148 



certainly clistinguislieil. The genenil similarity in construction of the ninims 

 to that of a cetacean mammal is noteworthy. 



Measurements. 



M. 



Length of the suspensorium anteriorly 0. 1 1 1 



Width of the suspensorium, medially 0.031 



Quadrate, greatest length 0. 09'J 



Quadrate, width of the ala 0. VCM 



Quadrate, thiclcness behind 0. o;!0 



Quadrate, length of the distal extremity 0.043 



Palatine, length of six alveoli 0. 0."-.& 



Anterior dorsal, length of the centrum 0. 050 



Anterior dorsal, width of the eup 0. 0,')1,''> 



Anterior dorsal, dejith of the cup 0. 03rt 



Anterior dorsal, expanse of the posterior zygapophyses 0. 03yr> 



Anterior dorsal, expan.se of the diapophyses - 0. OUl 



Anterior dorsal, width of the neural canal 0.0135 



Anterior dorsal, deptli of the neural oaual 0. Oil 



Posterior dorsal, depth of the ball 0.049 



Posterior dorsal, width of the ball : 0. OJ-2.^) 



Posterior dorsal, length of the centrum 0. OS.':^ 



Posterior dorsal, expanse of tlic diapophyses 0. 088 



Scapula, length 0. 14.''> 



Scapula, width, proximal 0. 070 



Scapula, width, median 0. 112 



Coracoid, width, proximal 0. (KiCi 



Humerus, length 0. l.'>4 



Hnmerus, width, proximal 0. Hi) 



Humerus, width, median 0. (I7.> 



Humerus, width, distal (restored from C. propijlhon) 0. 15M 



Radius, length 0. 111". 



Radius, width, proximal 0. 001 



Radius, width, distal (oblique) 0. 105 



Carpal, length 0. 040 



Carpal, width 0.037 



Metacarpal, length 0.005 



Metacarpal, width proximally 0.045 



Metacarpal, width medially 0.018 



Metacarpal, widih distally 0. 034 



Phalange (medial), length 0.085 



Phalange (medial), width proximally 0. 027 



Phalange (distal), length 0.059 



Ph.alange (distal), width dist.illy 0.0082 



Ramus niandiljuli, dei>th in front of the cotylus 0.056 



Cervical rib, lengtli 0.074 



The total lenylli of the anterior limb could not have been less than 0'".fl(), 



which allows of live phalanges in tiie longest digit. There may have been 

 more. That tlie digits were of unequal lengtli is indicated liy portions ot 

 two in matri.\ accompanying (he specimens, where th(^ articulation of two 



phalanges falls opposite the shaft of one of the adjoining digits. The pha- 

 langes were separaled liy a short interval oi cartilage. 



