APPENDIX. '11 



809. SIPHONAlllA OllLIQUATA. 



S. test^ oblongft, extus nuli;itiin obtuse (-(otat.i ; vrr- 

 tice subobliquc ef itosticc iiicrnnito : Imiu;. 1 ,' utie. 

 lat. l-r'o uiic. 



Obs. From Van Diemcii's Land; we bail ni)t 



seen these two species when we first docribcd the 



genus. • 



821. CALYPTR.EA COMMA-NOTAlA. 



C. testa suborbicularl, doprcsso-eoniea, vcrtice crn- 

 trali, niacuhi fusea, subconvoliita, a viTticc ad niar- 

 gineni dccurrente. 



Obs. From the coast of Guinea. 



828. CREPIDULA ADUNCA. 



C. testa, subovali, \erticc adunco, niargiue undatA, 

 labio interno scptifornii. 



Obs. The internal septiforin lip divides tlie ca- 

 vity nearly in the middle — tlic upper Ijciuf;- the 

 smaller portion ; this is very deep. 



973. COCIILOGEXA lALVXlMA. 



C. testa oblongo-ovata, sj>ira ])rod\ictft, anfractibiis 

 rotundato-ventricosis, ore albo : long. 6 unc. lat- 

 3i unc. 



Obs. Two specimens of this shell arc in the c<d- 

 lection. It is principally distini;uishcd from the two 

 following:, viz. 974 and 975, by its size, its ventricosc 

 volutions, and its white lip. Locality unknown. 



997. PARTULA UNIDENTATA. 



P. test;! oblongo-ovata, anfractibiis 4 ad .j, rotunda- 

 tis; aperturA castancA, labio externo interne uni- 

 dcntato, dcute valido, obtuso. 



