﻿ISO 



F- pictus, T. callosos, TV clanguloides, T. interruptus, 



' clangulus, ' zonatus, ' sulcatus, ' Montagui, 



' Mediterraneua, ' reticulatus, ' indistinctus, « calyculus. 



Eight fossil species are described in the Annates de Museum, vol. 4, p. 4G. 



Monodonta. Shell oval or conoidal; aperture entire, round, the margins 

 disunited at the upper part; columella arched, truncated at the base. An 

 operculum. 



M. bicolor, 



' pagodus, 



' tectum-persicum, 



' papillosa, 



' coronaria, 



' ^Egyptiaca, 



' carchedonius, 



' modulus, 



' tectum, 



M. 



labio, 



australis, 



canalifera, 



viridis, 



fragarioides, 



constricta, 



tricarinata, 



articulata, 



luffubris. 



M. punctulata, 



canaliculata, 



seminigra, 



rosea, 



lineata, 



rugosa, 



Listeri, 



zebra, 



M. reticularis, 



' trochlea, 



' atrata, 



' obscura, 



' concamerata, 



' odontis, 



' pulcherrima, 



' badia. 



Turbo. Shell conoidal or subtrun 

 aperture entire, round, not modified 

 disunited at the upper part; columella 

 base. An operculum. 



cated, the periphery never compressed; 

 by the penultimate whorl; the margins 

 arched, flattened, not truncated at the 



T. marmoratus, 



' imperialis, 



' torquatus, 



' Sarmaticus, 



' cornutus, 



' argyrostomus, 



' chrysostomus, 



' radiatus, 



' margaritaceus, 



' setosus, 



' splenglerianus, 



T. petholatus, 

 undulatus, 

 pica, 



versicolor, 

 samaragdus, 

 cidaris, 

 diaphanus, 

 rugosus, 

 coronatus, 

 crenulatus, 

 hippocastanum, 



muricatus, 



littoreus, 



ustulatus, 



Nicobaricus, 



neritoides, 



retusus, 



rudis, 



obtusatus, 



pullus, 



co3rulescens, 



cancellatus, 



costatus, 



niger, 



minimus, 



tuberculatus, 



zebra, 



pintado, 



crassus, 



fluctuatus, 



saxosus, 



bicarinatus. 



Planaxis. Shell ovate conical, solid; aperture ovate, sublongitudinal. 

 Columella flat and truncated at the base, separated from the right margin by 

 a narrow sinus. Interior surface of the right margin furrowed or lineated, and 

 a callosity running under the summit. 



P. sulcata, P. undulata, P. planaxis, P. lsevigatum. 



Phasianella. Shell ovate or conical, solid; aperture entire, oval, longitu- 

 dinal; the lips disunited at the upper part, the right sharp, not reflected; columel- 

 la smooth, compressed, attenuated at the base; operculum calcareous or horny. 



P. bulimoides, 

 4 rubens, 

 ' variegata, 



P. elegans, 

 ' Peruviana, 

 ' lineata, 



P. nebulosa, 

 ' sulcata, 

 ' Mauritiana, 



P. angulifera, 

 ' lineolatus, 

 ' perdix. 



