MARINE ZOOLOGY 



sands at Padstow and at Scilly locally abund. 112. 

 var. ovata Jeffreys, obtained by Jeffreys at Fal- 

 mouth. var. quadrata Jeffreys, found at Fal- 

 mouth (Hockin), and at Hayle (Miss Hockin) 



103. T. virgineus, Linn. C. on sand and gravel from 



Plymouth S. to Padstow, sometimes between 113. 

 t-m. as at Porthpean, St. Austell (Richards), 

 and at Helford ; often from 10 to 40 fm. in 

 trawl refuse and dredgings ; at Scilly f. c. on 

 St. Martin's Flats and on the sandy shores of 

 Tresco. var. sarniensts Turton, at St. Austell 

 and Falmouth (J. C.); c. at Helford (Richards); 

 Scilly, r. (S. & C.) ^ 



104. T. pullastra, Mont. In sand and fine gravel from 



between t-m. to 15 or 20 fm. ; occ. Plymouth 

 S., Whitsand B., Par ; Porthpean beach 

 (Richards) ; in trawl refuse, Mevagissey ! Fal- 

 mouth B. ; and abund. at Helford, Mount's 

 B., St. Minver ; at Scilly, esp. Tresco to 

 Bryher (S. & C.). var. performs Mont., about 

 Plymouth (M.B.A.) ; Par (Tellam) ; Falmouth 

 and Penzance (Burkill) and Helford (Hockin) ' ' S- 



105. T. decussata, Linn. N. unc. on most sandy or 

 gravelly beaches and in dredge refuse along S. 

 coast ; abund. Helford ; r. Newquay and St. 

 Minver (Tellam) ; the scarcest of the Tapes at 

 Scilly, found in numbers only at one spot on 

 Tean (S. & C.) 



1 06. Gouldia minima, Mont. N. unc. trawl refuse jjg^ 



and in dredgings on sand and gravel from 5 to 

 40 fm. along S. coast ; occ. on Queen's Gnd. 

 and on Eddystone Gnds. (M.B.A.) ; Falmouth 

 and Mount's B. ; Wolf Rk. (Hockin) ; single 

 valves at Porthcurnow ; Hayle ; 2 at Padstow ! 117- 

 At Scilly in 40 fm. off Menavawr (S. & C.). 

 var. triangularis Mont. occ. Falmouth 



107. Irus irus, Linn. Falmouth (Cocks) ; Mousehole 



(Baily) ; Porthcurnow ; Land's End (E. D. 

 Marquand) ; Hayle and Harlyn B. ; Scilly, r. 

 (M.) 



108. Cardium aculeatum, Linn. Trawl refuse r. ; dead 



shells cast up at long intervals, Pentuan (J. C.) ; 

 Falmouth ; Helford ; Mount's B. and Hayle ; 

 dead shells in almost perfect condition dredged 

 off Helford river, fragments n. unc. in other 

 parts of Falmouth B. ! 



109. C. echinatum, Linn. Live specs, n. c. in 8 to 30 



fm. on sand and gravel and gen. immature ; 

 dead shells dist. irregularly Plymouth S. to Hayle I 19' 

 and in fresh condition are characteristic of the 

 ' Inner ' and ' Outer ' trawling gnds. at the 

 Eddystone (M.B.A.) ; live specs, at Falmouth 

 (V.) ; off Helford in 15 fm. ! Mount's B. and 

 in Crow S., Scilly (S. & C.). var. expansa 

 Jeffreys, in Plymouth S. (M.) 



i 10. C. tuberculatum, Linn. Single valves round 

 coast, Looe to Bude ! and occ. fresh dead shells 

 in beautiful condition in trawl refuse and in 

 dredgings from about 20 fm. in Falmouth B. ; 

 have never seen a live Cornish spec. 



ill. C. papilhsum, Poli. Two fresh valves Falmouth 

 Harb. in 19 fm. (M.) ; Helford (Rogers), 

 Mount's B., dredged (Tregelles), St. Ives (Dodd), 

 and a fresh valve in 40 fm: Scilly (M.) 



I 145 



118, 



121 



Cardium exiguum, Gmelin. On sand and gravel 

 from 1. w. to at least 1 5 fm., locally c. round 

 coast ; Polperro ! Par sands, Falmouth B., in 

 Mount's B. ; r. Hayle, Perranporth ! Newquay ! 

 and young specs. Harlyn B. (Thelwell) 



C. fasciatum, Mont. C. in 40 fm. off the Dod- 

 man ! n. unc. in trawl refuse and dredgings, 

 Falmouth B., though gen. small ! Mount's B.; 

 Porthcurnow, dead shells n. unc.; Whitsand B., 

 Land's End ! Hayle, and in deep water off 

 Menavawr, Scilly (S. & C.). var. alba Jeffreys, 

 at Scilly (M.) 



C. nodosum, Turton. Dead shells n. unc. from 

 Fowey westwards, live specs, apparently only in 

 deep water ; in 40 fm. off the Dodman ! in 

 Falmouth B. 20 fm., chiefly dead shells, but live 

 specs, occ. ! Mount's B. (Tregelles), Wolf Rk. 

 (Miss Carne) ; c. in deep water off Menavawr 

 and occ. alive (S. & C.). var. nsea Lmk., at 

 Falmouth (Hockin) 



C. edule, Linn. Abund. in sandy bays and flats 

 to Padstow, though only an odd valve has been 

 found at Newquay ; Truro and Helford river, 

 c. ; found at Bude ! Scilly, v.c. var. rustica 

 Jeffreys, at Falmouth (James), var. crcnulata 

 Lmk., Mount's B. (Miss Hockin) ; Hayle 

 (M.R.I.) ; a form approaching this var. occurs 

 abund. near Pentle B. (S. & C.) 



C. minimum, Phil. Two small valves from 

 Muncoy neck, Scilly (Marshall) ; the first occur- 

 rence on the English coast 50 m. NW. of 

 Land's End in 50 fm. (McAndrew) 



C. (Laevicardium) norvegicum, Speng. N. unc. 

 and f. gen. dist. on gravel and coarse sand from 

 1. t-m. to 40 fm. along S. coast ; dead shells 

 often c., and occ. at Hayle ; n. unc. alive in 

 Pentle B. and on St. Martin's Flats (S. & C.). 

 var. gibba Jeffreys, Hayle (Miss Tyacke). 

 var. rotunda Jeffreys, Helford (H.). var. 

 pattida Jeffreys, Helford (Rogers), Mount's B. 

 (Tregelles), Hayle (Miss Hockin) 



Gar! tellinella, Lmk. In variable numbers in 

 sandy gravel round coast to Padstow, and also 

 on gravels and coarse sands in deep water, e.g. on 

 the Rame-Eddystone Gnds. in 30 fm. (M.B.A), 

 off the Dodman in 40 fm. ! Falmouth B. in 

 8 to 20 fm. ! c. 1. t-m. and deep water, Scilly 



G. costulata, Turton. Gen. with G. telRnellavn 

 mainland, and at Scilly but less c. ; on the N. 

 coast only from Hayle 



G. ferroensis, Chemnitz. Dead shells dist. all 

 round coast to Padstow,. and in places down to 

 40 or 50 fm. ; live specs, n. unc. from 1. w. 

 downwards, and at times plentiful on the 

 beaches after stormy weather ; f. c. St. Martin's 

 Flats, Scilly (S. & C.) 



G. (Psammocola) depressa, Pennant. Sparingly 

 dist. on sand and fine gravel between t-m., but 

 odd valves more in evidence than live specs. ; 

 Polperro ! Fowey ! Falmouth B. ; Mount's B. 

 (Marquand), Land's End (M.R.I.) and Hayle, 

 and a few valves at Padstow ! Scilly, but nevei 

 abund. (S. & C.) 



