EXPLANATION OF PLATES. SiG 
PLATE 42. 
Fiaure 1. Balena glacialis Bonnaterre. Skull from skeleton No. 23077, U. S. National Museum. Long 
Island, New York. Dorsal view. 
FicurE 2. The same specimen. Ventral view. 
PLATE 438. 
Figure 1. Balena glacialis Bonnaterre. Skull from skeleton No. 28077, U. S. National Museum, Long 
Island, New York. Lateral view. 
FIGURE 2. The same species. Skull from skeleton in State Museum, Raleigh, North Carolina. Cape Lookout, 
N.C. Lateral view. Photograph presented by Mr. H. H. Brimley, Curator of the State Museum. 
PLATE 44, 
Ficure 1. Baleena cisarctica Cope. Type-skeleton. Philadelphia Academy of Natural Sciences. Lateral 
view of anterior portion, including the lumbar vertebre. 
FiGure 2. The same specimen. Lateral view of the caudal vertebre. 
PLATE 45. 
FIGURE 1. Baleena glacialis Bonnaterre. Skull from skeleton in Charleston College Museum, South Caro- 
lina. Charleston, S. C, Lateral view. 
FIGURE 2. The same species. Left scapula from the same skeleton. 
FIGURE 3. The same species. Left scapula from skeleton in American Museum of Natural History, New 
York. From Long Island (?), New York. Photograph presented by Dr. H. C. Bumpus, Director of 
the American Museum of Natural History. 
FIGURE 4. The same species. Left scapula from skeleton in Field Columbian Museum, Chicago. Long Island, 
New York. Photograph presented by Dr. D. G. Elliot, Curator of Mammals, Field Columbian Museum, 
Figure 5. The same species. Left scapula from skeleton No. 23077, U. S. National Museum. Long Island. 
New York. 
PLATE 46. 
FIGURE 1. Balena glacialis Bonnaterre. Head of specimen found dead 28 miles off Highland, Cape Cod, 
April, 1895. Photographed in Herring Cove, Provincetown, Mass. 
FIGURE 2. The same specimen. Lateral view. (The flukes are an addition by the photographer.) 
FIGURE 3, The same species. Sternum from skeleton in Field Columbian Museum, Chicago.. Long Island, 
New York. Photograph presented by Dr. D. G, Elliot, Curator of Mammals, Field Columbian 
Museum. 
FicurE 4. The same species. Sternum from skeleton in Museum of Comparative Zoology, Harvard Uni- 
versity. Photograph presented by Mr. Outram Bangs, Curator of Mammals. 
PLATE 47. 
Fiaure 1. Rhachianectes glaucus Cope. No. 18803, U.S. National Museum. Monterey, Cal. Dorsal view. 
FIGURE 2. The same specimen. Ventral view. 
FIGURE 3. The same specimen. Lateral view. 
PLATE 48. 
FIGURE 1. Common Finback. Balcenoptera physalus (L.). Restoration, based on Sars’s figures, amended 
from photographs and sketches of Newfoundland specimens. 
FrauRE 2. Sulphurbottom, Balenoptera musculus (L.). Restoration, prepared in the same manner as Figure 1. 
PLATE 49. 
Fiaure 1. Little Piked Whale, Balenoptera acuto-rostrata Lacépéde. Restoration, based on the Quoddy 
Head, Maine, specimen. 
FIGURE 2. Pollack Whale, Balceenoptera borealis Lesson. After Collett. 
FIGURE 3. Gray Whale, Rhachianectes glaucus Cope. After Scammon. 
PLATE 50. 
FIGURE 1. Humpback, Megaptera nodosa (Bonnaterre). Restoration based on Sars’s figures amended from 
Newfoundland specimens. 
FIGURE 2. North Atlantic Right Whale, Balcena glacialis Bonnaterre. Restoration based on photographs 
of Massachusetts and Long Island specimens. 
