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 MARINE ZOOLOGY 320. 301. Ocincbra erinacea, Linn. N. unc. and locally abund. between t-m. on stony and rocky beaches along S. coast ; a few specs, dredged in 30 fm. in Falmouth B. ; dead shells occ. from N. coast ; only one live spec., Scilly in deep water (S. and C.) 302. Trophon muricatus, Mont. Evidently somewhat sparsely dist. on sand and muddy gravel along S. coast in 12 to 40 fm. ; Wolf Rk. and off Menavawr, Scilly (S. and C.) ; 2 dead shells from Hayle (Hockin). var. lactea Jeffreys, Scilly (M.) 303. T. clathratus, Linn. Type does not occur ; the var. truncata StrSm, Scilly (Smart and Marshall) 304. Purpura lapillus, Linn. C. often abund. round coast and at Scilly on rocks between t-m. ; colour vars. numerous and beautiful, var. imbrl- cata Lmk. Falmouth, Helford, Hayle, New- quay, var. major Jeffreys, Helford (Rogers) 305. Nassa reticulata, Linn. F. c. along S. coast and at Scilly, and in places abund. in Zostera and in muddy gravel ; apparently local on N. coast. var. nltida Jeffreys, Falmouth (Norman) 306. ff. incrassata, StrOm. F. c. on rocky beaches all round coast near 1. w-m. in fine silt in crevices and under stones ; c. off the Dodman 40 fm. ! and in Falmouth B. locally down to 30 fm. ! Scilly abund. var. major Jeffreys, 3 specs. Falmouth (James) ; Hayle. var. minor Jeffreys, off Menavawr, Scilly (M.). var. simulans Jeffreys, Scilly (M.) 307. N. pygmaea, Lmk. Under sea-weed and stones near 1. w-m. ; Gorran Haven ! Falmouth, Helford ; in dredgings Mount's B. (Tregelles), dead shells at Hayle 308. Beta turricula, Mont. From trawl refuse and dredgings in Falmouth B. ; Mount's B. (Pen- zance List) 309. B. trevelyana, Turton. Scilly (Miss Hockin), 22 310. B. rufa, Mont. Occ. in trawl refuse ; Meva- gissey (Dunn), Falmouth (Cocks), Land's End, Wolf Rk. and Scilly. var. lactea Jeffreys, St. Mary's S., Scilly (M.). var. semicostata Jeffreys, Land's End (Hockin). var. crancbi Brown, Falmouth (Cranch) 311. Haedropleura costata, Costa. Dead shells occ. in the shell sand all along S. coast and live specs. dredged in 15 to 30 fm. Falmouth B., Mount's B., and in 40 fm. off Menavawr, Scilly (S. and C.) 312. MangiRa strwlata, Scacchi. Falmouth *nd Land's End (Hockin) ; Mount's B. (Tregex is) 313. M. attenuata, Mont. About Plymouth occ. in 20 to 30 fm. on muddy gravel (M.B.A.) ; Falmouth Harb. (Hockin) ; Crow S., Scilly, one spec. (S. and C.) 314. M. costata, Donovan. Evidently n. unc. from 20 fm. downwards along S. coast ; single specs. occ. at 1. s. t. ; dead shells at times f. c. ; Harlyn B. (Thelwell) ; in deep water off Menavawr c. (S. and C.). var. coarctata F. and H., Scilly (M.) 3 1 5. Mangilia rugu/osa, Philippi. First found in Eng- land by Hockin at St. Merryn in 1 865 ; Padstow (Goodall) ; one ' young and fresh ' example Muncoy neck, Scilly (M.) 316. M. brachystoma, Philippi. Falmouth Harb. (Hockin) ; identified in sand from Mount's B. by Chaster; 2 specs. Harlyn B. (Thel- well) ; Scilly (M.) 317. M. nebula, Mont. One spec. Queen's Gnd., Plymouth (M.B.A.) ; occ. about Falmouth, Hel- ford and Mount's B. ; at Land's End (Hockin) ; I spec, at Harlyn B. (Thelwell) ; Crow S. and off Menavawr, Scilly (S. & C.). var. laevi- gata Philippi, Helford (Hockin) ; Marazion (Miss Hockin). var. vittata Norman, I large spec, quite 5 mm. long at Scilly (S. & C.). var. ehngata Jeffreys, Scilly (M.) 318. M. (Teres) anceps, Eichwald. In 30 fm. off Polperro (Robinson) ; Helford and Wolf Rk. (Hockin) rr. in deep water ; Scilly (S. & C.) 319. M. (Bellardiella) gracilis, Mont. Evidently gen. dist. and in places at least f. c., esp. on muddy and sandy gravel along the S. coast at 15 to 40 fms. ; dead shells, Hayle and Pad- stow ! n. unc. in the Menavawr dredgings at Scilly Clathurella leufnyt, Michaud. The type does not occur, but the var. boothl Brown has been found at Looe (J. C.), 40 fm. off the Dod- man ! in 25 fm. Falmouth B. ! Falmouth Harb. (Hockin) ; at Land's End (J. C.) ; and St. Mary's S. Scilly (M.) C. Knearis, Mont. At intervals along the S. coast, 5 to 40 fm. and locally n. unc. ; Wolf Rk. (Miss E. Came) ; Mawgan Forth (Perrin) ; Harlyn B. (Thelwell) ; off Menavawr c. (S. & C.). var. alba Marsh., in 40 fm. at Scilly ; Land's End r. (M.) C. reticulata, Renier. A few specs, in 30 fm. off Polperro (Robinson) ; off Gorran Haven ! at Falmouth (Hockin) ; in St. Mary's S., Scilly (M.). var. asperrima F. & H. Falmouth ; Scilly (M.) 323. C.purpurea, Mont. Occ. on stony bottoms and in rocky chinks from 1. 1. down to 40 fm. along the S. coast and at Scilly. Dead shells in shell sand, r. round to Hayle and at Padstow ! one at Bude ! var. Philberti Michaud, a fragment at Scilly (S. & C.) TECTIBRANCHIA 324. Actaeon tornatilis, Linn. Dead shells not in- frequent along S. coast, and occ. on the N. ; live specs, in quantity on muddy sand in 1 2 fm. off Pennance, Falmouth B. ! dredged in Mount's B. (Tregelles) ; Crow S., and in thick mud under Round Is., Scilly (S. & C.) 325. Tornatina mammillata, Philippi. Dead shells found sparingly at Plymouth and in Whitsand B. ; in 30 fm. off Polperro ! in 25 fin. Fal- mouth B. ! in Mount's B., Land's End, and on beach at Guthers, Scilly [ 53 20 321,