MUSEUM OF COMPARATIVE ZOOLOGY. 17 



Astyris diaphana Verrill. 



Astyris profundi Dall. 



Astyris Verrillii Dall. 



Astyris Verrillii var. strix Watson.* 



Astyris Saintpairiana Caillet. 



Astyris Duclosiana Orbigny. 



Subgenus iESOPUS GOULD. 



JEsopus Stearnsii Tryon.* 

 JEsopus Metcalfei Reeve.* 



Family MURICID^E. 



Subfamily MURICIN^. 



Genus MUREX Linne. 



Subgenus MUREX s. S. 

 Murex Beaui F. & B. 

 Murex Cabritii Bernardi. 

 Murex elegans Beck. 

 Murex messorius Sowerby. 

 Murex nodatus Reeve. 

 Murex Cailleti Petit. 



Subgenus CHICOREUS Montfort. 

 Chicoreus Hidalgoi Crosse. 



Subgenus PHYLLONOTUS Swainson. 

 Phyllonotus fulvescens Sowerby.* 

 Phyllonotus pomum Gmelin. 

 Phyllonotus interserratus Sowerby. 

 Phyllonotus Pazi Crosse. 

 Phyllonotus hystricinus Dall. 



Subgenus PTERONOTUS Swainson. 

 Pteronotus macropterus Deshayes.* 

 Pteronotus phaneus Dall.* 

 Pteronotus tristichus Dall. 



Genus EUPLEURA H. & A. Adams. 



Eupleura caudata Say.* 

 Eupleura Stimpsonii Dall. 

 VOL. xviii. 2 



