52 CAEKIVORA. 



A. Auclitovy bulla much dilated, rounded, and (except 



in Hi/o'nida') divided into two chambers by a 



septum, liouy auditory meatus short. I'ar- 



occipital procftss flattened against tlie bulla and 



(except in ITi/anido') not projecting behind. 



Condyloid and glenoid foriimiua concealed or 



wantiug. Cajcum small ^LXIROIDEA *. 



a. Head short ; •'» or 4 teetli in upper molar series, 

 y in lower : dorsal vertebrfe 13; claws sharp, 

 curved, and (except in Cyncelurus) com- 

 pletely retractile. Toes 5 — 4 1. Felidae. 



h. Head elongate ; 5 or teeth in mol.ar series of 



each jaw; claws variable. Toes usually 5 — 5. 2. Viverridae. 



c. Head elongate ; 4 teeth in upper molar series, 



3 or 4 in lower, all small and widely sepa- 

 rated ; claws blunt. Toes 5 — 4 Proteleidae. 



d. Head slightly elongate ; o teeth in upper molar 



series, 4 in lower ; dur.-^al vertebr?e 15 ; claws 



blunt, not retractile. Toes 4 — 4 3. HyaenidaB. 



B. Auditory bulla much dilated, rounded but not 



divided. Bony auditory meatus short. Par- 

 occipital process flattened against bulla, but 

 projecting behind. Condyloid and glenoid 

 foramina distinct. Crescum elongate, and gener- 

 ally folded on itself CYNOIDEA. 



a. Premolars ;j^, true molars variable ( ^ ^."jl.^- 

 in all Indian forms) ; claws exserted, blunt, 

 non-retractile. Toes 5 — 4 (except in Lycaon) 4. Canidae. 



C. Auditory bulla not rounded nor divided, most 



prominent on inner border and sloping thence 



forwards, backwards, and outwards, flattened 



off towards the meatus, the lower lip of which 



is prolonged. Paroccipital process prominent, 



quite free from bulla. Condyloid and glenoid 



foramina distinct. No csecuni. Toes 5— 5 .. ARCTOIDEAf. 

 a. True molars ^^ (one tubercular molar behind 

 the sectorial above and below). Noalisphenoid 

 canal 5. Mustelidae. 



h. True molars ^., (two tubercular molars in 



upper jaw, one in lower, behind sectorial) .. (5. Procyonidas. 

 c. True molars ;^^. An alisphenoid canal .... 7. Ursidae. 



Of the above-named families one only, Proteleidce, containing a 

 single species, Proteles cristatus, peculiar to Southern Africa, is not 

 found in the Indian region. The remaining seven are rei)res('iit((l. 



* Foi- anatomical details of classification see Mivart, P. Z. S. 1882, pp. 1,%, 

 4r)9. 



t For auiitouiical details see Mivart, P. Z. S. 1885, p. 340. 



