EMARGINULA. 453 



Species of Emarginula. 



alveolata, A. Adams Huzardii, Payr. 



Arabica, A. Adams. imbricata, A. Adams. 



cancellata, Pliil. lata, Quoy. 



catillus, A. Adams. pumila, A. Adams. 



crassilabrum, A. Adams. reticulata, Chem. 



erassa, Sow. rosea. Bell. 



cratitia, A. Adams. rubra, Lam. 



curvirostris, Desli. sculptilis, A. Adams. 



deuticulata, A. Adams. scutellaris, A. Adams. 



fissura, Linn. striatula, Quoy. 



fissurata, Chem. Vanicorensis, Quoy. 

 galeata, A. Adams. 



Sub-gen. sqbemarginula, Blainville (Hemitonia, Swains. 

 Montfortia, Uecluz). 



Shell radiately ribbed, tubercular; aperture not fissured ante- 

 riorly, but with a conspicuous groove or gutter at the front 

 edge. 



depressa, Blainv. polygonalis, A. Adams. 



nodulosa, A.Adams. tricarinata, Born. 



octoradiata, Gmel. 



Sub-gen. clypidina. Gray. 



Shell ovate, depressly-conical, surface rugose or spiny ; aper- 



► ture not fissured anteriorly, but with an internal canal extending 



from the right side of the front margin to the vertex. 



acuminata, A. Adams. parmophoroidea, Quoy and 

 aiinulata, A. Adams. Gaim. 



aspera, Goidd. rudis, A. Adams. 



Candida, A. Adams. stellata, A. Adams. 



fungina, Gould. sulcifera, A. Adams. 

 notata, Linn. 



