33S WEST AFUICAN MOLLl'SKS STEARNS. 



tumidKs {>[' Mi^utAiXn. Tlu' National Miisomn sorirs contains spt'ciinoii-s 

 from tlu' Capr oldood Hope (No. 43098). 



Family I^TRIUNID.E. 



GtMius ASTRALIUM Link. 



112. Astialium tuber Limi6. 



One siH'cimen; no locality given; probably Barbados. 

 Occurs in Florida, at du])itcr Inlet and the Keys, as well as at nu- 

 merous places in the Antillean region. 



I'amily NFRITID.E. 



Geuus NERITA Urujiuiere. 



113. Ncrita neritinoides Kocvp. 



Numerous specimens, living; Ashantee (Mus. No. iL'a.'UO). 

 The foregoing appears to be quite an abundant form. Sowerby's 

 moriit and Philippi's carhonaria are apparently the sanu\ 



114. Nerita ascensioiiis Ohcnmit/. 



Common; niany (>xamples. living: Ascension Island (Mus. No. 

 lL»5fOl). 



A pretty shell, apparently abundant. 



Sviperfamily ZiYGrOBKA^lSrCIIIA.. 



l^imily UALIOTID.E. 



(liMiiis HALIOTIS Liuui'. 



115. Haliotis striata I.iuuarok. 



One good specimen. Fayal (Mus. No. 125280). 



Family FISSURELLID.E. 



• (ituus FISSURELLA IJniguiere. 



116. Fissurella alabastritis Koovo. 



Three beach vshells. Porto (Irande (:\lus. No. iLTuiO^). 



117. Fissurella mutabilis Sowoiby 



Two living specimens. Cai)e Town (i\Ius. No. 125;>72). 

 The above agree perfectly with nanu^d examples received from the 

 Albany Museum. 



eiiilitUi«s ISOPI.KITI'JA.. 



Order POLYPL ACOPHORA. 



Family LErTOCIlITONID.i:. 



(uMius Leptochiton (Uay. 



118. Leptochiton cyaneopiinctatus Kruues, 



f = lentiginoaus Sby. 



