134 



Rostrum chilomate instructum, labio fisso. 

 Sinus lachryynales nuUi. 

 Fossee interdigitales nuUae. 

 FoUicuU inguinales nulli. 

 MamrtKB quatuor. 



2. AUCHENIA : 



Digiti disjuncti, mobiles. 



Rostrum chilomate instructum, labro fisso. 



Šimts lachrymales nulli. 



Foss(E interdigitales nullae. 



FoUicuU inguinales nulli. 



Mammce duae. 



' ' The Camelidce form what Mr. MacLeay \vould call an abenant 

 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 

 ręst of the Ruminantia appear to fumish negative characters only 

 \vhen applied to the Camelidte ; but though necessarily expressed 

 negatively, the absence of lachrj^mal, 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 W'hich they unavoid- 

 ably appear under a negative form. 



Fara. II. Ceevid^. 



Pedes bisulci ; cornua solida, pleritmąue decidua, in mare solo, aut 

 in utroąue sexu ; dentes primores supra nulli, infržl octo, 



6 Genera. 



1. Camelopardalis. 



Cornua in utroąue sexu, perennia, simplicia, cutc obducta. 

 Rhinaria nuUa. 

 Sinus lachrymales nulli. 

 FosscE interdigitales parvae. 

 FoUicuU inguinales nulli. 

 MammcE ąuatuor. 

 Duo species sunt C. ^thiopicus et C. Capensis. 



2. Tarandus. 



Cornua in utroąue sexu, subpalmata, decidua. 

 Rhinaria nulla. 

 Sinus lachrymales exigui. 

 Fossee interdigitales parv'pe. 

 Folliculi inguinales nulli. 

 MammcE ąuatuor. 

 Typus est Tarandus Rangifer {Ccrvus Tarandus). 



