38 The Williams Collection of Shells 



Hong Kong, a great rarity, as are also Latiaxis japon- 

 iea, Dunker, and Separatista grayi from South Africa 

 The series of Purpura crispata and its thirty-seven 

 variations, — two specimens of each, — from the West 

 Coast, well deserves mention. Mr. Henry Hemphill, 

 their collector, wrote: "I have arranged these shells to 

 show the relations of the sculpturing to the color, be- 

 ginning with the foliated forms and ending with the 

 small globose varieties, making them unique in that 

 respect. This, I think, the finest series of Purpura 

 crispata and its varieties, east of the Rocky mountains 

 with possibly two exceptions." 



The Tritonidae show some eighty species, in- 

 cluding Triton waterhousei, Priene oregonensis (a 

 specimen covered with shells of the brachiopod Tere- 

 bratalia transversa), Epidromus obscurus and con- 

 volutus, Ranella candissata, and Aspa laevigata. Of 

 the Fusidae there are also about eighty kinds, among 

 them two of the rarest of British species, and the scarce 

 Latirus bairstowi from Algoa Bay. The genera rep- 

 resented include, beside Fusus and Latirus, Clavella, 

 Megalatractus, Fasciolaria, Peristernia and Leucozonia. 

 The Buccinidae are represented by the wide range of 

 nineteen genera and nearly a hundred species. There 

 is a very large and fine Buccinum leucostoma, besides 

 B. hirasei, Euthria ponsonbyi, Cyllene orientalis and 

 Chrysodomus poecilochroa and tabulata, with the fossil 

 Ch. contrarius. 



