20 ‘CETACEA. 
‘ & 
able manner, not only as to the situation of the umbilicus 
other parts, but in the breadth of the tail, the length of the 
and arms. This, however, is what should be expected, supposing” 
Mr. Hunter’s to have been a young animal, because such pro: 
portional superiority in size of the extremities is characteristic 0: 
the earlier periods of life.” 
_ In the following table (observes Dr. Jacob), the first column 
contains the dimensions of each part in feet and inches; the 
second, the proportion which each measurement bears to the en- 
tire length of the animal, which is supposed to be 1000. 4 
bs 
4 
Hunter, | Scoresby,| Neils, Sibbald, |Dr. Jacob,| Sibbald, | 
17 ft. 17 ft. 6 in. 43 ft. 46 ft. 70 ft. 78 ft. 
| | | | ee 
Breadth of tail ...... 5 0|294|4 6|257|10 6/232] 9 6|206|14 0} 200/18 6) 237 
Length of arm ...... 2 4|137|2 0]114] 5 0}116] 5 0/108] 7 0} 100)10 0) 128) 
Navel to tail ........ 8 0); 470|.. a ifradt SH f 30 0] 428 | 
ANUS tO tail) 6.5... 6 4 4)254].. - <j 14 0| 304 |20 0) 285 
RTO GALL Fe asia) aise i0,0 4 9|279|4 6|2571|12 0|279| 8 6} 184/20 0) 285 
ASABE oils 's ale'slo slays nis’ 3 3/194|3 6]200/14 0} .. |10 0) 217)|15 0/214 /13 0 166 | 
Horny plates........ 0 5| 24/0 6] 28] 1 6) 34] .. 3 0) 42) 3 0) 38 
Breadth of fin........ 10} 58/1 3] 71] 2 6) 58]/.. 2 6} 35| 2 0} 25 
Blade-bone to snout..|2 6|147]3 0}171| .. | .. | 6 8} 144 ; 
Eye to ear .....+.... 1.0] 58]... : rc 3 6] 50 
Height of fin........ be ttee? LO O)) aa aan oe 1 6| 21] 3 0} 38) 
b 
2. In the ‘ Zoology of the Erebus and Terror’ I gave the 
following table of the measurements of specimens taken from the 
various authors cited, in feet and inches :— 
< 2/3 \8) eo. 
a | g | 28 1 eee 
£/é& 1s log )3 ae 
5] 3 By 3S 3) I 
wn a n > nN m pq 
0 fo Le) Or OF Or OF ue 
Length, entire.......... 78°0 | 42°0 | 40°0 | 25°0 | 17°6 | 17°0 | 14°0 
fe tO TMOULE . . <.. 3's ce ne = 4°8 ae 3°3 | 2°8 
to pectoral ..... 19°7 | 10? | 12°0 69 | 5:0 60 | 4°10 
tO DAVE: sicots si F, 21:01), 13867 
to genital organ | .. oe. | 200 u| 16s 
to vent or front 
of dorsal...... 62°0 | 30°0 | 28°0 | 18°1 | 12°6 | 12°3 9°38 
Bi Gorsalyn.. 6.4%», 3°0 Ne a 1°3 10 
.... of pectoral fin..| 10°0 | 44 | 3°7 | 3:1 | 2°0 | 2°41) 1°10 
Breadth of pectoral...... 2165) 208 0°68 | 0°7 | O99 | O11 
Bee OR EBM chee sia LOAD $4 ae 4°6 5°0 
The older specimens, viz. Sibbald’s male, 78, Ravin’s, 42, ane 
Schlegel’s, 40, and Van Breda of Ostend’s female, 82 feet long, 
