COMPARISON WITH THE SOUTHERN SEA ELEPHANT. 749 



iu respect to the skeleton I have uo account to render, rny 

 material being restricted to the before-mentioned skins and 

 skulls. As a contribution to the history of the genus, how- 

 ever, I append measurements of the principal parts of an old 

 male skeleton of the Southern Sea Elephant, one of two nearly 

 complete skeletons in the Museum of Comparative Zoology, 

 obtained by Captain Edwin Church at Hurd's* Island, and re- 

 ceived from Mr. R. H. Chapell, of New London. 



Measurements of the principal parts of the skeleton in Macrorhinus leoninus 



($ ad.}. 



MM. 



Length of the skull 480 



Length of the cervical vertebrae 570 



Length of the dorsal vertebras 1, 690 



Length of the lumbar vertebrae 670 



Length of the sacral vertebrae 250 



Length of the caudal vertebrae (approximate) 680 



Length of the scapula 330 



Length of the hunierus - 335 



Length of the radius 310 



Length of the inarms (approximate) 550 



Length of the pelvis 390 



Length of the femur 200 



Length of the tibia 415 



Length of the pes (appi'oxiruate) 450 



Length of the os penis 335 



Length of the whole skeleton .- 4, 340 



Length of the fore limb (excluding scapula) 1, 195 



Length of the kind limb 1, 065 



Peters t states that the skull of a male, apparently an old 

 animal, from Kerguelen Island, measures 50 centimetres, and 

 the vertebral column 370 centimetres, substantially the same 

 as the above. The skull is intermediate in length between the 

 two of which measurements have already been given (antea, 

 p. 748) ; the length of the vertebral column given by Peters is a 

 little (16 centimetres) less, but this may be due to differences 

 in the mode of measurement, as I have included the probable 

 length of the intervertebral cartilage. 



COMPARISON WITH THE SOUTHERN SEA ELEPHANT. So 

 far as can be determined by descriptions, the Northern and 



* This name I find variously spelled by different writers, to wit: "Herd's," 

 "Hoard's," and "Hurd's." 

 t Monatsb. der K. P. Akad. der Wisseusch. zu Berlin, 1877, p. 393, footnote. 



