28 The Williams Collection of Shells 



few collectors, because the acquisition of fine specimens 

 and of the rarer species is very difficult, A list of the 

 species of Murex represented is given because it goes 

 far to show the fullness of this collection in forms un- 

 known by sight to the average conchologist. Material 

 recently added is not included in the list. 



MUREX 



acanthopterus, Lam. Australia 

 aciculatus, Lam. Channel Is. 

 aculeatus, Lam. Moluccas (very rare) 

 aduncospinosus, Beck. Hong Kong 

 aduncus, Sowb. Japan 

 adustus, Lam. Singapore, Australia 

 alveatus, Kiener. Florida 

 angasi, Crosse. Port Jackson, Australia 

 angularis, Lam. West Africa 

 anguliferus, Lam. Red Sea 

 anguliferus, Lam. var. Indian Ocean 

 antillarum, Sowb. West Indies 

 approximatus, Sowb. Philippines 

 aquatilis, Reeve. West Indies 

 axicornis, Lam. Indian Ocean 



babingtoni, Sowb. South Africa 



balteatus, Beck. Philippines 



banskii, Sowb. Moluccas, Indian Ocean 



bednalli, Angas. South Australia (Extremely rare, only two 



specimens known.) 

 bellus, Reeve, chrysostoma, Gray. Gulf of Mexico 

 benedictus, Melv. Lifu 



