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



Entedon (Horismenus, n.g. Haliday MSS.) Cleodora, Fern. JEneo-ater, 

 antenna nigra, pedes fulvi, femora nigra, alee limpidce. 



Corpus angustum, convexum, aeneo atrum, nitens, laeve, fere glabrum : 

 caput transversum, brevissimum, thorace non latius ; vertex sat latus ; frons 

 impressa, abrupte declivis : oculi rufi, sat magni, non extantes : antennas 

 nigra?, submoniliformes, extrorsum crassiores, tboraee non longiores ; clava 

 fusiformis, acuminata, articulo praecedente plus duplo longior: thorax longi- 

 ovatus : prothorax transversus, brevis, anticeangustus; mesolhoracis scutum 

 transversum, latum; parapsidum suturae non bene determinate ; scutellum 

 subrhombiforme, unisulcatum, postice latum ; paraptera et epimera magna : 

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

 crassus : abdomen ovatum, convexum, subtus carinatum, apice acuminatum, 

 thorace paullo brevius; segmentum l am maximum; 2 ,,m et sequentia bre- 

 vissima: pedes fulvi ; coxae nigra?; femora nigra, apice fulva ; tarsi 4-arti- 

 culati ; articulus l us brevis ; ungues et pul villi minuti : alae limpidae, hirtae ; 

 squamulse piceae ; nervi fulvi ; nervus ulnaris humerali duplo longior, ra- 

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

 li; alar. lin. 2.) 



[To be continued.] 



XXI. — Descriptions of some new genera and species of Mam- 

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

 Esq. 5 F.R.S., Keeper of the Zoological Collection in the 

 British Museum. 



Fam. Vespertilionid^:. 



Mosia (n. g.) Vespertilionina ? Cutting teeth -g-, the upper oblique, 

 far apart ; wings thin ; head small, hairy ; forehead flattened, rather 

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

 front ; nose rounded ; nostrils apical, roundish, not produced, 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 Vespertilio, but it 

 has the tail of an Embalanura ; it differs from that genus in the nose 

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

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

 nina. 



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

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



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



This may be the Vespertilio 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. 



