134 



Rostrum chilomate instructum, labro fisso. 

 Sinus lachrymales nuUi. 

 Fossce inter digitales nullae. 

 FoUiculi ingjiinales nulli. 

 Mamma quatuor. 



2. AUCHENIA : 



Digiti disjunct!, mobiles. 



Rostrum chilomate instructum, labro fisso. 



Sinus lachrymales nulli. 



Fossce interdigitales nuUse. 



FoUiculi inguinales nulli. 



Mammce duse. 



" The Camelida form what Mr. MacLeay would call an aberrant 

 group ; they differ essentially from other Ruminants in the structure 

 both of the organs of locomotion and of mastication, and their ge- 

 neric distinctions consequently depend upon characters which have 

 no application to the remaining groups of the order. On the other 

 hand, the principles of generic distribution which subsist among the 

 rest of the Ruminantia appear to furnish negative characters only 

 when applied to the Camelida;; but though necessarily expressed 

 negatively, the absence of lachrymal, inguinal, and interdigital sinuses 

 forms, in reality, positive and substantial characters, and as such, as 

 well as for the sake of uniformity, should be introduced into the de- 

 finition of these, as well as of other genera, in which they unavoid- 

 ably appear under a negative form. 



Fam. II. Cervid^. 



Pedes bisulci ; cornua solida, plerilmque decidu<a, in mare solo, aut 

 in utroque sexu ; denies primores supra nulli, infr^ octo. 



6 Genera. 



1. Camelopardalis. 



Cornua in utroque sexu, perennia, simplicia, cute obducta. 

 Rhinaria nulla. 

 Sinizs lachrymales nulli. 

 Fossce interdigitales parvee. 

 FoUiculi inguinales nulli. 

 Mamma quatuor. 

 Duo species sunt C. JEthiopicus ct C. Capcnsis. 



2. Tarandus. 



Cornua in utroque sexu, .subpalmata, decidua. 

 Rhinaria nulla. 

 Sinus lachrymales exigui. 

 Fossa interdigitales parva?. 

 FoUiculi inguinales nulli. 

 Mamma quatuor. 

 Typus est Tarandus Rangifcr (Ccrvus Tarandus). 



