552 



CATALOGUE SHELLS. 



Habitat ad Portum Praya. (Cape Verd Islands.) Mus, Brit., 

 7iosi, 



27. BuLiNus Gravesii. 

 B, testa subventricosd, longitudinaliter subrugosd, sub-albidd, fusco' 

 maculatd, spird longitudinaliter striatd ; long. 1| ; lat, paulo 

 minus ; poll. 



Habitat ad Valparaiso. Mus. nost. 



I have named the shell after my shipmate and friend, Lieutenant 

 Thomas Graves, whose zeal and assiduity in assisting and increasing 

 my collections of Natural History was as unwearied as the 

 alacrity and ability which he displayed in the primary and more 

 important objects of the voyage, of which, in his Majesty's ship 

 Adventure, he filled the appointment of assistant surveyor. To 

 Lieutenant Graves I am principally indebted for my land-shells, 

 and I therefore take the opportunity of recording the valuable 

 assistance he rendered me during the whole period of his serving 

 under my command. 



28. BuLiNus Gravesii, var. 

 B. testd subpyramidalif scabrd, albidd, aliquando lineolis raris ; 

 epidermide lutescente ; long. Ij^g ; lat. paulo plus. poll. 

 Habitat ad Valparaiso. Mus. Brit., nost., Brod. 

 This is certainly a variety of No. 27, Bulinus Gravesii. 



29. Bulinus dentatus. 

 B. testd cylindracedf punctatd, sub-diaphand, fusco maculatd ; aper- 

 turd dentatd, clausiliam mentiente ; long. ; lat. -^^ ; poll. 

 Habitat ad oras Brasilice (St. Catherine). Mus. Brit., nost. 



30. Bulinus lutescens. — No. 140. MSS. 



B. testd obovatd, ventricosd, subscabrd, lutescente; long, ; lat. 



Habitat ad Maldonado (Gorriti). Mtis. Brit., nost., Brod. 



SI. Bulinus corrugatus.— No. 941 MSS. 



B. testd subalbidd, transversim et longitudinaliter rugoso-striatd, 

 maculis fuscis, obsoletis ; aperturd purpurascente ; columella 

 nigricante pur pur ed ; long. 1| paulo plus ; lat. W ; poll. 

 Habitat ad Concepcion. Mus. Brit., nost., Brod. 

 The body-whorl of the older specimens of this shell is rather 

 roughly striated or wrinkled, the last but one slightly so, and the 

 remaining whorls are quite smooth. The colour is whitish, with 



