314 THE WILALEBONE WHALES OF THE WESTERN NORTH ATLANTIC. 
PLATE 18. 
Ficure 1. Balenoptera musculus (L.). No. 54. Ventral view, showing small amount of light color on the 
abdominal ridges. 
FIGURE 2. Thesame species. No. 219. Ventral view, showing large area of whitish color on the abdominal 
ridges. 
FIGURE 3. The same species. No. 99. Ventral view, showing large amount of light color on the abdomi- 
nal ridges. 
Figure 4, The same species. No. 99. Showing the profuse light spots on the belly. 
All specimens from Balena Station, Hermitage Bay, Newfoundland. 
PLATE 19. 
Figure 1. Balenoptera musculus (L.). No. 74. Ventral view, showing small amount of light color on the 
abdominal ridges. 
FIGURE 2. The same species. No. 89. Navel region. 
Figure 3. The same species. No. 23¢. Lateral view of the mammary fosse and pudendum, showing the 
slight projection of these parts. 
FIGURE 4, The same species. Piece of skin from the flanks, showing mottled coloration. 
; All specimens from Balena Station, Hermitage Bay, Newfoundland. 
PLATE 20. 
Figure 1. Balenoptera musculus (L.). No. 82. Pudendum, mammary fossz, and anus. (The mamme are 
in the furrows which are intermediate between the median line and the external furrows.) 
FiGuRE 2. The same species. No, 219. Pudendum, mammary fosse, and anus ; for comparison with pre- 
ceding figure. (The mammez are in the long furrow nearest the median line on each side) : a. clitoris ; 
b. mammary fossa; ¢. orifice of vagina ; d. anus. 
FIGURE 3. The same species. No. 114. Orifice of penis sheath and mammary fossee containing rudimentary 
mamme : a. orifice of penis sheath; 6. mammary fosse. 
FicurE 4. The same species. No. 154. Ventral view, showing (a) penis sheath ; (b) mammary fossa, and 
(c) anus. 
All specimens from Balena Station, Hermitage Bay, Newfoundland. 
PLATE 21. 
Ficure 1. Balenoptera musculus (L.). No.8. Pectoral fin, showing abnormal extremity. Dorsal view. 
FIGURE 2. The same. Ventral view. 
FIGURE 3. The same species. No. 21¢. Left pectoral. 
FIGURE 4, The same species. No. 74. Left pectoral, showing incised extremity. 
FIGURE 5. The same species. No. 49. Left pectoral. 
All specimens from Balena Station, Hermitage Bay, Newfoundland. 
PLATE 22. 
Figure 1. Balenoptera acuto-rostrata Lacépéde. No. 20931, U. S. National Museum. Off Monomoy 
Point, Harwichport, Mass. Young. Dorsal view. 
FIGURE 2. The same species. No. 13877, U. S. National Museum. Coast of Norway. Adult. Dorsal view. 
PLATE 23. 
Figure 1. Balenoptera davidsoni Scammon. Type-skull. No. 12177, U. 8. National Museum, Admiralty 
Inlet, Puget Sound, Washington. Dorsal view. 
FIGURE 2. The same species. No. 61715, U. 8. National Museum. St. Paul Island, Pribilof Group, Bering 
Sea. Dorsal view. 
PLATE 24, 
FIGURE 1. Balenoptera acuto-rostrata Lacépéde. No. 20931, U. S. National Museum. Off Monomoy 
Point, Harwichport, Mass. Young. Ventral view. 
FIGURE 2. The same species. No. 13877, U. S. National Museum. Coastof Norway. Adult. Ventral view. 
PLATE 25. 
Figure 1. Baleenoptera davidsoniScammon. Type-skull. No. 12177, U.S. National Museum, Admiralty 
Inlet, Puget Sound, Washington. Ventral view. 
FIGURE 2. The same species. No. 61715, U.S. National Museum. St. Paul Island, Pribilof Group, Bering 
Sea, Ventral view. 
