154 PHYLLOBRANCHIA. TURBONID&. 
Inhabits most of the British coasts, especially in estuaries, 
on Ulva. 
10. SABANAZA PAUCICOSTATA. 
S. testa glabra, alba; anfractibus transversim et raro costa- 
tis ; apertura suborbiculari. 
Habitat in mari Danmoniensi et in Hibernize sinubus Dubliensi 
et Bantryensi. Mus. nostr. in Mus. Brit. : 
Inhabits the sea: Dublin and Bantry Bays, Ireland; Sal- 
combe, Devon. : 
Shell smooth, white. Whorls transversely ribbed, with very 
fewribs. Height one-twelfth of an inch. 
This new species was first given to me by Miss Hutchings 
of Bantry Bay, Ireland; I have likewise received one specimen 
from Mr. Charles Prideaux, who found it in the Saleombe 
estuary. 
11. SABANa&A BINGHAMIANA. 
S. testa fuscescente, glaberrimé, polita, nitente ; anfractibus 
planis ; sutura tenuissima ; apertura rotundato-ovali. 
Habitat in Danmoniz mari prope Weymouth in Dorsetia raris- 
simé. Mus. nostr. in Mus. Brit. ex dono Gen. Bingham. 
Shell pale fuscous, very smooth, polished and shining. 
Height one-eighth of an inch. 
Inhabits the sea: Torbay, Devon. Discovered by my friend 
General Bingham, at Weymouth in Dorsetshire. 
I think it highly probable that Turbo trifasciatus, subfuscus 
and membranaceus of Mr. Adams, described in the fifth volume 
of the Transactions of the Linnzean Society, pages 2 and 3, and 
figured in plate 1, belong to this genus. 
Genus 68. ASSIMINIA. 
Testa conica. Spira mediocris. 
Animal tentaculis duobus brevibus, apice pauld angustiori- 
bus obtusis, ad apicem oculigeris, instructum. Oculi parvyli, 
rotundi. Operculum tenue. 
Shell conic, its spire moderate. 
