A HISTORY OF CORNWALL 



122. Mya truncata, Linn. Valves c. at Falmouth and 



in the Truro river, but live specs, somewhat 

 scarce ; Mount's B. (Tregelles) and Scilly (Jen- 

 kinson) 



123. Sphenia binghami, Turton. Falmouth (Hockin), 



Helford (M.R.I.), Land's End (M.), Harlyn 

 B., i valve (Thclwell) 



124.. Corbula gibba, Olivi. In colonies in muddy 

 sand and gravel from shallow water down to 

 30 fm.; Rame-Eddystone Gnds. (M.B.A.), Pol- 

 perro (Robinson), Fowey ! Gorran ! Falmouth B. 

 i o to 15 fm. ! Mount's B. (Tregelles) ; Crow 

 S., Scilly, and elsewhere (S. & C.). var. nsea 

 Brown, off Nare Pt., Helford (Hockin) ; Fal- 

 mouth (M.R.I.) 



125. Solecurtus scapula, Turton. One spec. Eddystone 



Gnds. (M.B.A.) ; 4 off Polperro in 10 fin. 

 (Robinson) ; Falmouth (Hanley) ; dead shells 

 occ. dredged Falmouth B. ! Penzance (McAn- 

 drew & Forbes), Hayle (Hockin) ; not unc. 

 1. w-m. Pentle B., Scilly (S. & C.). var. oblonga 

 Jeffreys, Porthcurnow (Miss Lavars) 



126. S. antijuatus, Pulteney. A single live spec. 



off Rame Hd., though dead shells n. unc. 

 (M.B.A.) ; several live specs, and many dead 

 shells off Polperro (Robinson), Looe (Mont.), 

 Gorran Haven (Peach), Falmouth (Jeffreys) ; 

 dead shells at times, Falmouth B. in 20 fm. ! 

 Mount's B. (Tregelles) 



[Pharui legumen, Linn. Occurs on the list at 

 Tresco and was reported in trawl refuse by 

 Cocks, but there is no Cornish specimen in any 

 collection] 



127. Cultettus pellucidus, Pennant. Cawsand B. c. 



(M.B.A.), occ. Polperro ! locally c. 10 to 15 fm. 

 Falmouth B. ! abund. Mount's B. ; Hayle 

 (Hockin) ; Scilly in 8 fm., Crow S., and inside 

 Round Is. (S. & C.). 



128. Ensis entis, Linn. N. unc. locally along the S. 



coast about 1. w-m. on sandy beaches and on 

 sandy patches ; Cawsand B. (M.B.A.), Polperro 

 (Robinson), Falmouth B., Coverack (James), 

 Mount's B., and Padstow (Tellam) 



1 29. E. stliqua, Linn. Gen. dist. in sand at 1. w-m. 



from Looe to Camel Est. and at Scilly ; dead 

 shells Plymouth S. and N. coast at Bude ! var. 

 arcuata Jeffreys, occ. Pentuan beach (Rich- 

 ards) ; Coverack (James) 



1 30. Solen vagina, Linn. Drake's Is. in 20 fm. off 



Polperro (Robinson), 1. w-m. Fowey (M.R.I.), 

 in 30 fm. Falmouth (Hockin), shallow water 

 to i o fm., Helford ! Mount's B., Hayle 

 (Dennis) 



131. Saxicava rugpsa, Linn. On ledges and rocky 



beaches between t-m. to 40 fm. at least ; evi- 

 dently gen. dist. and locally c. on S. coast and 

 at Scilly ; Perranporth and Widemouth B.! 

 young specs. Harlyn B. (Thelwell) 



132. S. arctica, Linn. Evidently c. at 20 to 40 fm. 



on shells and the roots of Hydroids and in 

 sand-cracks ; Rame-Eddystone and Eddystone 

 Gnds. (M.B.A.) ; in 30 fm. off Polperro (Robin- 

 son), in 40 fm. off the Dodman ! occ. Porth- 



133. 



'34' 



'35' 



136. 



137. 



138. 



139. 



140. 



141, 



142, 



144. 



pean, St. Austell (Richards) ; in 20 fm. Fal- 

 mouth B. ; Mount's B. ; off Land's End, odd 

 valves ; valves also found at Hayle ; in 40 fm. 

 at Scilly. var. fraecisa Mont. c. on rocks at 

 1. w. attached to the roots of coralline by a 

 byssus (J.C.). var. cylindrica S. V. Wood, 

 Land's End (M.) 



Gastrochaena dub'ta, Penn. Plymouth break- 

 water and Asia shoal (M.B.A.). One spec, 

 boring in an oyster shell, in 40 fm. off the 

 Dodman ! 2 valves dredged in 20 fm. Fal- 

 mouth B. ! Penzance (S. & C.) from 1. w. to 

 20 fm. (M.) 



Pholas dactylus, Linn. Attacks shale, friable 

 slate and sandstone, but apparently has not 

 been found in granite ; near Fowey (J.C.), the 

 Dodman ! Falmouth, in rocks on the littoral, at 

 the Manacles ! Marazion (Millet), Penzance 

 (E. D. Marquand), Hayle (Miss Hockin) 



Barnea Candida, Pennant. In very friable shales 

 and in sandstone ; Pridmouth (Tellam) ; Fal- 

 mouth, scarce ; Helford, abund. in a low ridge 

 of rotten shale ! Mount's B. (Miss Tyacke) 



B. farva, Pennant. Pridmouth (J.C.) ; dead 

 shells in sandstone at Gyllyngvase ; a colony in 

 the seaward end of the ridge containing B. 

 Candida at Helford ! Penzance (E. D. Mar- 

 quand) 



Zirpkaea crispata, Linn. Dead shells occ. Fal- 

 mouth ; Hayle (Hockin) 



Pholadidea loscombiana, Goodall. V.c. in reddish 

 sandstone in deep water (J.C.) ; n. unc. Fal- 

 mouth in soft slate and sandstone ; a mass of 

 sandstone dredged in I o fm. off Helford con- 

 tained 2 live specs, and several dead shells ! 

 Hayle (Miss Hockin) ; 4 dead shells in soft 

 slate on Millook beach (Miss E. A. Reynolds) 



None of the last six species occurs at Scilly 



Xyhpkaga dorsafis, Turton. Plymouth S. (M.) ; 

 a single valve in 40 fm. off the Dodman ! Fal- 

 mouth (Miss Vigurs) ; the Lizard (Miss Came); 

 a single valve off Menavawr (S. & C.), and 

 dredged in St. Mary's S. (M.) 



Teredo norvegica, Speng. In driftwood, Fowey ! 

 in timber of Falmouth breakwater ; driftwood 

 at Maenporth (Tregelles) ; in jetty, Penzance ; 

 Land's End (Hockin) ; Hayle (Miss Hockin) 



T. navalis, Linn. N. unc. in drift and sub- 

 merged wood, breeding in July (M.B.A.) ; 

 much of the woodwork at Pentuan riddled by 

 this mollusc (Richards) ; in most submerged 

 timber at Falmouth ; Newquay (V.) 



T. megotara, Hanley. Occ. in ship's timber at 

 Falmouth ; washed up in driftwood at Gorran 

 Haven (J.C.) and Gurnard's Hd. (Dennis) ; 

 docks, Hayle. var. mionata Jeffreys, in cork 

 washed ashore (Jeff.) 



T. malleolus, Turton. Falmouth (Norman), in 

 cork floats from deep water (Cocks) ; in drift- 

 wood at Gurnard's Hd. (Dennis) 



T. bipinnata, Turton. In oak timber from deep 

 water at Falmouth (Cocks) ; live specs, washed 

 ashore in timoer at Hayle (Hockin) 



146 



