168 THE WHALEBONE WHALES OF THE WESTERN NORTH ATLANTIC. 
as far forward as the middle of the right lower lip, and there are a few white 
dashes on the middle of the lip itself. Body very light around the head of the 
humerus. Flanks nearly solid light gray from the line of the pudendum to the 
flukes. Flukes very light underneath, especially nearest the anterior margin. 
Dorsal fin almost white except at the tip and about the posterior free margin. Tip 
of left pectoral white for about one foot or more externally, with lines and white 
markings running proximally nearly to the middle of the length, and considerable 
white along the posterior margin. No light blotches visible on the external face 
of the left pectoral, but there are some on the right pectoral. 
The right side in this whale appears to be lighter than the left. 
No. 15. Male. June 29, 1901. Total length, 63 ft. 6 in. A darkish indi- 
vidual, with very little white on the ridges, and there mostly close under the pec- 
torals, especially at their base. The inferior median line broadly plain gray as far 
back as the anus, though with occasional lighter blotches and marks. Dorsal fin 
with only a few vertical curved light lines on the darker ground-color. (See pl. 
20, fig. 4.) 
No. 17. Male. July 2, 1901. ‘Total length, 65 ft. 8 in. A moderately light 
individual. A considerable number of white spots at the posterior end of the ab- 
dominal ridges, but the clear white does not run on to the flanks. Posterior half 
of the ridges much and finely speckled with dark-gray marks on a lighter ground. 
The belly and breast become darker anteriorly, and the navel region is, therefore, 
the lightest part of the under surface of the body. Some white dashes about the 
anus, but the median line posterior to the navel otherwise mostly dark and finely 
mottled and lined. Back plain dark gray throughout. he lightest part of the 
sides is midway between the line of the dorsal fin and the flukes. No white spots 
anterior to the base of the pectorals. Dorsal fin with a white antero-basal area, 
crossed by vertical curved gray lines. Flukes normal in color, with fore-and-aft 
light lines, or rather a whitish ground-color, with gray lines crossing it. 
No. 18. Male. July 3, 1901. Total length, 72 ft. 2 in. Not a very light 
individual. Flanks, from the line of the orifice of the penis backward, largely plain 
dark gray. A moderate number of white spots on the abdominal ridges posterior 
to the pectorals, and these spots run off on to the flanks inferiorly about as far as 
the orifice of the penis. Scattered white marks are found as far back as the anus. 
Navel white. 
No. 19. Hemale. July 4, 1901. Total length, 74 ft. 6 in. Quite a light 
individual, the sides being nearly all light gray from the line of the anus nearly to 
the flukes. Shoulders the same. One or two light blotches on the right lip at 
the anterior ends of the furrows. 
No. 20. Hemale. July 4, 1901. Total length, 70 ft. 3 in. The inferior half 
of the sides of the body practically all light gray, through the confluence of the 
light blotches. The middle of the sides (longitudinally) posterior to the line of the 
anus much blotched, and the blotches turn to streaks at the base of the flukes and 
run into the lines of the underside of the flukes. Inferior median line posterior to 
the navel blotched. A large amount of white on the abdominal ridges, especially 
