THE WHALEBONE WHALES OF THE WESTERN NORTH ATLANTIC. 165 



No. 3. female. Jime 21, 1901. Total length, 73 ft. 10 in. Superior sur- 

 face of the head to the eye, and as far back as the head of the humerus, uniform 

 gray. The white spots of the belly are few and are confined to an area running 

 obliquely from the base of the pectorals to the navel. Those of the two sides 

 do not meet in the median line until nearly at the navel. From the navel to the 

 clitoris the inferior median line is dark gray and without spots. On the sides of 

 the body the light spots are exceedingly numerous and occupy a larger area than 

 does the darker color. Their long axes have definite directions. They sweep 

 around the base of the pectoral fin and are then directed obliquely downward and 

 backward above the posterior ends of the abdominal ridges. They then point di- 

 rectly backward, or those of the upper rows upward and backward toward the top 

 of the caudal peduncle. The sides of the caudal peduncle have more of the light 

 color than the dark, and the same is true on the shoulder. The pectoral fins are 

 white externally for about 6 inches from the tip, but the light gray spots do not 

 extend forward from the base as much as in No. 2. The base of the flukes under- 

 neath is light gray anteriorly, with darkish flue lines running fore and aft, growing 

 darker toward the posterior margin of the flukes, which is quite dark gray. (See 

 pi. 13, fig. 2.) 



No. 4. Female. June 22, 1901. Total length, 73 ft. 6 in. The sides of the 

 body have more light color than dark, except above the pectoral fins (when 

 laid back). The light color extends forward to a line drawn between the eye and 

 the inferior median line opposite the head of the humerus. The inferior median 

 line from the anus backward is plain gray. The spots of the two sides come to- 

 gether in the median line between the navel and clitoris ; behind the anus they 

 extend downward but do not meet in the median line. White spots on the breast 

 very few, not reaching the median line. White dashes about the sides of the anus 

 and pudendum. From the dorsal to the flukes, the sides of the caudal peduncle 

 are nearly all light colored up to within about a foot of the superior edge, where 

 the color is nearly all dark. Base of flukes below finely lined with darkish gray 

 streaks running fore and aft, but curving inward toward the median line. 



No. 5. Male. June 22, 1901. Total length, 68 ft. 3 in. A very light 

 individual, light gray all over, the head alone being darker. The white blotches 

 on the abdominal ridges are numerous and very white, and run off the posterior 

 ends of the ridges along the flanks in the form of narrow elongated markings, quite 

 unlike the elliptical gray blotches of some of the preceding specimens. Much white 

 around the navel and some behind the anus. From a point about opposite the- 

 orifice of the penis, the white markings of the sides almost disappear, but they reap- 

 pear in moderate abundance behind the line of the anus for a foot or two. This 

 No. 5 has three large irregular white scars on the right side. The right pectoral 

 has much of the posterior margin torn and irregular, and the tip broken. (See pi. 

 18, fig. 1.) 



No. 6. Male. June 24, 1901. Total length, 65 feet. The light blotches of 

 the sides meet in the median line between the navel and orifice of the penis. They 

 are especially numerous at the posterior end of the ridges and are whitest there. 



