40 The Williams Collection of Shells 



Of the seventy-six species of Voluta in the collec- 

 tion, only these will be here specified: 



Voluta africana Voluta mamilla 



aulica 

 brasiliana 

 bullata 



concmna 

 cymbiola 

 flavicans 

 grayae 



megaspira 

 ponsonbyi 

 pulchra 



roadnightae 

 rossiniana 

 thatcheri 

 thyrella 



jarnrachi " virescens 



laevigata 



The exquisite and rare varieties of V. musica 

 (carneolata, guiniaca, sulcata, etc., etc.) should be 

 noted; and a V. vespertilio believed to be the largest 

 and finest known of its species. Melo, Cybium and 

 Lyria are fully represented by some thirty other species, 

 the seven species of Lyria being all of the greatest 

 rarity. A magnificent pair of Melo aethiopica, from 

 the collection of Lord Ashbrook, an Irish peer who 

 died only a few years ago, commands especial admi- 

 ration. 



Pausing again at the Mitridae, one single tiny 

 specimen of which cost much more than its weight in 

 gold, there are found three hundred, and seventy 

 species and varieties of Mitra and Turricula, and nearly 

 all are extremely beautiful. These dainty small forms 



