— 410 — 



Pages 



Cylindrella scse va, Gundlach ...... 222 



— scalarina, Shuttlervoth .... 243 



— sexdecimalis, Jimeno 238 



— Shuttleworthiana, Poey .... 220 

 ' soluta, Pfeiffer 225 



— Sowerbyana, Pfeiffer 219 



— Stearnsi, Arango 227 



— strangulata, Poey 220 



— striatella, Wright 222 



— Teneriensis. Wright 241 



— Thomsoni, Arango 223 



— torquata, Morelet 209 



— Torrei, Arango 219 



— trilamellata, Pfeiffer 221 



— triplicata, Arango 235 



— Turcasiana, Gundlach 239 



— uncata, Gundlach 235 



— unguiculata, Arango 217 



— variegata, Pfeiffer ...... 229 



— ventricosa, Gundlach 216 



— Vignalensis, Wright 221 



— vincta, Gundlach 215 



— violacea, Wright 221 



— volubilis, Morelet 227 



— Wrighti, Pfeiffer 241 



Delavaya (G.) 382 



Dentalium candidum, Jeffreys. ...... 159 



Diplommatina Huttoni, Pfeiffer, var. occidentalis. 55 



— Stolli, Martens ...... 385 



Dyscolia (G.) 70 



— subquadrata, Jeffreys 71 



