552 CATALOGUE—SHELLS. 
Habitat ad Portum Praya. (Cape Verd Islands.) Mus. Brit., 
nOSte 
27. Butinus GRAvVEsII. 
B. testd subventricosd, longitudinaliter subrugosd, sub-albidd, fusco- 
maculatd, spird longitudinaliter striatd ; long. 14; lat.13 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. BuxLinus GRAvVEsII, var. 
B. testd subpyramidali, scabrd, albidd, aliquando lineolis raris ; 
epidermide lutescente ; long. 1,9; ; lat. 41 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 cylindraced, punctatd, sub-diaphand, fusco maculatd ; aper- 
turd dentatd, clausiliam mentiente ; long. 423 lat.,5 poll. 
Habitat ad oras Brasilie (St. Catherine). Mus. Brit., nost. 
30. Buxinus LurEscens.—No. 140. MSS. 
B. testd obovatd, ventricosd, subscabrd, lutescente ; long. 11; lat. 
+h 3 poll. 
Habitat ad Maldonado (Gorriti). Mus. Brit., nost., Brod. 
31. Buninus corrucatus.—No. 941 MSS. 
B. testd subalbidd, transversim et longitudinaliter rugoso-striatd, 
maculis fuscis, obsoletis ; aperturd purpurascente ; columelld 
nigricante purpured ; long. 18 paulo plus ; lat. 4% ; 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 
