637 — 
Pecten gracilis Sow. — Ipswich. 
- grandis Sow. — Ramsholt, 
Newbourn etc. 
- obsoletus Sow. — Norfolk, 
Suffolk. 
- Pr in cep s Sow. — Ramsholt. 
- recondilus Sow. — Norfolk, 
Suffolk. 
- striât us Sow. — Holywell, 
Woodbridge. 
- sulcatus Sow. — Sulton. 
Pectunculus variabilis Sow. —- 
Norfolk, Suffolk, Essex. 
Petricola laminosaSow. — Suffolk. 
Pholas cylindrica Sow. — Wallon, 
Sutton. 
Rostellaria Pes-Pellecani Lam. — 
Norfolk, Suffolk. 
Saxicava ru g osa Lara. — Suffolk. 
Scalaria (Clalhrus) foliacea Sow. 
— Ramsholl, Woodhail. 
- (Clathrus) frondosa Sow. — 
Sutton. 
- (Clathrus) minuta Sow. — 
Ramsholt. 
- (Clathrus) similis Sow. — 
Bramerton, Holywell. 
- (Clathrus) subulata Sow. — 
Ramsholl. 
Tellina obliqua Sow. — Norfolk, 
Suffolk etc. 
Tellina obtusa Sow. — Bramerton. 
- ovata Sow. — Fraralingham, 
Bramerton etc. 
Terebralula variabilis Sow . — Sut¬ 
ton. 
Trochus lœvigatus Sow. — Holy¬ 
well. 
- similis Sow. — Holywell. 
Turbo lit t or eus Sow. — Bramer¬ 
ton. 
- rudis Sow. —• Bramerton. 
Turritella incrassata Sow. — Ho- 
lywell. 
- terebra Lam. — Bramerton. 
Unio (Cardinia) crassiusculus Sow. 
Bawdsey, (Suffolk . 
Venericardia chamœformis Sow.— 
- orbicularis Sow. — Sutton. 
- scalaris Sow. —Suffolk, Nor¬ 
folk. 
- senilis Lam. — Suffolk. 
Venus (Cyprina) œqualis Sow. — 
- gibbosa Sow. — Suffolk. 
- lentiformis Sow. — Essex, 
Suffolk. 
- rustica Sow. — Holesiey 
(Suffolk). 
- turgida Sow. — Norfolk, 
Suffolk. 
Voluta Lamberti Sow. —Holywell, 
Suffolk. 
3) Formation d’eau douce de l’ile de Wight. 
Ancylus elegans Sow. — Hordwell. 
Bulimus costellatus Sow. — Ile de 
Wight. 
— ellipticus Sow. — Shaleomb 
(Ile de Wight). 
Cypris Faba? Desmar. — Test- 
worth, Ile de Wight, 
Hallington. 
Hélix globosa So\y. — Ile de Wight. 
Lymnea columellaris Sow. — Hord¬ 
well. 
Lymnea fusiformis Sow. — Ile de 
Wight. 
- maxima Sow. — Wight. 
- minima Sow. •— Wight. 
- pyramidalis Brand. — llea- 
don-Hili (Ile de Wight). 
Melania fasciata Sow. — Wight. 
Melanopsis brevis Sow. — Hamp- 
shire. 
- carinata Sow. — New port, 
Ile de Wight. 
84 
