109 



Ih. Skull cuneiform, very broad and high, tapering rapidly forwards : broadest 

 between the posterior roots of the malar bones. Malar bones well developed. 

 Tympanic bullae developed. Paroccipital process atrophied. Carotid foramen 

 present. Pelage very soft. {Chrysochloroidea.) 



CHRYSOCHLORIDAE. 

 TUPAIOIDEA 



II. TUPAIIDAE. 



Genera. 



Tupaia, Raffles, ]82l?,=Sorexglis Diard (fideDesm., 1822,)=:Glisorex, Desmarest, 

 ]822,=Cladobates, F. Cuvier, 1825 =Hylogalea, Temm., 1824,=;Cladobates, 

 F. Cuv., 1825. 

 Dendrogale, Gray. 

 Tupaja, Gray. 

 Ptilocercus, Gray, 1848. 



III. MACROSCELIDIDAE. 



SUBFAMILIES. 



Incisor (|) teeth well developed in upper jaw. Skull narrow between orbits ; with 

 the snout moderately produced ; with no postorbital processes ; with the pterygoid 

 fossa protended to the hinder margin of palate. Palate with extensive vacuities. 

 Infraorbital canal very short. Lower jaw with its angle elongated. Vertebrte 

 characteristic. Lumbar six or seven ; cervical with spines rudimentary. Fore- 

 arm with radius and ulna anchylosed. Extremities (all) with five digits. 



MACROSCEUDINAE. (A.) 



Incisor (;j or " ) teeth exiguous or absent in upper jaw. Skull broad between orbits ; 

 with the snout much produced ; with a distinct postorbital process bounding 

 the orbits behind ; with the pterygoid fossa not protended to the hinder margin 

 of palate. Palate completely ossified. Infraorbital canal very long. Lower 

 jaw with its angle very short. Vertebrae characteristic ; lumbar eight ; cervical 

 with spines moderate. Fore-arm with radius and ulna separate. Extremities 

 (all) with four digits. 



R H YNCHOC YONINAE. ( B. ) 



A. MACROSCELIDIXAE. 



Genera. 



Macrcelides, A. Smith, 1829=Eumeres, I. Geotfr. St. -Hi!., 1829=Ehinomys, 

 Lichtenstein, 1833. 



Petrodroraus, Peters, 1846. 



Khynchocyon, Peters, 1847. 



B. RHYNCHOCYOXINAE. 

 Genus. 



ERINACEOIDEA. 



IV. ERINACEIDAE. 

 SUBFAMILIES. 



Erinaceids with a rudimentary tail, and pelage in which robust spines are devel- 

 oped. Skull comparatively broad ; with the muzzle short ; scarcely constricted 

 between the orbits. Foramina sphenopalatiuum and rotundum near each other. 

 Palate imperfectly ossified ; with two elongated vacuities. Teeth : Pm., f ; I., f ; 

 last molar (M., f ) much reduced ; upper I., f X 2 ; canine teeth small (each 

 generally with two roots.) Vertebrae modified; axis with the spinous process 

 very slight ; sacral three. Pelvis with the ischial tuberosities little prolonged 

 backwards. 



ERINAOEINAE. (A.) 



Erinaceids with a more or less developed tail, and pelage with no decided spines. 

 Skull comparatively narrow, with the muzzle more or less elongated, more or 

 less constricted between the orbits. Foramina sphenopalatiuum and rotundum 

 remote from each other. Palate completely ossified ; without vacuities. Teeth : 

 Pm., ^ ; I., f ; last molars well developed ; canine teeth enlarged (with one or two 

 roots). Vertebrae modified ; axis with the spinous process enlarged ; sacral 

 four or five. Pelvis with the ischial tuberosities much prolonged backwards. 



GYMNURINAE. (B.) 



