1921] Frick: Faunas of Bautista Creek and San Timoteo Cafwn 367 



PEOCAMELUS-LIKE SPECIES 



This group embraces three or more small camelicl forms, repre- 

 sented by numerous jaw and tooth fragments and the imassociated 

 portions of limbs. A reference of limbs to dentition has seemed 

 impracticable, beyond calling attention to the fact that teeth and 

 limbs individually evidence the occurrence in the Eden of at least 

 three well defined species of small camels : ( 1 ) A new species, Pro- 

 camelus edensis edensis, and new sub-species, Procamelus edensis 

 raki, based on portions of several series of lower cheek teeth; (2) a 

 new species, Procamelus, species A, based on the portion of a mandible ; 

 (3) two or more indeterminate species, partially or wholly referrable 

 to the above: (a) forms represented by maxillary and premaxillary 

 material; (b) forms represented by stout Procamelus-likQ limb 

 material; (c and d) forms represented by light Procamelus-\i]^Q limb 

 fragments. Should more ample material prove the second premolars 

 of these small forms to be generally missing, this group might be more 

 correctly referred to Pliauchenia than to Procamelus. 



PKOCAMELUS(?) EDENSIS EDENSIS, n. sp. and n. siibsp. 



Type. — The right ramus of a mandible containing portions of the cheek tooth 

 series, the remaining dentition indicated by alveoli, Univ. Calif. Coll. Vert. Pal. 

 23428 (figs. 74 and 81), Univ. Calif, loc. 3269. 



Bef erred material. — A slightly larger form from the same locality, represented 

 by the posterior portion of the right mandible containing portions of Mj and 

 Ms, Univ. Calif. Coll. Vert. Pal. no. 6728 (fig. 7.5). 



Characters (Generic). — The loss of Po and the reduction of P3, 

 thus differing from Procamelus. The anterior position of the appar- 

 ently caniniform first premolar with the position of the canine alveolus 

 in close proximity to that of the first premolar, and the resulting long 

 diastema anterior to the cheek series ; the proportionately high crowns 

 of the molars, as well as the length of the worn series in comparison 

 to that of worn series in the smaller Eden camels. The strength of 

 the mandibular symphysis. 



Measurementssi 



Type specimen 

 Univ. Calif. Coll. 

 Vert. Pal. 23428 



Length, P5 to M3 inclusive , 



Length of molar series 



Length of diastema posterior to P; 

 Length of diastema posterior to C 



107 mm. 

 85.5 

 51 



51 For more complete measurements see comparisons, page 371. 



