OF NORTHUMBERLAND AND DURHAM. 119 
2. B. puncrata, Adams. 
Bullea punctata, Clark in Zool. Journ. ii. 339. 
In shell sand, with the last, but not so common. Rarely 
found alive in pools among the rocks within tide marks. 
This species has frequently been confounded with the last, but 
is perfectly distinct. The characters are accurately pointed out 
by Mr. Clark in the Zoological Journal. 
3. B. peotinata, Dillw. 
Bulla scabra, Mull. Zool. Dan. ii. 41, t. 71, f. 11, 12. 
Bulla pectinata, Dillw. Cat. 481. 
Scaphander catenata, Leach. Moll. (ined.). 
Bulleea angustata, Phil. Moll. Sic. i. 121, t. 7, f. 17,b. ¢. 
Bullea catenulifera, Macg. Moll. Aberd. 187. 
Bulla dilatata, 8. Wood in Charlesw. Mag. Nat. Hist. 11. 
ta (i, £3. 
Philine scabra, Lovén Ind. Moll. Scand. 9. 
Bulla granulosa, Sars. (sec. Lovén). 
Not uncommon in the Coralline Zone, and frequently found in 
the stomachs of haddocks, but the shell is seldom cast on shore. 
It occurs, however, in shell-sand, in the north of Northumber- 
land. 
We have more than once seen the animal in a fresh state but 
not alive. It is white, and above twice the size of the shell. 
The frontal disc is long, and without apparent eyes or tentacles, 
the sides of the foot broadly reflected, and the cloak, which pro- 
bably covers the shell in a living state, is withdrawn when dead. 
The animal bears a great resemblance to that of Bulla lignaria, 
and the similarity in the form of the shell is also striking. We 
think it may probably have to be placed with that species in the 
genus Scaphander of Montfort, but the animals of this tribe re- 
quire to be more carefully studied, and in the mean time, we pre- 
fer retaining the name Bullea, of Lamarck, for these species, 
rather than making any further changes till the limits of the ge- 
nera are better understood. The gizzard of Bullewa pectinata 
has more resemblance to the same organ in B. aperta, than to 
that of B. lignaria, having three triangular testaceous plates, 
similar to those of the former, but more slender and pointed. 
