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 A HISTORY OF CORNWALL 326. Tornatina truncatula, Bruguiere. Dead shells not infrequently found along S. coast ; and at Maw- gan Forth (Perrin), and Harlyn B. (Thelwell) ; live specs, in 3 ofm. off Polperro (Robinson) ; in 40 fm. off the Dodman ! in Falmouth B. ! on the Menavawr gravels abund. (S. & C.). var. pellucida Brown, Scilly (M.) 327. T. obtusa, Mont. Helford; Mount's B. (Pen- zance List) ; Hayle (Hockin) ; Crow S. and at Guthers, Scilly, but r. (S. & C.). var. lajonkai- reana Bast. Scilly with the type (S. & C.) 328. T. nitidula, Loven. Scilly (M.) 329. T. umbilicata, Mont. Dead shells, Falmouth ; in 1 2 fm. off Pennance ! Mount's B. ; Hayle (Hockin) ; Crow S., Scilly c. (S. & C.) 330. Diaphana expansa, Jeffreys. Several dead specs. obtained by Marshall off Menavawr, the first English record 331. D. byalina, Turton. Obtained occ. in trawl refuse, occ. in the stomach of Trig/a lyra ; Mevagissey ! Falmouth (Cocks) ; Helford ! Porthcurnow, dead shells ; Land's End (Hockin) ; i or 2 only, deep water, Scilly (S. & C.) 332. Scaphander lignartus, Linn. C. on most of the trawling gnds. along S. coast ; in muddy sand in 12 fm. off Pennance, and in 10 fm. off Helford river ! occ. in sand at 1. s. t. ; some- times at Hayle, and sparingly at Scilly. var. alba Jeffreys, Mount's B. (Tregelles) and Hayle (Miss Hockin) 333. Volvulella acuminata, Bruguiere. Dead shells round Plymouth and off Polperro ! off Nare Pt., Helford (Hockin) 334. Bulllnella cylindracea, Pennant. N. unc. locally on S. coast in muddy sand ; near Fowey ! in Falmouth Harb. (Mont.) ; in 1 2 fm. off Pen- nance ! in Mount's B. (Tregelles) ; n. unc. Hayle ; v. c. on muddy patch in 8 fm., Pad- stow B. ! Crow S., Scilly (S. & C.) 335. Haminea hydatis, Linn. Occ. abund. in Zos- tera beds and in muddy sand in shallow water on S. coast, and at Scilly ; very local, Ply- mouth ; in 1902 v. abund. Falmouth, in 1903 and 1904 rr., in 1905 none found ! 336. Roxania utriculus, Brocchi. One spec, off Penlee Pt. (M.B.A.) ; Falmouth (Hockin) ; in 1 2 fm. off Pennance ! Mount's B. (M.) 337. Accra bullata, Muller. Occ. about Falmouth and Helford ; Scilly (Lord Vernon and A. H. Cooke). Vallentin obtained young specs, at Falmouth in the sub-genital pits of Aurelia aurita 338. Phillne scabra, Mull. One spec. Whitsand Bay (M.B.A.) ; Falmouth ; Mount's B. ; Hayle (Hockin) ; one at Mawgan Forth (Perrin) ; dead shells c. in Crow S., Scilly (S. & C.). var. circa Marsh., dredged off Muncoy, Scilly (M.) 339. P. catena, Mont. In 40 fm. off the Dodman ! in 20-25 frn- Falmouth B ! Mousehole (Dennis) ; Porthcurnow, dead shells ; Land's End (Hockin) ; i spec. Harlyn B. (Thelwell) ; in St. Mary's S. and off Menavawr, Scilly (M.). var. zona Jeffreys, off Menavawr, Scilly (M.) 340. Philine angulata, Jeffreys. St. Ives and Scilly (M.). var. circumlustra Marsh., off the Eddy- stone in 28 fm. (M.) [P. quadrata, S. V. Wood. Marked as Cornish by Hockin, but no authentic spec, has been preserved] 341. P.punctata, ]. Adams. N. unc. locally along S. coast from shallow water down to 40 fm. ; Hayle and among Obella at Padstow ! Scilly (Jenkinson). var. cingulata Marsh., Sennen, and St. Mary's S., Scilly (M.) 342. P. pruinosa, Clark. Falmouth (Miss Vigurs) ; St. Mary's S., Scilly (M.) 343. P. mtida, Jeffreys. Mount's B. (Chaster and Burkill) 344. P. aperta, Linn. C. on sand, and esp. on muddy sand round coast to Hayle ; c. Padstow B., 1902 ! Scilly (Jenkinson) [Colpodaspis pusilla, M. Sars. A spec. February 1893 on rough ground about 2 m. S. of the Mewstone, Plymouth S. (M.B.A.)] 345. Llmacina retroversa, Fleming. Falmouth Harb. (Hockin) ; Mount's B. (Penzance List) ; Mena- vawr, Muncoy and St. Mary's S., Scilly (M.). var. macandreae, F. & H. Scilly (M.) [Cavo/inia tr'upinosa, Lesueur. Marked as Cornish by Hockin, but no spec, preserved] 346. Aplysia punctata, Cuvier. N. unc. along S. coast at 1. t-m., and in shallow water ; some- times abund. about Falmouth among Zostera ; very fine on St. Martin's Flats, Scilly (M.) 347. Clione limacina, Phipps. Pelseneer (Challenger Report) says : ' There is in the coll. of the Museum d'Histoire Naturelle of Paris a spec, from Falmouth, presented by Leach ' (Norman) 348. Pleurobranchus plumata, Mont. N. unc. locally along S. coast from under stones at 1. w-m. down to 25 fm. ; dredged in the roadstead, St. Mary's, Scilly (S. & C.) 349. Oscanius membranaceus, Mont. Very variable in numbers along the S. coast from the Zostera beds down to 30 fm. ; Scilly, on Zostera oft Cam Nea (S. & C.) 350. Runcina connata, Quatrefages. Small specs, abund. below Plymouth Hoe, Apr. 1889 (M.B.A.) ; in tidal pools between Gyllyngvase and Swan- pool, April, 1901 ! NUDIBRANCHIA 351. Hermaea bifida, Mont. Four specs, at different times on the Cornish side of Plymouth S. (M.B.A.) 352. H. dendritica, A. & H. One near Polperro (Robinson) ; 4 from the Devonshire side of Plymouth S., 2 Drake's Is. (M.B.A.) 353. Stiliger bellulus, d'Orb. Ten specs, dredged in Cawsand B., 3 August, 1892 (M. B. A.) ; had previously been lost to science for sixty years 354. Elysia viridis, Mont. Queen's Gnd, Plymouth S. (M. B. A.) ; 3 in tide pool near Meva- gissey ! 154