340 Capt. P. P. King’s Description of 
26. PUPA SUBDIAPHANA. 
P. testé cylindraced, albd, subdiaphand, tranversim creberrimé sub- 
striata ; long. 4 paulo minus; lat. ~; paulo minus ; poll. 
Habitat ad Portum Praya. (Cape de Verd Islands.) Mus. Brit., nost. 
27. BuLinus GRAVESII. 
B. testa subventricosd, longitudinaliter subrugosd, sub-albidd, fusco- 
maculata, spird longitudinaliter striatd ; long. 14; lat. +2 paulo 
minus ; poll. 
Habitat ad Valparaiso. Mus. nost. 
I have named the shell after my shipmate and friend, Lieutenant Tho- 
mas Graves, whose zeal assiduity in assisting and increasing my collec- 
tions 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 prin- 
cipally 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 subpyramidali, scabrd, albidd, aliquando lineolis raris ; epider- 
mide lutescente ; long. 1,2-; 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 cylindraced, punctatd, sub-diaphand, fusco maculata ; aper- 
turd dentatd, clausiliam mentiente ; long. +2; lat. 5; poll. 
Habitat ad oras Brasilie (St. Catherine’s.) Mus. Brit., nost. 
30. BuLINUS LUTESCENS. 
B. testd obovatd, ventricosd, subscabrd, lutescente; long. 14; lat. 44; 
poll. 
Habitat ad Maldonado (Gorriti.) Mus. Brit., nost., Brod. 
