23. AETIBIiUS. 519 



This species appears to connect Artibms with Vampyrops through 

 V. liiieatus and V. Jielleri, resembling both in size, in the white 

 facial streaks, in the presence of a white line down the middle of 

 the back, and, in common with the other species, in the number of 

 the teeth, while it agrees with V. helleri closely in the form of the 

 nose-leaf. 



3. Artibeus perspicillatus. 



Vespertilio perspicillatus, Linnams, Si/st. Nat. xii. ed.- p. 47 ; Schreher, 



Saiigethiere, p. 160, pi. xlvi. A (1775). 

 Phjllostoma perspioillatum, Geoffrm/, Ann. du Musium, xv. p. 17G, 



pi. xi. (1810) ; Wagner, Suppl. Schreb. Saugeth. i. p. 402 (1844), v. 



p. 631 (1855). ^ i- V /) 



Ai'tibeus jamaicensis, Leach, Linn. Trans, xiii. p. 75 (1822). 



Madatseus lewisii, Leach, I. c. p. 82. 



? Phyllostoma superciliatum, Wiecl, Beitr. mr Naturaesch. BrasU. ii. 



p. 200 (1820). 

 Arctibeus perspicillatus, Oray, Mag. Zool. <^ Bot. p. 487 (18-39). 

 jVitibeus carpolegus, Gosse, A Naturalist's Sojourn in Jamaica, p. 151 



(1851). 

 Pteroderma perspicillatum, Gei-vais, JExped. du Comte de Castelnau, 



Zoologie, p. 34, pi. viii. fig. 7, pi. x. fig. 1 (teeth) (1855). 

 Artibeus perspicillatus, Peters, MB. AJcad. Berl. 1865, p. 356. 



Resembles A. planirostris closely in size and in general appear- 

 ance, but may be at once distinguished by the front margin of the 

 nose-leaf being completely bound down to the muzzle, in some 

 individuals even confluent with its integument. 



Two longitudinal white streaks on the head* are generally well 

 defined in all full-grown individuals, and also a white patch on each 

 shoulder at the point of origin of the antebrachial membrane, in 

 this respect also contrasting with A. planirostris, in which the two 

 upper head-streaks are only occasionally faintly defined and the 

 shoulder-patches are absent. 



Fur, above, dark brown in terminal third, the extreme tips of the 

 hairs greyish, the basal three fourths pale brown ; beneath, more 

 greyish on the surface, the greater part of the hairs unicoloured 

 light brown. Distribution of the fur as in A. planirostris. 



Teeth as in A. planirostris, except that the minute third upper 

 premolar is absent, and the posterior side of the antepenultimate 

 molar is less concave. 



Length (of an adult S from Guatemala), head and body 3"-35, 

 head 1"-1, nose-leaf 0"-5 x 0"-3, ear 0"-9, forearm 2"-7, thumb 0"-6 ; 

 third finger — metacarp. 2"-5, 1st ph. 0"-9, 2nd ph. l"-4, 3rd ph. 

 0"-9 ; fourth finger— metacarp. 2"-35, 1st ph. 0"-75, 2nd ph. 0"-95 ; 

 fifth finger— metacarp. 2"-5, 1st ph. 0"-55, 2nd ph. 0"-8 ; tibia 

 0"-95, calcaneum 0"-3, foot 0""65, interfemoral membrane in the 

 middle 0"-7. 



Hab. Mexican, Antillean, and Brazilian Subregions, apparently 

 generally distributed throughout the two first-named subregions, 

 but in many parts of the Brazilian Subregion its place appears to be 

 taken by A. pilanirostris. 



