916 Mr. A. Bell on some new or little-known Shells de. 
Rissoa zetlandica, Mont. R.C. Walton, Waldringfield. 
* Trochus granulatus, Bom. R.C. Walto on, Butley, &c. 
* Fissurella costaria, "Basterot. C.C. Sutton. R.C. Wald- 
ringfield. 
* Puncturella noachina, Linné. C.C. Sut 
* Capulus? incertus, Bell (n. sp.. Shell cies a flattened 
cone, with depressed a overhanging apex, which is nearly 
n a level with the margin. Volution twisted, inclining to 
ilie right. Opening d (with a slight inflexion) on 
the right side; left side expanded, sloping downwards from 
the top to the centre, and thence contracting towards the 
base. Sculpture 6-9 strong ribs or flexures on the left side, 
curving lengthwise and downwards from the apex. Sur- 
face finely striated all over; lines of growth very distinct. 
ong. 14 in., lat. +4 in. 
ld. 
Two or three specimens are all that I have seen of the 
above "shell, all being about the same size. This species 
and Capulus militaris, var. partim-sinuosus, Wood, also 
strongly flexured or ribbed, probably Tel to the genus 
Brocchia, Bronn (type Patella sinuosa, Brocchi), also with 
these same flexures on the left side, but running in a con- 
trary direction. Mr. Wood's suggestion that these are 
caused by the shell adhering to a Pecten, appears to me in- 
admissible, ae the flexures are always in each species 
in one direct 
Capulus siquid: Wood. C.C. arieni 
Lepeta cæca, Müller. R.C. Walto 
* Actæon? Etheridgii, Bell (n.sp.). Shell elongated, — 
or turreted, thin, smooth, apex reversed ; whorls 5—6 ; inner 
lip with one strong fold on the bess of the ene lip. 
Long. 33 inch. R.C. Walton. Of this elegant little shell 
I have obtained but two specimens. 
Ehynchonella psittacea, Chemn. R.C. Sutton. 
* Ostrea cristata, Born. C.C. Sutton. 
* cochlear, Poli. C. C. (Jeffreys). R.C. Waldringfield. 
Anomia patelliformis, Linné. Chil. ser. Sudbourn, near Or- 
or 
ea princeps, Sow. R.C. Waldringfield. Chil. ser. Yarn 
Westendorpianus, ee, R.C. Waldrin gfield. 
Hosius giganteus, Carpenter, = H. Cortesyii (Crag Moll.). 
R.C. Trimley. 
Limopsis pygmea, Philippi. R.C. Walton. 
Nucula nucleus, Linné. R.C. Butley. 
Leda pygmæa, ares R.C. Walton. 
