PHYLLOBRANCHIA. TURBONID&. 161 
Habitat in mari Cornubiensi et Danmoniensi. Mus. Montagu 
et nost.in Mus. Brit. Alt. 2 unc. 
Shell pale azure blue, very smooth, whorls six, suture very 
distinct. Height two-eighths of an inch. 
Inhabits the British sea: Falmouth, Whitesand and Causand 
Bays, Cornwall; Torbay and Salcombe Bays, Devon. It is by 
no means rare. 
Var. 3. The shell white. 
6. TurRRITELLA DORVILLEANA. 
T. testa alba aut flavescente ; anfractibus quinque, inflatis, re- 
ticulatis ; interstitiis reticulatis et impresso-punctulatis. 
Turbo Punctura, Mont. Test. Brit. 320. t. xi. f. 5; Flem. 
Edinb. Encyel. vii. 73; Dill. Desc. Cat. 784; Turt. Conch. 
Drees. 21:1. 
Habitat in Danmonie et Cornubiz mari Australi. Mus. Mon- 
tagu in Mus. Brit. Alt. 54 unc. 
Shell white or yellowish, with five inflated reticulated whorls; 
the interstices reticulated, and with small impressed punctures. 
Height one-tenth of an inch. 
Inhabits the British sea: Whitesand Bay, Cornwall, and Sal- 
combe Bay, Devon. 
It was first discovered by Mrs. Dorville, after whom I have 
named it, Col. Montagu’s name signifying a ‘ pricking,’ which I 
must confess puzzles me not a little, to ascertain what could 
induce him to impose so strange a name to distinguish a species 
of shell. 
7. TURRITELLA EBURNEA. 
T. testa eburnea, glaberrimé, nitente; anfractibus sex, tumi- 
dis, sutura valdé distincta. 
Habitat in mari Cantiano. Mus. nostr. in Mus. Brit. Alt. 
4+ unc. 
Shell ivory white, verysmooth, shining, with six tumid whorls ; 
its suture very distinct. Height one-eighth of an inch. 
Inhabits the British sea, Folkestone and Sandwich, Kent. 
I discovered this new species alive in the year 1817 at 
Folkestone, and afterwards received some dead specimens from 
