394 



EMBALIONUKID^. 



sisting of insects (tlie Prince of Neuwied found iosect-remaius in 

 the stomach of JV. dorsatus* ; and individuals of the same variety 

 obtained by Mr. Gosse in Jamaica fed eagerly on cockroaches t), but 

 occasionally of other small animals, as minute Crustacea J ; also of 

 some fruits (Linneeus, in his original description of N. leporinus, 

 remarks, " victitans fructihus arhorum ") ; and in the intestines of 

 specimens of the same species received by me from British Guiana I 

 found the seeds of some fruit, perhaps of Moms tinctoria. Tschudi 

 (' Fauna Peruana,' p. 77) remarks : — " They {Noctilio unicolor et 

 afflnis) live in hollow trees, and feed on beetles, which we always 

 found in their stomachs." 



Synopsis of ilie Species. 



a. Larger; forearm in adults at least 3 inches 



long ; foot 1" ; upper molars touching by the 



extremities only of their external cusps, with 



narrow spaces between the adjacent teeth. . I. N. leporinus, p. 394. 

 h. Smaller; forearm in adults not exceeding 2"-6 



in length ; foot 0"-6 ; upper molars closely 



approximated together without intervening 



spaces 2. N. dihiventer, p. 398. 



1. Noctilio leporinus. 



Vespertilio leporinus, Linnaus, Sijst. Nat. (ed. x.) p. 32 ; Schreher, 



Sdugethiere, p. 162, pi. Ix. (1775J. 

 Noctilio americanus, Linnesus, St/st. Nat. (ed. xii.) p. 88 (1776). 

 Gelfeno brooksiana. Leach, Trans. Linn. Soc. xiii. p. 70 (1822). 

 Noctilio rufus, Spi.v, Simiar. et Vespert. Bresil. p. 57, pl. xxv. fig. i 



(1823) (vide I'eters, MB. Akad. Beii. 1866, p. 570). 

 Noctilio unicolor, Geofroy, Wied, Beitr. Naturg. Brasil. p. 223 



(1826) ; Tschudi, Fauna Fei-uana, p. 76 (1844-46) ; Blainville, 



Osteographie, pl. 8 (skull). 

 Noctilio leporinus, IfOrhigny et Gervais, Voyage dans VAmerique 



Me]-id., Mammif. p. 12, pl. 9. figs. 1-4 ; Peters, I. c. pl. tigs. 1-1 b 



(skull). 



(For additional synonymy see p. 396.) 



Ears about one fifth shorter than the head, very narrow and 

 pointed ; ear-conch attenuated in upper fourth, both the inner and 

 outer margins concave above, the latter more so, and the very nar- 

 rowly rounded-off tip inclines slightly outwards ; lower three fourths 

 of the inner margin evenly convex, the base arising abruptly from 

 the side of the head ; corresponding portion of the outer margin 

 faintly convex or straight, abruptly emarginate opposite the tragus, 

 beyond which it is reflected outwards, forming a well-defined rounded 

 antitragus, from the base of which in front a raised ridge extends 

 forwards along the side of the face to the angle of the mouth ; tragus 

 much longer than broad, inclined outwards, the outer and superior 

 margins with five prominent projections like the teeth of a comb, 

 drown of the head slightly elevated. Muzzle conical, the prominent 



» Bcitr. zur Nalurg. Bi-asil. Bd. ii. p. 223. 



t Vide p. SOB, ivfra. J Fjrfc p. 397, iii/ra. 



