522 PHYLLOSTOMID^. 



24. VAMPYEOPS. 



Artibeus, Gervais (in part), Exped. du Comte de Castelnau, Zoologie, 



p. 35 (1855). 

 Platyri'liinus, Saussure (in part), Revue et Mag. Zool. 1860, p. 429. 

 Vampyrops, Peters, MB. Akad. JBerl. 1865, p. 356. 



Muzzle longer and narrower than in Artibeus ; nose-leaf, warts of 

 the lower lip, and ear-conch as in that genus, but the tragus is deeply 

 incised externally opposite the base of its inner margin, the interfe- 

 moral membrane is less developed, and in all the species known a 

 line of white fur extends along the spine. 



n ■■.• T 4 1—1 2—2 3—3 



Dentition, inc. j, c. j^, pm. 5^, m. ^—r^. 



Teeth intermediate in character between those of Artibeus and 

 those of Sturnira ; the middle upper incisors directed obliquely in- 

 wards and forwards ; molars much narrower than in Artibeus, the 

 last lower molar well developed ; skull in general form as in Arti- 

 beus, but the facial portions more lengthened (see Plate XXIX. 

 figs. 1, la, teeth of V. vittatus). 



Range. Mexican and Brazilian Subregions. 



This genus shows its close relationship to Artibeus in the general 

 form of the ears, of the nose-leaf, and of the warts on the chin ; but 

 the facial portion of the skull is narrower and more produced, the 

 form of the upper incisors is very different, the molars are much 

 narrower above and beneath, the third upper and lower molars are 

 as large or larger in cross section than the upper middle incisors, 

 and in all the known species a narrow line of white fur extends from 

 the head along the centre of the back. 



Synopsis of the Species. 



a. Smaller ; with four very distinct white streaks 

 on the head, 

 u. Fur extending outwards upon the wing-mem- 

 brane as far as a line drawn from the elbow 



to the knee ; forearm l"-65 1. V. lineatus, p. 522, 



^. Fur extending outwards as far as a hne drawn 

 from the elbow to the middle of the tibia ; 



forearm l"-4 2. V. helleri, p. 524. 



h. Larger ; white streaks on the head much less 

 distinct. 

 y. Fur extending outwards upon the wing-mem- 

 brane as far as a luie drawn from the elbow 

 to the middle of the femur ; forearm 2"'35. 3. V. vittatus, p. 524. 



1. Vampyrops lineatus. 



Phyllostoma lineatum, Oeoffroy, Ann. du Museum, xv. p. 180 (1810) 5 

 Wagner, Suppl. Sehreh. Sdugeth. i. p. 408 (1844), v. p. 633 (1855) ,; 

 Burmeister, Thiere Brasiliens, p. 48 (1854). 



Arctibeus lineatus, Gray, Mag. Zool. ^- Bot. ii. p. 487 (1838). 



Artibaeus lineatus, GerDais, JExjwd. du Comte de Cvstelnau, Zoologie, 

 p. 35, pi. X. fig. 2 (teeth) (1856). 



