Page:VCH Cornwall 1.djvu/193

 MARINE ZOOLOGY 1 5. A. patelRformis, Linn. Eddystone Gnds. (M.B.A.) ; Falmouth ; off Helford 15 fin. ! Mount's B., Land's End, Wolf Rk. (Miss Carne), Hayle, Scilly (M.). var. itriata Lov. Falmouth (Hockin) 1 6. Glyctmeris glycimeris, Linn. C. locally on sandy a id muddy gravels from just beyond 1. s. t. to 40 fm. ; dead shells all round coast to Bude and at Scilly ; live specs, c. on Queen's Gnd., Cawsand B., Rame-Eddystone and Eddystone Gnds. (M.B.A.), Polperro and Gorran Haven ; off the Dodman, in 40 fm. and Falmouth B., 1 5 fm. downwards ! Mount's B., 5 to 20 fm., and at Scilly, esp. in 40 fm. on stony ground. v^i.fi/osa Linn. Helford (Hockin) 17. Limopsis aurita, Brocchi. Two unpaired valves, Gorran Haven, 1 6 March, 1904 ! 1 8. Barbatia lactea, Linn. Irregularly dist. between t-m., Plymouth to Bude ; also in 5 fm. Queen's Gnd., Plymouth, in 1 5 fin. Falmouth Harb. ! in 20 fm. and over, Mount's B. ; occ. in 40 fm. dredgings at Scilly 19. Area letragona, Poli. Rather sparingly dist. along S. coast in crevices and among stones from 1. w. downwards ; Hayle r. ; a single valve Harlyn B. (Thelwell) ; at Scilly single valves abund., live specs, occ. on stones from 40 fin. 20. Mytilus eJulis, Linn. Gen. dist. and abund. all round coast ; Scilly, but n. c. and always solitary and small, var. ungulata Linn. Hayle (Miss Hockin), St. Minver (Tellam). var. Incurvata Penn. Gorran Haven, Falmouth (Cocks), Newquay, St. Minver (Tellam). var. gallopro- vincialis Lmk., at Par, Falmouth (Cocks), Hel- ford, Hayle (Dennis), var. pellucida Penn, at Falmouth, Maenporth (Dennis) Helford, Hayle and Newquay. var. flava Poli, at Newquay (Miss Hockin). var. pallida Marshall, at St. Austell (Richards), Newquay (James), Forth (Richards) 21. Vohella modiolus, Linn. Occ. thrown up at Par, Falmouth, Helford, St. Minver, and Scilly 22. V. barbata, Linn. From under boulders between t-m. to deep water ; a littoral and shallow water species at Plymouth (M.B.A.) ; 1 5 fm. Falmouth B. ! Mount's B. (Tregelles) ; Pad- stow ! several valves at Bude ! very small specs. dredged outside Menavawr, Scilly, often on sea-weed (S. & C.). 23. V. adriafica, Lmk. Occ. cast up at Falmouth and at Helford, Mount's B. (PenzanceList) and Hayle ; at Scilly, dredged off Menavawr in a nest or case (S. & C.), and occ. cast ashore dead ; var. avails Sow, at Falmouth (Tregelles), Helford (M.R.I.) and Pentle B. Scilly (S. & C.) 24. V. phaseoltna, Philippi. Occ. alive above 1. w-m., but evidently c. locally, from 1 5 fm. downwards ; outside gnds. Plymouth 1 5 to 30 fm. (M.B.A.) ; Fowey Harb.; in 20 fm. Falmouth B. ! 15 to 25 fm. Mount's B., Land's End (T. Brown), Wolf Rk. (Baily), Hayle, and a single valve from Harlyn B. (Thelwell) ; from the Mena- vawr dredgings at Scilly small but numerous (C. Jeffreys) 25. Modlolaria marmorata, Forbes. Chiefly in the tests of tunicates at 5 to 25 fm., n. unc. ; abund. in 20 fm. about 2 miles SE. of Looe (Robinson), in 10 to 15 fm. Falmouth B., and occ. in 5 fm. off Helford ! Mount's B., Porth- curnow, Land's End (Hockin), Hayle, Harlyn B. (Thelwell) ; a few single valves at Scilly 26. M. costulata, Risso. Almost always on sea-weed in dredgings and trawl refuse from shallow water to 40 fm. ; dead shells cast up occ. from Falmouth to Hayle ; a single valve at Harlyn B. (Thelwell), 2 at Bude ! in trawl refuse at Mevagissey and Porthloe, in 40 fm. off the Dodman, in 10 fm. off Helford! deepish water. C "IT Scilly 27. M. discors, Linn. Among short sea-weed between t-m., and occ. in trawl refuse ; Gorran Haven ! Falmouth, gen. dead shells ; c. Helford (James), Mount's B. ; Porthcurnow (Miss Hockin) WolfRk. (Baily); Harlyn B., 4 specs. (Thel- well) ; Bude, 3 valves ! St. Mary's, Scilly, between t-m. var. semi/aevis Jeff, obtained by Burkill at Penzance [M. discrepans, Leach. Spec, in the museum of the Royal Institution of Cornwall, labelled ' Whitsand Bay '] 28. Crenella rhombea, Berk. Evidently always from deep water ; Mount's B. (Penzance List) ; dredged 20 m. off Penzance (McAndrew) ; Land's End ; Harlyn B. I spec. (Thelwell) ; at Scilly single valves dredged in sand at 40 fm., r. and local (S. & C.) 29. Pteria hirundo, Linn. Off the Eddystone ; taken from offing at Plymouth (M.B.A.) ; Falmouth (Hockin) PSEUDOLAMELLIBRANCHIA 30. Pinna fragilis, Pennant. From the Zostera zone down to 40 fm. ; dead shells n. unc. ; small specs, occ. on gravel in 20-30 fm. off Rame Hd. (M.B.A.) ; deep water off Polperro ! abund. 6 or 8 leagues S. of the Dodman (J. C.), off Gorran Haven ! small specs, c. in 15 fm. Falmouth B. ! a few among Zostera in hark off the Lizard (R.Q.C.); Mount's B.; Land's End; Hayle, a few valves ; a few among the Zoster.i beds SW. of Tresco 31. Ostraea edulis, Linn. Gen. dist.; cultivated in the Tamar, Falmouth Harb. and the Helford river. At Scilly odd valves occ. Twenty or twenty-five years ago an attempt was made to introduce it there, but without success, var. parasltica Turton, c. about Polperro (J. C.) ; Gorran Haven ! Falmouth (V.) Helford ! var. defirmis Lmk. Par (Marshall) and Hayle (Miss Hockin) 32. Pecten maximus, Linn. Irregularly dist. round coast from Zostera beds down to at least 30 fm. ; gen. c. ; locally abund. Scilly 33. P. (Hinnites) push, Linn. Gen. dist. round the coast, n. c. from 1. w. to 40 fm. ; young specs, dredged on gravel off Menavawr, Scilly (S. & C.) ; a few adult valves in Forth Cressa B. ! 141