Mr. Gray on new Genera and Species of Mammalia. 117 



Entedon (Horismenus, n.g. Haliday MSS.) Cleodora, Fem. /Eneo-ater, 

 antennce nigrce, pedes ftilvi, femora nigra, alee fimpidce. 



Corpus angustuin, convexuin, .-rneo atrum. niteiis, lieve, fere glabrum : 

 caput transversum, brevissimuni, tliarace non latius; vertex sat latus ; frons 

 impressa, abrupte declivis : oculi rnfi, sat niagni, non extantes : antenna 

 nigrte, submoniliformes, extrorsuni crassiores, thorace non longiores ; clava 

 fiisiforniis, acuminata, articulo priecedente plus duplo longior: thorax longi- 

 ovatus : prothorax transversus, brevis, antice angustus: mesothoracis scutum 

 transversum, latum; parapsiduni suturae non bene determinatai ; scutellum 

 subrhombiforme, unisulcatuin, postice latum ; ])araptera ct cpimera magna: 

 nietatliorax sat magnus, declivis, obconicus, nigro-viridis : petiolus brevis, 

 crassus: abdomen ovatum, convexum, subtuscarinatum, apice acuminatum, 

 thorace panllo brevius; segmentum 1"™ maximum; 2""" et sequentia bre- 

 vissima: pedes fulvi ; coxse nigrce ; femora nigra, apice fulva ; tarsi 4-arti- 

 culati ; articulus 1"* l)revis ; ungues et pulvilli minuti : alae limpidae, hirtre j 

 squamuIjE picese ; nervi fulvi ; nervus ulnaris humerali duj)lo longior, ra- 

 dialis vix ullus, cubitalis brevissimus ; stigma minimum. (Corp. long. lin. 

 li; alar. lin. 2.) 



[To be continued.] 



XXI. — Descriptions of some neio genera and species q/" Mam- 

 malia in the British Museum Collection. By J. E. Gray, 

 Esq., F.R.S., Keeper of the Zoological Collection in the 

 British Museum. 



Fam. Vfii^PERTILIONIDiE. 



Mosia (n. g.) Vesper iilionina } Cutting teeth --^, the ujipcr obhque, 

 far apart ; wings thin ; head small, hairj' ; forehead flattened, rather 

 concave in front ; lips rather thick, lower with a triangular wart in 

 front ; nose rounded ; nostrils apical, roundish, not protluced, and 

 without any groove on its hinder edge ; ears moderate, lateral ; tragus 

 elongate, well- developed ; interfemoral membrane large, truncated ; 

 heel-bone rather long ; tail slender, tip produced on the middle of 

 the upper surface of the membrane ; hind feet small ; wings from the 

 base of the toes. 



This genus has all the external appearance of a VespertiUo, but it 

 has the tail of an Embalamira ; it difters from that genus in the nose 

 not being produced and truncated, and the nostrils not tubular. It 

 appears to be the link between the VespertilionincE and the Nostilio- 

 nince. 



Mosia nigrescens. Fur brown, rather paler below ; wings black- 

 ish ; tragus elongate, linear, blunt. Length of body, l^inch. 



Hab. South America ? Capt. Belcher, R.N. 



This may be the VespertiUo canina of Prince Neuwied, Embala- 

 nura canina of Temm. ; but the tragus of that species is described as 

 very short, broader above and with a constriction at the base, and the 

 animal as considerably larger. 



Kerivoula Brasiliensis . Blackish ; hairs with brownish tips, beneath 

 rather paler ; ears large, acute, bent back. 



Hab. Brazils. 



