1G0O CASTOR 
VWeasurements Total length, 1070; tail vertebra, 360; scaly por 
tion of tail 290X125; hind foot, 185 Skull: occipito-nasal length, 
t34; Hensel, 122; zygomatic width, 97; interorbital constriction, 22, 
Fia, 80. CASTOR CGC. FRONDATOR 
No, 3s883 U.S. Nat. Mus, Coll yp 
palatal length, 78; length of nasals, 46; length of upper molar series, 
leneth of mandible, angle to alveolus of incisors, 96; height at 
5 
condyle, 22; at coronoid process, §2 
