ON BELMULLET WHALING STATION, 161 
figures Aes in Table II., viz., 64 feet 8 inches and 63 feet 2 inches 
for mature females and males respectively, compared with True’s 
corresponding figures, viz., 63 feet 10 inches and 60 feet 5 inches for 
Newfoundland specimens, again show that the latter are shorter on 
the average than European individuals. 
With regard to the differences between the averages and maxima 
for Newfoundland and European specimens, True concludes that there 
are no sufficient grounds for doubting ‘the specific identity of the 
““Common Finback’’ of the eastern and western Atlantic.’ - 
Although the species is almost certainly the same on both sides of 
the Atlantic, there is no reason to suppose that the individuals range 
over both eastern and western sides.°°. As these whales travel in 
‘schools’ or herds, there is no reason why the average lengths in 
different ‘ schools’ should not be different, and it has not been proved 
that the ‘ schools’ of the east and west mix, the general movements 
being north and south. 
2. Balenoptera sibbaldii (Gray), the Blue Whale.—Table III. is 
constructed for this species in the same way as Table I. for the common 
‘Finner.’ One individual was captured before my arrival, so that its 
sex is not recorded. The table shows that this species is captured all 
through the season. It will be noticed that all four specimens 
examined by me were females. 
Taste IlI.—Balenoptera sibbaldii (Gray). 
owes Number Date of Capture Sex Total Length | 
He..giRave 1, 
1 May 30 ? CASA 
2 July 14 fe) 5 
3 bad a 2 84 (0 
4 pete ae 2 64 6 | 
5 Aug. 11 Q 70 20 | 
‘able IV. corresponds for this species to Table II. The number 
of individuals is very small, so that the averages are not so trust- 
worthy as those obtained from Table II. 
Taste IV,—Balenoptera sibbaldii (Gray). 
| Average for all | 
Specimens of both 
Sexes 
Maximum Minimum 
for Females | for Females 
Average for 
Mature Females 
Average for all 
F 
emales 
No.| Length |No.| Length [No.| Length | Length Length 
Ft. in. Fin. | | Fein Ft. Ft. in. 
Pic. 6 | 4). H 4 | 2 | 83).6 84 64 6 
From seventy-two individuals Cocks obtained an average of 
74 feet 10 inches for all individuals of both sexes from Norwegian 
stations. This agrees very closely with the figure given in Table IV., 
yiz., 74 feet 6 inches. The corresponding average given by True for 
3° Vide above, iii., 5. Probable varieties of common Finner. 
1912. M 
