PHY8ETER — KOGIA. 75 



surface continued thick round border of mouth, and 

 divided by deep depression into anterior and posterior 

 convexities, ahnost equal ; arched Eustachian end of 

 cavity opens close to the inferior surface. Petrosal, 

 2^ inches by Ih inch broad, articulates with tympanic 

 by a broad process, surface of which is striated and 

 concavo-convex. Described by Turner, Froc. Roy. 

 ,Soc. Edin., 1903. Figures, p. 74. 



13. Mandible of a young Cachalot, not fused at the symphysis ; 



length 6 feet 9 inches, length of symphysis 3 feet 

 4 inches. Caught in the lat. of Azores, North 

 Atlantic Ocean. Donor — Dr F. B. Archer, Barbados. 



14. Teeth, forty-four in number, from the mandible of No. 13. 



The pulp cavity is proportionally large. 

 Barbados, 1871. Donor— Dr F. B. Archer. 



15. Teeth, three mandibular, 



N. Harris, 1905. Donor — Dr Duncan Fletcher, 



through Professor Chiene. 

 1(). Tooth from a Sperm Whale captured at Dunstaiihage 

 Bay, Oban, in May 1829. See Turner in Proc. Roy. 

 Soc. Edin., vol. vii. p 365, 1872. 



Donor — Dr John Alex. Smith. 



17. Teeth, two mandibular; the longer is 8| inches, the 



shorter is 7 inches. 

 Purchased from Woodcock Collection, Anstruther, October 

 15, 1887. Turner Collection. 



18. Teeth, two mandibular, brought from St Helena, 



November 1900. Donor — Professor Chiene. 



19. Tooth, mandibular, 8 inches long, from an adult Sperm 



Wliale. 



20. Teeth, two mandibular, from a relatively young Cachalot. 



In one the crown is only slightly worn and the pulp 

 cavity is smooth. In the other, one side of the fang 

 is cleft and the pulp cavity is lined by irregular 

 nodules, due to morbid changes. 



II. KOGIA. (K.) 



(Pigmy Sperm Whale.) 



Kogia, Gray, Zool. Erebus and Terror, 1846. 

 Euphysetes, W<dl, New Sperm Whale, Sydney, 1851. 



Head small, snout short, blowhole on forehead, dorsal 

 tin falcate. Length of animal 9 to 13 feet. Ap- 



