IREDALE : NOMENCLATURE OF BRITISH MARINE MOI.I.USCA. 345 



Family Lotoriidae. 



This name must be clianged to Cyniiatiidce and the genus name 

 Lotoriiim replaced by Charonia and Cytiiafhtm. 



The alterations would read : 



Family CYMATIID^. 



Genus Charonia Gistel. 



CHARONIA LAM FAS [Uiiiie]. 

 {^=NOD[FERUM Lamarck). 



Genus Cymatium Bolten. 



Subgenus CABESTANA BolLen. 



CYMATIUM CUTACEUM [Linm'). 



Genus Ocinebra Gray. 

 Tritonalia Fleming is equivalent and many years older and should 

 replace Ocinebra Gray, as pointed out by Jousseaume in j88o. 



Genus Trophon de Montfort. 

 Sliould not this name be replaced by TropJionopsis B.D. & 1).? 

 If not, that name must certainly be subgenerically cited and also 

 Boreotrophon Fischer. 



Genus Purpura Bruguiere. 

 This must be replaced by Niicella Bolten. Purpura P3ruguiere is 

 antedated by Purpura Martyn, the type of which is the Californian 

 foliata Martyn, the name thus displacing Cerastonta Conrad. The 

 family name Thaididce. would here come into use. 



Family Columbellidae. 



The family name must be changed to Pyrenidce whilst it would 

 be best to give Astyris and Anachis generic rank. 



Family Nassidae. 



'J'his name must disappear as A^assa was used by Bolten before 

 Lamarck's usage, and Bolten proposed it for the shell commonly 

 known as lopas sertum (Bruguiere). Dall has proposed Alectrio7iidce 

 but in accordance with the rule that the family name must be 

 based on the oldest generic name, ArculariidcB is the name to be 

 utilised. 



Examination of living specimens of reticulata Linne would force 

 the acceptance of Tritia Risso, based on this species, in preference 

 to the introduction into British literature of either Arcularia or 

 Alectrion based on exotic species which are not congeneric in my 

 estimation. 



Family Pleurotomidae. 



This family name also disappears, Pleurotoina Lamarck falling as 

 an absolute synonym of Turris Bolten, from which the faniily name 



