608 The American Naturalist. (July, 
Maryland to North Carolina. The species from the Miocenes of 
Belgium and Australia have the pulp-cavity very small. The 
Kogias or pigmy sperm whales are found in all southern and 
tropical seas. A single extinct species, the A. dubusa Van Ben. 
has been found in the Miocene beds of Belgium. Hoplocetus 
carolinensis Leidy is from the phosphatic deposits of South Carolina, 
But one extinct species of Anarnacus (Hyperoödon) (Fig. 5), has 
FIG. 5.—Anarnacus rostratus Wesm, from a photograph taken at Newport, R. I. 
been yet found (in Belgium), but species of Choneziphius are 
abundant in the Miocene beds of both Europe and North Amer- 
ica, Five species have been described by Leidy from the South 
Carolina phosphatic beds, of which the most conspicuous is the 
C. trachops. Mesoplodon is represented in the same formations 
by one species, the M. prorops Leidy. A species of each genus 
still lives on the coast of the United States, the Choneziphius 
gs Cope (Plate XX.), and the Mesoplodon bidens Sow- 
erby. 
