LEPTONIDA. 69 
stage of growth. . . . The attachment of the ligament to the 
hinge is slight, which accounts for single valves being so fre- 
quently thrown up on the shore, or taken by the dredge in 
sandy bays”; G. Jeffreys. 
Coasts about Burnham and Weston-super-Mare ! 
LEPTONIDA. 
Las#A RUBRA, Montagu. 
Birnbeck Cove ! 
SCROBICULARIIDA. 
SynposMya ALBA, Wood (= Scrobicularia alba, Wood). 
W eston-super-Mare ! 
It is not infrequent in the Burtle Beds. 
ScROBICULARIA PLANA, Da Costa (=Scrobicularia piperata, 
Bellonius ). 
Frequent at low-water mark in mud and clay. Mr. Herbert 
Bolton found it in a holocene deposit at Dumball Island, A von- 
mouth. 
Weston-super-Mare ; FP. A. Knight. 
Between Berrow and Burnham ! 
TELLINIDZ. 
TELLINA CRASSA, Gmelin. 
Between Brean and Berrow ! 
TELLINA TENUIS, Da Costa. 
Abundant along the coast in many parts. It occurs in the 
raised beach at Birnbeck Cove. 
About Burnham and Berrow flats ! 
Weston-super-Mare; F. A. Knight. 
MAcoMA BALTHICA, Linné (= Tellina Balthica, Linné). 
This is one of the commonest shells on the sands at Weston 
and between Brean and Burnham. It also occurs in the raised 
beaches at Woodspring Hill. Mr. Bolton has recorded it from 
a holocene deposit at Dumball Island, Avonmouth ; and Mr. 
H. Corder informs me that he has found it in the Burtle Beds 
exposed by a roadside ditch at Perry Green, Wembdon. 
