CERITHIOrSID.E. 239 



Genus STYLIFER, Broderip. 



Shell subulate or subglobose, thin, pellucid, smooth, 

 polished, many-whorled ; apex of spire produced and 

 styliform, with a sinistral nucleus ; aperture subovate, 

 pointed behind, rounded and entire in front; inner lip 

 smooth, arcuated ; outer lip, thin, simple. 



Sun. Stylina, Flem., not Lam. ? Entoconcha, J. 

 Mull. 



Ex. S. ovoideus, A. Adams, pi. 25, fig. 4. Shell, S. 

 subulatus, Broderip, fig. 4, a. 



Although the name Stylina of Fleming has the prio- 

 rity, we have adopted the designation of Broderip, be- 

 cause the former name had been already applied by 

 Lamarck to a genus of Zoophytes. 



Species of Stylifer. 



acicula, Gould. Mittrei, Petit. 



Broderipii, A. Adams. ovoideus, A. Adams. 



corallinus, Chem. solidus, A. Adams. 



Cumingii, A. Adams. styliferus, Flem. 



fastigiatus, A. Adams. subulatus, Brod. 

 fulvescens, A. Adam.s. 



Fam. CERITHIOPSID.E. 



Animal with a short, broad head ; tentacles subulate, 

 obtuse, wide at the base ; eyes placed centrally at their 

 origin ; mouth with a retractile proboscis, tongue armed 

 with teeth resembling in arrangement those of Trichotropis. 



