAGOS DE MEXICO I

Resumen

Under the title of ''Contributions to the knowledge of the Bats of Mexico'' we will gather several papers. The present one is about the Bats of the State of Morelos and we redescribe in it Micronycteris megalotis mexicanus Miller, Macrotus mexicanus mexicanus Saussure, belonging to the sub-family Phyllostominae; Artibeus jamaicensis jamaicensis Leach, from the subfamily Stenoderminae; Myotis velifer (Allen), Eptesicus propinquus Peters from the sub-family Vespertilioninae, and Tadarida brasiliensis (l. Geofroy) from the famiy Molossidae.
We describe also two new species :
1st. Balantiopteryx ochoterenai from the sub-family Emballonurinae with the following characteristics:
Por the genus:
a) Wing sac at half of the antebranquial membrane.
b) Inflated nasal bones; deep rhomboideal excavation between the nasal and parietal bones.
For the species:
a) Ear divided in three parts by two longitudinal crests.
b) The first located between the inside border of the ear and the crest of warts, formed by hairs in a longitudinal line.
c) The second formed by a series of warts, where two or three hairs are inserted, located at the inner extremity
of the transverse stripes; this line is between the anterior crest and the external border.
d) The presence of a supra -orbitary wart, another supra-nasal and two post-comisural. where a long, stiff, hair is inserted.
The second new species is Gloossophaga morenoi from the sub-family Glossophaginae, with the following characteristics :
For the genus :
                                       2-2         1-1           2-2           3-3
a) Dental formula: I----------C----------P----------M----------   =    34
                                       2-2         1-1           3 -3          3 -3
b) Complete zygomatic arch.
For the species :
a) Absolute lack of tail.
b) Shorter ear than in G. soricina, and G. longirostris.
c) Basilar length shorter than in G. soricina and G. longirostris.
d) Small nasal leaf and different morphology than G. soricina.
e) External characters entirely similar to Leptonycteris nivalis.