A HISTORY OF CORNWALL 



80. Tel/ina serrata, Renier. Two valves found by Mar- 



shall in dredgings from 40 fm. off Menavawr, 

 Scilly 



8 1 . T. tenuis, da Costa. Dead shells often met with 



from Par westwards ; sometimes v. c. Falmouth, 

 Helford, locally in Mount's B., at Porthcurnow 

 and Hayle ; St. Austell B., Crinnis and Pen- 

 tewan beaches (Richards) ; occ. dredged in Fal- 

 mouth B. ; 2 or 3 examples cast up on sandy 

 beaches Scilly (S. &. C.) 



82. T.fabula, Gronovius. N. unc. along the S. coast, 



chiefly in Zostera beds, but occ. in sand at 1. w.; 

 Cawsand B. (M.B.A.), Falmouth Harb.; Gyl- 

 lyngvase beach, Helford, Mount's B. Dead 

 shells at times f. c. at Hayle ; Padstow ! 2 or 3 

 perfect specs. Crow S., Scilly (S. & C.) 



83. Macomabalthica,'L\nn. Usually found in estuarine 



sand at 1. w. One spec, from Saltash is the 

 only record for the Plymouth district ; n. unc. 

 Fowey ; abund. Par (Richards) ; Falmouth B. 

 r., though dead shells at times abund., esp. in 

 Harb. ; local in Mount's B. ; Hayle ; not 

 found at Scilly. var. minor Jeffreys, Helford 

 (Rogers) ; var. utvea Jeffreys, Land's End 

 (Hockin) 



84. Donax vittatus, da Costa. Dead shells often with 



perfect valves irregularly from Whitsand B. to 

 Mount's B., and from Hayle to Padstow ; live 

 specs, in sand at 1. w. at Whitsand B., Fowey ! 

 Pendower and Gyllyngvase ! and 2 in Padstow 

 B. ! Not known at Scilly. var. vitida Jeffreys 

 found at Hayle by Miss Hockin 



,85. D. variegatus, Gmelin. Single valves only on S. 

 sandy beaches from Plymouth to Porthcurnow ; 

 Hayle and thrice at Padstow ! have never seen 

 a live spec, from Cornwall ; Scilly (Jenkinson) 



86. Mactra stultorum, ,Linn. Single valves c. from Whit- 

 sand B., E. to Padstow, and occ. at Bude ! live 

 specs, found occ. in trawl refuse along S. coast ; 

 Scilly (Jenkinson). var. cinerea Mont. Falmouth 

 (Cocks) ; Hayle (Miss Hockin) 



8 7. M. glauca, Borm. Single valves occ. Hayle, one 

 at Padstow ! and several fragments at Land's 

 End (Lindsay), var. luteola Jeffreys, at Hayle 

 (MO 



88. Spisula sofitta, Linn. C. in sandy bays round coast 



and at Scilly. var. Intel-media Jeffreys, at Scilly 

 (Smart), var. truncata Mont, often with type, 

 esp. c. in Pentle B., Scilly (S. & C.) 



89. S. elliptica, Brown. Irregularly dist. but gen. c. 



from Plymouth S. to Land's End on the shallow 

 trawling gnds. ; dead valves often found between 

 t-m. ; not recorded for N. coast ; Scilly 



90. S. subtruncata, da Costa. Sandy bays from Par to 



the mouth of the Camel ; occ. in trawl refuse ; 

 Scilly. var. striata Brown, at Helford (Rogers) 



9 1 . Lutraria elliptica, Lmk. At 1. w-m. in sandy bays 



and in the Zostera beds round coast from Ply- 

 mouth S. to Padstow ; valves occ. at Bude ! c. 

 and of large size at Scilly (S. & C.) 



92. L. oblonga, Chemnitz. Live specs, n. unc. at Par 



and Helford ; fresh valves, Falmouth and St. 

 Minver (Tellam) ; Scilly (Jenkinson) 



93. Lucinopsis undata, Pennant. Live specs, c. near the 



mouth of the Helford and taken in Mount's 

 B. ; single valves occ. Plymouth S., Whitsand B., 

 Falmouth, Hayle, and Padstow ! Type does not 

 occur at Scilly. var. atqualis Jeffreys. First 

 recorded from Scilly by Lord Vernon ; found 

 by Smart sparingly on St. Martin's Flats 



94. Dosinia exokta, Linn. C. round coast and at Scilly, 



in sandy bays, and on sand or fine gravel down 

 to 40 fm. ; abund., Scilly 



95. D. lupina, Linn. As widely dist. but not so c. as 



D. exoleta ; scarcer in E. than in W., and more 

 c. in deep water than in shallow ; on N. coast 

 chiefly represented by dead shells ; St. Mary's 

 Flats and Pentle B., Scilly, but seldom found 

 alive (S. & C.) 



96. Meretrix chione, Linn. Dead shells round coast 



from Plymouth S. to Padstow ; live specs, occ. 

 on the sand at 1. s. t. at St. Austell B. 

 (Richards), and at Gyllyngvase beach ; c. in two 

 patches in Falmouth B. in 1 5 fm. ! dredged in 

 Mount's B. ; n. unc. in clean sand, Scilly ; 

 often large and beautiful on St. Martin's Flats 

 and Pentle B. at 1. s. t. (S. & C.) 



97. Venus (Clausinclla) fasciata, da Costa. C. round 



coast and at Scilly in sand and gravel from 

 1. w. m. to 40 fm. off the Dodman ! and off 

 Menavawr (S. & C.) ; c. also on Coralline 

 ground, var. radiata Jeffreys. With the same 

 range in depth occurs at Polperro ! Falmouth 

 B. ; Porthcurnow ; Hayle ; Scilly littoral and 

 at 40 fm. (S. & C.) 



98. V. (Ventricola) casina, Linn. Locally from 1. w. to 



60 fm. (Peach, off the Dodman) ; occ. on gravel 

 gnds., 10-30 fm., outside Plymouth S.(M.B.A.); 

 Falmouth B. at 1. s. t. and at 20 fm. ! Mullion ; 

 Mount's B. ; Porthgwarra (Dennis) ; Hayle ; 

 Wolf Rk (Hockin) ; c. Pentle B. at 1. w-m. on 

 St. Martin's Flats and between Bryher and 

 Tresco (S. & C.) 



99. V. (V.} verrucosa, Linn. Gen. dist. on sand and 



gravel along S. coast ; occ. at 1. s. t., as on Pen- 

 dower beach and at Helford, gen. at 10 to 30 

 fm., but off the Dodman in 40 fm. and over ; 

 odd valves at Hayle and Newquay ! Scilly, n. c. 

 (S. & C.) 



I oo. V. (Timoclea) ova fa, Pennant. F. c. along S. coast 

 on coralline ground, in trawl refuse, in 10 to 

 60 fm. dredgings, esp. on gravel ; often attached 

 to the byssus of Pinna (Couch) ; valves at Hayle, 

 Perranporth ! and Padstow ! Scilly, c. from 

 deep-water dredgings. 



101. V. (Chamelaea) gallina, Linn. In sand and fine 



gravel from between t m. to 40 fm. ; f. c., 

 Cawsand B. and occ. on the outer gnds. round 

 Plymouth S. (M.B.A.) ; Polperro, at 1. w. ; 

 Porthpean beach, St. Austell (Richards) ; trawl 

 refuse Mevagissey, Falmouth B. in 20 fm. ! 

 dead shells at Hayle ; live specs, at Perranporth 

 and Newquay at 1. s. t. ! Scilly, n. c., from 

 Crow S. and along the shore (S. & C.) 



1 02. Tapes aureus, Gmelin. Only dead shells found 



around Plymouth (M.B.A), but live specs, at 

 Par, from Pendower to Hayle c., and at Helford 

 and the bar at Falmouth, abund ; also occ. 



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