125 



SCALARTA subulata. 

 TAB. CCCXC— /^. 1. 

 Spec. Char. Turrited, subulate; volutions 

 contiguous; costse many, thick, reiicoi-cd, 

 the spaces between them smooth. 



Ten or twelve thick, well defined costae, that are broad- 

 est at their upper parts, decorate each of the otherways 

 unornamented whorls of this Scalaria ; these whorls are 

 close together, although not positively united ; there is 

 no umbilicus nor cord around the base. 



SCALARIA foliacea. 

 TAB. CCCXC— /v. 2. 

 Spec Char. Turrited; volutions separate: 

 costae rather distant, slender, broad, leaf- 

 like, reflected. 

 Syn. Sc. foliacea, G. B. Sowerhy, Genera of 



Shells, No.U. 

 So nearly does this resemble one of the recent species of 

 Scalaria, that it requires to be closely examined to dis- 

 cover the difference, the ribs are then found to be thin, 

 sharp-edged, and only bent back in the middle, not 

 regularly reflected along their whole length ; it has no 

 cord around the base, as in some recent species, which 

 resemble it in having thin costae ; neither has it an um- 

 bilicus. 



SCALARIA minuta.^ 

 TAB. CCCILC.— figs. 3 and 4.. 

 Spec Char. Turrited; whorls contiguous; cos- 

 tse, about 20 to each whorl, thin, obtuse, 

 slightly elevated. 

 This is less than half an inch long, with smooth whorls, 

 a narrow lip to the aperture and no umbilicus, it strong- 

 ly resembles Sc. Clathratulus, but the costae in that 

 species are more numerous and sharp. 

 Fig. 4 is a magnified representation. 



