NOTES ON A PORPOISE FROM THE HAWAIIAN ISLANDS. 
815 
Dr. Abbott furnished a few measurements of his specimens/' These are most 
numerous in the case of No. 36049 U.S.N.M.. male, from Amirantes Islands, and this 
specimen is fortunately almost the same size as the Hawaiian one of which the sketch 
was made. Measurements from the latter, compared with those recorded by Dr. 
Abbott, are as follows: 
Measurement. 
U.S.N.M. 
36049, male, 
Amirantes 
Islands. 
U.S.N.M. 
112833, 
Hawaiian 
Islands. 
Total length 
Inches. 
74 
Inches. 
Tip of rostrum to base of dorsal fin 
♦ 33 
35 
Height of dorsal fin 
5. 75 
7 
Breadth of flukes 
17 
18 
Length of pectoral fin 
10 
11.5 
This correspondence of external proportions tends to confirm the opinion derived 
from the cranial proportions, that Dr. Abbott’s specimens and the Hawaiian ones 
belong to the same species. 
In one of Dr. Abbott’s specimens, No. 36031 U.S.N.M., a female 6 feet 1 inch 
long, the girth at the anterior base of the dorsal fin was 38 inches. As the Honolulu 
specimen, which was 6 feet 4 inches long, had a girth of only 33 inches at this point, 
the opinion that it was a male is thereby strengthened, since the males are generally 
more slender than the females. 
The phalanges in Hawaiian specimen No. 112833 and in three of Dr. Abbott’s 
specimens are as follows: 
Digits. 
U.S.N.M. 
36048, 
Johanna 
Islands. 
U.S.N.M. 
36049, 
Amirantes 
Islands. 
U.S.N. M. 
36051, 
Providence 
Islands. 
1 U.S.N.M. 
112833, 
Hawaiian 
Islands. 
1 
1 
2 
ii’.::::::::::::::::::::::::::::::: 
8 
8 
8 
8 
in 
5 
5 
5 
6 
IV 
2 
2 
2 
2 
V 
1 
0 
1 
The type of P. capensis (Gray), which I believe to be identical with P. attenuatus 
(Gray), was from the Cape of Good Hope. If the other specimens mentioned 
herein belong to that species also, as I believe they do, P. attenuatus would appear 
to range from the Cape of Good Hope through the Indian Ocean and across the 
South Pacific to Hawaii. The specimens described by Dr. Lixtken in 1889 , b which 
appear to belong to P. attenuatus , would extend the range of the species into the 
South Atlantic and as far north as a point about midway between St. Paul Islands 
and the Cape Verde Islands. 
b Liitken, C. F. Vidensk. Selsk. Skr., 6 Raek., natur. Afd.; 5 Bd., 1, 1889, p. 45. 
FJ3. B. 1903, Pt. 3—4 
a Op. cit., p. 35. 
