8 MAMMALS OF EASTERN MASSACHUSETTS 



cate in front. Lower jaw very narrow in front with 22 to 

 24 large teeth on each side. See Plate 3. 



Pigmy Sperm Whale. Kogia breviceps (Blainville). 



Very rare. One specimen taken at Nahant where it came 

 ashore on the Beach Oct. 30th, 1910. A cast of this speci- 

 men by the author is now on exhibition at the Boston So- 

 ciety of Natural History. It is about 12 feet long. Shape 

 very much like the larger " Sperm whale." The under jaw 

 has very slender curved teeth set about an inch apart. It 

 also has a small dorsal fin. Color black on back, white be- 

 neath, extending up on side as far as flipper. Length 10 to 

 15 feet. See Plate 4. 



Bottle-nose "Whale ; Pug- Head Whale. Hyperoo- 

 don ampullatum (Forster). 



Length 15 to 20 ft. Color, Black above, Grayish White 

 beneath. Old specimens have a more or less vertical fore- 

 head terminating in a decidedly pointed Snout or Beak; 

 in the younger ones the forehead is much lower and 

 rounded. There are two teeth present in the lower jaw 

 near the end which are loosely buried in the gums and 

 barely visible above them. This Whale inhabits the North 

 Atlantic ocean. There is no record of its having been 

 taken in Essex County, and the only record for the State 

 is of one taken at North Dennis, Mass. A few years ago 

 one came ashore at Wells Beach, Maine, a cast of which 

 was made by the author for the Boston Society of Natural 

 History, where it is now exhibited. It was a young male, 

 about 15 feet long. 



Sowerby's whale ; Two- toothed whale ; Cowfish. 



Mesoplodon bidens (Sowerby). 



Length 16 to 20 feet. Front of skull vertical in full 

 grown specimen sometimes projecting in very old ones. 

 Beak very prominent. Male with one tooth on each side of 

 lower jaw at about the middle. Female toothless. Color. 

 Uniform black all over. 



This is a pelagic species and extremely rare. There is 

 one record for the County. A young female came ashore 

 at Annisquam, Cape Ann in August, 1898, the skeleton and 

 photographs of which are now in the Museum of the Bos- 



