90 “TERRA NOVA” EXPEDITION. 
Taste LIT.—Megaptera nodosa, Bonnaterre. European, American, and New Zealand. 
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Total length . . | 30 8 | 31 0} 34 0} 42 0] 13 6 | 46 71] 46 6 | 45 5 | 42 2 | 51 63) 44 OF 
Notch of flukes to || sé 4 y % %, Vs VE Naa %, vs 
anus ; . | 25°0 | 25:2 | 23-7 | 20°0 | 20-9 | 25.82) 24:5 | 24-0) 22-9) — — 
Notch of flukes to | 
navel 3 . | 45:1 | 43°5 | 39-4 | 37°8 | 41°3 | 44°42) 43-3 | 41°8 | 42.4) — _ 
| 
Length of pectoral fins | 
(axil to tip) - | d2°6 | —* | 31-6 | — | 29-6} 31-0 | — | 2821) 28:9 |) 29a else 
1 Straight, from lower jaw. ? From figure. 5 Danish measure. ‘ Approximate. 
The cut-water, mentioned by Struthers as occurring beneath the chin in 
the Tay whale, was a very constant feature in the New Zealand specimens. The 
number of nodes or bosses on the anterior margins of the pectoral fins were 
counted in several individuals, and each fin was found to 
oe have two larger and seven lesser nodes, as in Northern 
Megaptera. 
is The shape of the dorsal fin varied a good deal,* as is 
shown in text-fig. 1; but in each case a basal portion could 
be distinguished which was surmounted by the fin proper. 
gia, The variations in the outline of the dorsal fin were quite 
independent of the variations im the amount of pigmentation. 
Se a end The same type of fin was found in individuals which varied 
Fig. 1.—Outline diagram of greatly in colour. 
15% variations in the shape Behind the dorsal fin, in most of the specimens, the 
ees ane ddoraal ridge of the tail was crenulated, as described by 
Zealand Humpback whale 
(Megaptera nodosa, Bonn.). Andrews in Lehachianectes glaucus.f 
CoLour. 
In the case of thirty individuals the colour was carefully noted, and it was found 
that every gradation occurred in the amount of black and white, as shown in text- 
fig. 2, Nos. 1-4. 
* Cabrera, A., “Fauna Ibérica. Mamiferos,” Madrid, 1914, Cetacea, p. 398. 
} Andrews, R. C., “Monographs of the Pacific Cetacea,’ Mem. American Mus. Nat. Hist., N.S. 
Vol. I., Pt. V., 1914, p. 259. 
