12. MOLOSSUS. 415 



between them and the canines ; first upper premolar minute, 

 quite external to the tooth-row ; the second premolar much exceed- 

 ing the molars in vertical extent, and close to the canine ; first 

 lower premolar about one third the size of the second, standing in 

 the tooth-row. 



Length (of an adult J), head and body 3"'l, tail 2"-l, free from 

 membrane 0"-7, head 0"-9, ear 0"-6, tragus 0"-08x0"-02, forearm 

 2", thumb 0"-3 ; third finger— metacarp. 2"-05, 1st. ph. 0"-95, 2ud 

 ph. 0"-95 ; fourth finger— metacarp. 2", 1st ph. 0"-75, 2nd ph. 0"-15 ; 

 fifth finger— metacarp. l"-2, 1st. ph. 0"-5, 2nd ph. 0"-22 ; tibia 0"-7, 

 foot 0"-4. 



Ilab. Brazil ; Central America (Guatemala). 



This species is quite intermediate between M. rufus (subg. Mo- 

 lossus) and M. abro.sus (subg. Promops), agreeing with the former 

 in the form of the ear and even in the distribution of the fur, with 

 the latter in the form and number of the teeth. 



a. S ad., al. Duenas, Guatemala. O. Salvin, Esq. [C.]. 



6. Molossus abrasus. 



PMolossus ater, Geoffrey, Annul, du Mus. vi. p. 153 (1805). 

 Dysopes abrasus, Temminck, Monogr. Matnmal. i. p. 232 (1827) ; 



Wagner, Suppl. Schreb. Sdugeth. i. p. 475 (1844). 

 Dysopes longimanus, Wagner, Wiegm. Archiv, 1843, p. 367. 

 Dysopes leucopleura, Wagner, I. c. ; Burmeister, Thiere Brasiliens, 



p. 73 (1854). 

 Molossus abrasus, Peters, MB. Akad. Berl. 1865, p. 574 ; Dobson, 



P. Z. S. 1876, p. 712. 



Ears much shorter than the head, but conspicuously larger than 

 in M. rvfus, united by their bases only on the muzzle at a point 

 equally distant from the anterior commissure of the eyelids and the 

 nostrils ; outer and inner margins of the ear regularly convex, 

 forming together almost a perfect arc of a circle ; antitragus half- 

 cordate, with a broad base, separated behind by a deep notch ; keel 

 of the ear-conch well-developed, thickened, and expanded externally 

 in lower half (Plate XXI. fig. 3) ; tragus minute, linear, subacutely 

 pointed, slightly larger than in M. rufus, but with a broad base. 



Muzzle obtuse ; nasal apertures directed forwards and slightly 

 outwards, the end of the nose scarcely projecting beyond the margin 

 of the upper lip, which is separated from the margin of the nostrils 

 by a space less wide than in M. rufus ; the external margins of the 

 nostrils more prominent than in that species, and continued 

 upwards and inwards above the nasal apertures and downwards 

 between them in a conjoined ridge to the margin of the lip ; 

 the upper margin of the nasal disk thus formed on each side is 

 finely and evenly toothed, and the intemasal ridge covered with 

 short spoon-shaped hairs, similar to those forming a broad patch 

 between the nostrils and upper lip in M. rufus, but strictly limited 

 to this ridge ; the margin of the upper lip in front is fringed with 

 straight hairs. 



