A HISTORY OF CORNWALL 



181 



165. Gibbulaumbilicata,M.ovt. Gen. dist. and usually 177. 

 c. round coast and at Scilly, chiefly from h. w-m. 

 to 1. s. t-m. var. atro-purpurea Jeffreys, Fal- 

 mouth, Hayle, and Mawgan Forth (Miss 

 Hockin) 



1 66. Mmodonta crassa, Montford. C. on restricted 

 areas on rocky beaches all round coast and at 

 Scilly chiefly from above h. w. m. to half t-m. 



167. Callwstoma montagul, W. Wood. Scarce in trawl ,- 7 ,j - 

 refuse and in dredgings from deep water ; in 

 2 5 fm. Falmouth B. ! Mount's B. ; in 40 fm. 

 offMenavawr, Scilly (S. & C.) 



1 68. C. striatum, Linn. Chiefly on Zostera beds, 

 where it is often abund. ; Cawsand B. (M.B.A.), 

 Falmouth, v. c. ; Helford ; Mount's B. ; Land's 

 End (McAndrew) ; Padstow ! Scilly, abund. 



169. C. exasperatum, Pennant. Dead shells occ. 1 80. 



found, live specs, r. ; Falmouth, Helford, 

 Mount's B., Land's End 



170. C. miliare, Brocchi. In 30 fm. Falmouth 



(Hockin) ; Porthgwarra, in trawl refuse (Dennis) ; 

 Wolf Rk. (Miss Came) ; at Scilly one spec, in 

 40 fm. off Menavawr (S. & C.) 



171. C. granulatum, Born. N. unc. on sandy and on 



fine gravel in deep water ; Eddystone Gnds. 

 (M. B. A.) ; Whitsand B. (Jeff.) ; in 35 fm. off 

 Polperro (Robinson) ; trawl refuse at Meva- 

 gissey ! in 20 to 25 fm. Falmouth B. ! 

 Mount's B., Land's End (Maton) ; dead shells l $ 2i 

 in Widemouth B. (Miss E. A. Reynolds) ; a 

 few dead and imperfect specs, off Menavawr 

 (S. & C.), and live specs, from St. Mary's S. 

 (M.). var. lactea Jeffreys, Mount's B. and 183. 

 St. Mary's S., Scilly (M.) 



172. C. zizyphinus, Linn. C. under stones and in 

 rocky crevices at 1. w. along S. coast and locally 

 on N. ; also in trawl refuse, and in 25 fm. in. 

 Falmouth B. ! Scilly everywhere at 1. w. but n. c. 

 var. Lyons! Leach, near Fowey (M.) ; Helford 

 (Hockin) ; Mount's B. alive from trawl (Tre- 

 gelles) ; Porthgwarra (Marquand) ; under stones 

 and overhanging rocks on the Golden Ball bar, 

 and in deep water off Menavawr (S. & C.). 

 var. humilior Jeffreys, Scilly (M.). var. laev igata 

 J. Sow, Helford (Hockin), trawl refuse Mount's 



B. (Tregelles). var. granulifera Jeffreys, Mount's 184. 

 B. (Tregelles). var. elate Jeffreys, one spec. 

 Falmouth (James) 



173. Delphinoidea cutkriana, Clark. Fowey (Barlee), 



Falmouth in 30 fm. ! Helford (Hockin), and 

 Sennen ; dredged off Menavawr and Muncoy jgr 

 Neck, Scilly (M.) 



1 74. D. nitens, Philippi. Fowey (M.) ; in 40 fin. off 

 the Dodman ! in 30 fm. Falmouth B. ! Sennen; 

 off Menavawr and Muncoy neck (M.) 



175. D. serpuloides, Mont. In 30 fm., Falmouth B. ! 186. 



Mount's B. ; 5 specs, at Harlyn B. (Thelwell) ; 

 dead shells off Menavawr and Muncoy, but 

 live specs, at 1. w. and in Crow S. Chan. (M.) 



176. Phastanella pullus, Linn. Gen. dist. and locally 



c. on Zostera and algae from 1. w. down to 187. 

 lofm. ; Scilly abund. in the roads, var. pul- 

 chella Rich., Scilly (M.) 



148 



Lacuna eras sior, Mont. Porthcurnow (Dennis); 

 Hayle (Hockin) ; 2 dead specs, in deep water, 

 Scilly (S. & C.) 



L. divaricata, Fab. On Zostera and fucus- 

 covered rocks from 1. w. to 1. s. t. ; c. at intervals 

 along S. coast ; one spec. Harlyn B. (Thelwell). 

 var. quadnfasdata Mont, in shell sand irregularly 

 along S. coast 



L. parva, da Costa. Occ. on sea-weed between 

 l.w. and 1. s. t-m. ; Cawsand B. (M. B. A.) ; 

 near Polperro ! Porthcurnow (Dennis), Land's 

 End (Hockin) ; dead shells, Hayle ; 3 specs. 

 Harlyn B. (Thelwell) ; St. Mary's, Scilly. 

 var. conica Jeffreys, and var. expansa Jeffreys, 

 Mount's B. (M.). var. lactea Jeffreys, Hayle 

 (Miss Hockin) 



L. pallidula, da Costa. Gen. dist. and locally 

 c. round the coast, gen. on fucus-covered rocks 

 at 1. w. also at 30 fm. in Falmouth B. ! at Scilly 



1 spec, from the inner channel, 2 from deep 

 water (S. & C.). var. patula Thorpe, Lantivet 

 B. (Laughrin), Falmouth (M.). var. albescens 

 Jeffreys, Mount's B. (M.) 



Littorina obtusata, Linn. Abund. everywhere on 

 Fucus and Zostera. var. neritlformis Brown, 

 Land's End ! var. ornata Jeffreys, Falmouth 

 (James), Helford (M. R. L). var. fabalts 

 Turton, Falmouth, and Maenporth (Dennis) 



L. nentoides, Linn. Locally c. round coast on 

 rocks at h. w. m. and above ; Scilly on the 

 outer rocks only 



L. rudis, Maton. Abund. on almost every 

 rocky shore on the mainland and at Scilly about 

 h. w-m. var. saxatilis Johnst. Helford and 

 Mount's B. (Miss Tyacke). var. sulcata Leach, 

 Land's End (Turton), Scilly (Barlee). var. 



jttgosa Mont. Falmouth (M.), Helford (M. R. I.), 

 Prussia Cove (Miss Tyacke), Penzance, r. 

 (James), var. patula Thorpe, Lizard, Mount's 

 B., Gurnard's Hd. (Miss E. Carne), Portreath, 

 St. Agnes, var. globosa Jeffreys, Hayle (Miss 

 Hockin). var. tenebrosa Mont. Hayle, Port- 

 reath, St. Agnes ; Newquay c. var. ilmiRs 

 Jeffreys, Kynance Cove (Miss Tyacke) 



L. httorea, Linn. N. unc. between t-m. on 

 mainland and often most abund. ; at Scilly only 



2 specs, found on the E. coast of Bryher (S. & 

 C.). var. brev'uula Jeffreys, Maenporth (Miss 

 Dixon) ; also in M. R. I. 



Rissoa parva, da Costa. Gen. dist. round coast 

 and at Scilly from between t-m. to 40 fm. var. 

 interrupta Adams, littoral and shallow water 

 form ; irregularly round coast, Scilly c. var. 

 exilis Jeffreys, Falmouth and Scilly (M.) 



R. inconspicua, Alder. Porthpean nr. St. Austell 

 under stones, rr. (Richards) ; in 25 fm. Fal- 

 mouth B. ! Mount's B. chiefly dead shells ; 

 Porthcurnow apparently all dead shells ; Land's 

 End ; occ. off Muncoy Neck, Scilly (M.) 



R. albella, Loven. Type has not been found, but 

 James obtained 3 specs, of the var. sarsii Loven, 

 at Land's End. 



