VERMETUS. ITl 



flattened laminoe ; one on either side of the columella, and a dis- 

 tinct line on the middle of the columella. 



Philippines. 



This is V. renisectas, Carp., in part, Morch describes vars. 



GORDIALTS, ASPERULA, ASPERELLA, WOODWARDII, Carp., EBENEA, 

 PICEA, INDENTATA, MGNILIFERA. 



Y. CONTORTUS, Carpenter. PI. 49, fig. 27. 



Laterally attached, chestnut-color, rather thin, irregularly con- 

 torted, first whorls spiral, usually in contact, the last protracted, 

 closely longitudinally lirate, decussated by incremental lines, the 

 intersections very obsoletely nodulose; interior without lamella, 

 but with 3-5 spiral lirne on the columella. 



Mazatlan and Gulf of California. 



Morch adds vars. repens, favosa, contortula, indentata and 



CORRODENS. 



Y. Nerino'des, Carp. PI. 49, figs. 28, 29 ; PI. 48, fig. 13. 



Closely agglomerated, irregularly spirally twisted, orange- 

 coloied, almost everywhere superficially ashy ; whorls separate, 

 3"et ai)proximating, liia? soraewliat compressed, very obsoletely 

 nodosel}' contracted, interstices rather wide, with close incre- 

 mental strijp ; internal lamella (fig. 13) large, modifying the inte- 

 rior as in a section of Nerinsea. 



Australia. 

 Y. ocTOSECTUS, Carp. PI. 48. fig. 14. 



Solitary', laterall}' affixed, whitish, irregularly spirally twisted, 

 longitudinal lime rather remote, reticulated by closer, rugose 

 incremental lines, with distant transverse orange lines; interior 

 lamin.Te prominent, lateral, the exterior part of the chamber small 

 in the first and large in the last whorl, eoluraellar line acute. 



So. Africaf Red Sea. 



" I have seen specimens with and without internal laminse 

 attached on the same shell. One specimen shows on the outer 

 wall a sharp keel pointing to the slit between the laminje, which 

 I have never elsewhere seen so well developed. According to 

 Carpenter, it differs from the following species in the absence of 

 the ' remarkable ' structure at the base, and in the comparatively 

 small size of the outer chamber ; the former character is prob- 

 abl}' quite accidental, and the latter is not constant in one and 



