440 EMBALLONTJRIDJ!;. 



Hah. Ausbralia (N.S. "Wales ; Queensland) ; Norfolk Island. 



a. ad. sk. (type). Norfolk Island. 



h. $ ad., al. New South Wales. Mr. Kreffit [0.]. 



Inc. g, pm. 2ii2- Ears separate, tragus triangular. 

 (Subgenus Mohmoptekus, Peters.) 



20. Nyctinomus albiventer. 

 Nyctinomus albiventer, Dohson, P. Z. S. 1876, p. 733. 



Ears triangular, shorter than the head, inner margins arising 

 from distinct points of origin from the forehead ; inner margin of 

 the ear-conch almost straight, slightly concave in upper third, tip 

 rounded off, outer margin straight ; antitragus scarcely defined, 

 separated posteriorly by a very shallow notch (Plate XXI. fig. 4) ; 

 tragus nearly as broad opposite the base of its inner margin as high, 

 irregularly triangular, rounded off above, very similar in shape to 

 that of N. norfolcensis, but less triangular and broader above, an 

 obtuse projection about the middle of its outer margin. Extremity 

 of the muzzle projecting very much beyond the mandible, the end 

 of the nose very prominent and distinct from the upper lip ; nostrils 

 opening almost laterally. Sides of the upper lip with vertical 

 grooves not well defined. Gular sac small. 



Wings from the lower third of the tibise or from the ankles ; 

 fifth toe somewhat smaller than the first. 



Dentition similar to that of i\^. acetahulosus (vide infra, p. 441), 

 but the lower incisors are not crowded. 



Pur, above, white at the base, the remaining part dark brown ; 

 beneath, the greater part of the chest and abdomen dirty white, the 

 sides brown. Wing- and interfemoral membranes nearly naked ; a 

 narrow band of fur extends outwards behind the forearm and along 

 the proximal third of the fifth metacarpal bone. 



Length (of an adult $ , the type), head and body 2"-2, tail 1""25, 

 tail free from membrane 0"-7, head 0"'85, ear 0"'65, tragus 0"*15, 

 forearm l"-45, thumb 0"-35 ; third finger — metacarp. 1"'4, Ist ph. 

 0""55, 2nd ph. 0"-7 ; fourth finger — metacarp. 1"'4, 1st ph. 0"'5, 

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

 0"-15 ; tibia 0"-4, foot 0"-3. 



Hab. Madagascar. 



a. 5 ad., al. (type). Madagascar. Purchased. 



21. Nyctinomus acetahulosus. 



Molossus acetabidosus, Commerson, MS. (vide Peters, MB. Akad. Berl. 



1869, p. 402). 

 Nyctinomus acetahulosus. Desniarest, Mammalogt'e, p. 117 (1820); 



'Dobson, P. Z. S. 1876, p. 734. 

 Nyctinomus natalensis, Smith, Illiistr. S. Afr. Zoology, Mammalia, 



pi. 49. 

 Nyctinomus CMormopterus) jugularis, Pders, P. Z. S. 1865, p. 468. 



