806 MR. J. B. PERRIN ON BALENOPTERA ROSTRATA. [Dec. 6, 
ft. in. 
From termination (apex) of dorsal spinous epics to the apex 
ofreach lateralshalf offal. yo555% 36,07 deren mh ae oem ay 1A 
Denth-of fissare tarball 25 «oie ofa .ss 0:4 peninna Taam aingegeis 0 14 
Extreme breadth of tail ................ Stage avs Suan sy ig te 
Width of dersal-Gavat tis base... «, siis\-elvcteate.cuctinae ee 
Extreme dength.of dorsal fin .:s,.:0 eait/ait:¢, cis tee «5 sites, toe Quid 
Height of dorsal fin from apex to posterior basal ridge. 0 6 
Girth of trunk opposite the bases of the flippers (underneath 
BU RETS) © ciara a Meche aeons % 5:6 RMN Tink] dinnw bah gue Bsa teed lates 6 8 
iGirthdin front ef. GOrsne any 2 ni3 ct fe oieca estrus 2 nnin hie ein 5 0 
Girth) foot-from bare alGall ooo 5. asi ais, cinlaipia <= es aie 2 8 
Girth 2 feet in front of dorsal fin, 7. e. about midway be- 
tween dorsal fin and flipper....... 5 1l 
Length of baleen, measured along its outer side (from ‘base 
to point of termination in median line in front)........ 2 7 
(Greatest wide Of Dalen se) ec wis.'ms vin’ ayn 8 oun fein oun =, ee te 0 37 
DGANt; WAGE) OF NEACEIN cre cakes alain a, 6 Oe eles cers, o Sian 0 
Number of plates in each lateral half of baleen 330 ; total 660. 
A line drawn transversely across between the anterior angles 
of the eyes crosses the summit of forehead 2} inches from 
posterior extremity of median nasal groove. 
Distance from posterior extremity of blow-hole to this trans- 
BORE VEE Se a ek ohn nite iet weciets ira a Canine a oe (O. sae 
Width framege FOC ybl 2s. cas 670. . see bie whee eis, 2 Were ee ee 
The groove between the blow-holes measured 7 inches, projecting 
an inch in both the anterior and posterior directions beyond the 
blow-holes. In the specimen described by Carte and Macalister 
the nasal groove commenced an inch in front of the anterior com- 
missures of the blow-holes, and fell short of their posterior com- 
missures by about the same distance. The posterior extremity of 
each blow-hole was wider than the rest of the groove, and the mar- 
ginal commissures in this situation were marked by rugze or folds. 
No hairs were discernible on the nasal commissures. ‘There were, - 
however, two small hairs on the integument covering the apex of the 
lower maxilla, which could be distinctly seen. The auditory aper- 
tures could not be found. 
The palpebral fissure extended for a considerable distance both 
forwards and backwards beyond the ocular aperture, the anterior 
portion extending a little more than 2 inches, the posterior a little 
less than | beyond it. 
The lower jaw projected 1? inch more forward than the upper 
on snout. 
The integument covering the whole of the dorsal surface of the 
animal was of a dusky black, whilst that of the ventral surface was 
white intermingled with pink, the latter approaching here and there 
to an almost red colour. This was probably due to exposure to the 
air. This difference in colour of the integuments on the two sur- 
faces of the body gave a remarkably beautiful appearance to the 
