George Brettingham Sowerby II

Name: Illustrated Index of British Shells
Author: George Brettingham Sowerby II

Illustrated Index of British Shells (1859)

Summary

“Illustrated Index of British Shells”, published in 1859, is a work by George Brettingham Sowerby II. It explores elements such as fath, Mc and Zetland.

Quotes from Illustrated Index of British Shells (George Brettingham Sowerby II)

George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ Shells of Arcadæ, 1-14, have the hinge characterized by a series of teeth on each side of the apex. Nucula, Arca, and Pectunculus are easily distinguished. Limopsis, 14, has a spring pit between the two rows. Our figure of Pinna, 16, is from a young specimen: it grows to great size, and spins a very silky byssus. The shell of Anomia, 18, is fixed to rocks, etc., by means of a bony button passing through a hole or sinus in the lower valve. Lima, 22-24, has a light, thin shell, and its mantle is adorned with beautiful fringes. ”

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George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ The Veneridæ, 4-16 and 23, or "Venus" tribe, differ from it in not having the spring-holding pit. Artemis, 10, 11, is known by a large angular bend in the pallial impression; and Cytherea, 23, is distinguished from Venus by one tooth on the hinge standing out a little way from the central ones. Astarte, 17-22, belongs to the Cyprinidæ.
Plate V.
Fig. 1-3 also represent genera of Cyprinidæ. They have no bend in the palleal impression. Cardium, or "Cockle," 4-13, presents a peculiarity in the foot, which is large and bent, and enables the animal to leap in a very lively manner. ”

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George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ Unio, 1-3, has teeth on the hinge, and Anodon, 4, has not: it is a thin shell. The foot of these molluscs is very large, and is used in cutting the animal's way through the mud in which it burrows. Of the marine, or true Mussels, Modiola, 6-9, and Crenella, 12-17, have a portion of the shell reaching beyond the point or apex, which in Mytilus is terminal, 18-21. Dreissina, 5, is shaped like Mytilus, but lives in fresh-water docks. The Mytilidæ attach themselves by means of horny threads spun from the foot, and called a "byssus." ”

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George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ Solens burrow in deep holes in the sand, where they remain in a perpendicular position at a great depth below the surface, where yet their presence may be traced by the opening left. Their large muscular foot enables them to take great leaps when out of the holes.
Plate III.
Psammobia, 1-4, and Tellina, 5-16, include some of our most beautiful shells. The animals have a large, fleshy, curved foot, and the mantle open and fringed. Their shells are provided with an external ligament, and teeth on the hinge. Donax, or "Wedge," 19, 20, has long, separated, fringed siphons. ”

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George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ The loan of delicate and minute shells to authors and artists has so often proved disastrous, that nothing but a generous friendship, and a zealous love of Natural History, could have induced proprietors so freely to incur the risk. ”

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George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ Gastrochæna, 14, has a gaping shell, and encloses itself in a bottle-shaped covering of cemented stones and sand. Saxicava, 15, 16, Venerupis, 18, and Petricola, 17, burrow in sand, or live in holes of rocks.
Myadæ, or "Gapers," Mya, 19, 20, and Panopæa, 21, 21*, burrow downwards in sand and mud, their siphons protected by a coriaceous covering. Their shells are not closed all round, and those of Mya have a spoon-shaped process in the hinge of one valve.
Corbulidæ, 22-28, have short siphons with fringed edges, and the foot protrudes through a hole in the otherwise closed mantle. ”

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George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ Our common Slugs yield, on dissection, thin shells, which are concealed beneath the mantle, Limax, 9-12. The shells of Testacellus, 13, 14, are fixed near the end of the foot, outside. The glassy shells of Vitrina, 15, 16, do not enclose the whole Slug-like animal. The other genera of Land Snails have shells large enough to receive the animal when retracted and withdrawn for repose. ”

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George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ A common garden Snail, observed crawling and feeding, is easily seen to possess a distinct head, upon which are four feelers or horns, with eyes at the end, and underneath which is a mouth; a broad disc, extending the whole length of the body, is the organ of locomotion ”

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George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ C. suecicum, Loven.—C. Swediense, Reeve, C. Loveni, Thompson.—Down, Oban, Zetland, 30 to 70 fath., Rr. Oval, equally ribbed.
09. C. aculeatum, Linn.—C. ciliare and parvum (young) .—S. Devon, Mc. Thin, oblique, with thorn-like tubercles; interstices of ribs smooth.
10. C. rusticum, Linn.—C. tuberculatum, Linn.?—Paignton, Torbay, Velvet Strand, Dublin co., Mc. Thick, not oblique, coarsely wrinkled.
11. C. echinatum, Linn.—C. mucronatum, C. spinosum.—Brit. co. generally, mud and sand, 7 to 80 fath. Oblique, wrinkled; hinder tubercles sharp. ”

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George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ S. zonatus, Turt. (Bulla) —Young specimen taken at Zetland by Mr. Jeffreys, resembling older Norwegian specimens. More oval than S. lignarius. Spire umbilicated.
Aplysia.
28. A. hybrida, Sowerby.—Laplysia depilans, A. depilans and punctata.—Brit. co. generally. Among seaweeds, 0 to 6 fath., C.
Pleurobranchus.
29. P. membranaceus, Mont. (Lamellaria.) —Devon, Arran, Cork, etc. Low-water, Mr. Broad, flexible.
30. P. plumula, Mont. (Bulla.) —Guernsey, Devon, Skye, etc. Littoral, R. Narrow, less flexible.
Spirula.
31. S. Peronii—Once taken near Swansea, imperfect.
PLATE XXI.
Limnæus. ”

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George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ Thin, glassy, more ventricose than L. tentaculata.
24. L. tentaculata, Mont.—Sig. and Cor.—Falmouth, Swansea, Arran, etc. Laminarian, Mr. Upper whorls less full than L. perspicua.
Otina.
25. O. otis, Turt. (Helix.) —Velutina, Galericulum ovatum.—Wales, Devon, Channel Isls., Clare, etc., Mc. Littoral.
Trichotropis.
26. T. borealis, Broderip and Sowb.—T. and Murex carinatus, umbilicatus, acuminatus, etc.—N. Scotland, W. Ireland, 15 to 80 fath., R.
PLATE XVII.
Odostomia. ”

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George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ Inhabits mud.
Fig.
01. L. intermedia?, Sowb.—Perhaps only the young of L. elliptica.
02. L. elliptica, Lamk.—Mactra lutraria, Linn.—Scarborough, Torbay, Dublin, Forth, Lerwick, etc., C. Broad, oval.
03. L. oblonga, Chemn.— (Mya) L. solenoides, L. hians, Mactra hians, Chama magna.—Cornwall, Devon, etc., Mc. Arched, narrow.
Tapes. Burrows in mud and stone.
04, 5. T. pullastra, Wood.—Venus pullastra, V. perforans (var. f. 4) , Venerupis nucleus, Pullastra vulgaris, etc.—Plymouth, Scarborough, Swansea, Forth, etc., C.
06. ”

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Source: Wikisource

George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ A. compressa, Mont.— (Venus) Venus and Crassina Montagui, Cyprina comp.—Scarborough, Northumbria, Bantry Bay, Firth of Forth, 7 to 40 fath., M. C.
21. A. crebricostata, Forbes.—Zetland and Skye (dead) , R. Ribs more numerous than in A. sulcata.
22. A. arctica, Gray.— (Crassina) Venus borealis, Astarte compressa.—Aberdeen, Zetland, St. Andrew's bay, etc., Rr. Lenticular, not ribbed.
Cytherea.
23. C. chione, Linn.— (Venus.) —Plymouth, S. Devon, Falmouth, Carnarvon, 12 to 20 fath., Mr.
PLATE V.
Cyprina. ”

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George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ C. norvegicum, Spengler.—C. lævigatum, C. serratum, C. oblongum, C. Pennantii.—Brit. co. generally. Sand and gravel, 15 to 80 fath. Smooth, variegated when young.
Lucina.
14. L. divaricata, Linn. (Tellina.) —Cardium arcuatum, L. arcuata, commutata.—Near Falmouth, 20 fath., Rr. Rounded, with diverging ribs.
15. L. flexuosa, Mont. (Tellina.) —Venus sinuosa, Amphidesma flexuosa, L. sinuata; gen. Cryptodon, Axinus, and Ptychina.—Clyde, Bantry, Anglesea, etc., 7 to 80 fath., Mc. Thin, with a fold behind.
16. L. borealis, Linn. (Venus.) —Tellina radula, Lucina r., L. alba.—Many Brit. ”

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George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ N. nucleus, Linn. (Arca.) —N. margaritacea, Glycimeris argentea.—Brit. co. generally, 7 to 90 fath., C. Thick, obtuse; beaks terminal.
02. N. decussata, Sowerby.—N. sulcata, N. Polii.—Hebrides, Loch Fyne, Dublin Bay, 30 to 50 fath., Mr. Large, striated; beak not terminal.
03. N. radiata, Hanley.—N. and Arca nucleus and radiata.—Torbay, Milford Haven, Arran, etc., 10 to 70 fath., Mc. Prolonged anteriorly, rayed.
04. N. nitida, Sowerby.—N. nucleus, var.—Numerous British loc., 1 to 35 fath., C. Shining, ends rather pointed. ”

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George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ S. prismatica, Mont.— (Ligula) Mya and Amphidesma p.—Weymouth, Forth, Dublin, Antrim, etc., littoral, Mc. More pointed and narrow than S. intermedia.
20. S. tenuis, Mont.— (Mactra) Amphidesma t.—Dorset, Scarborough, Antrim, etc., 5 to 100 fath., Mc. Short, subtrigonal.
21. S. intermedia, Thompson.—Mya and Syndosmya nitida, Abra profundissima.—In mud, 6 to 100 fath., Zetland, Skye, Cape Clear, etc., R. Broader and more pointed than S. prismatica.
22. S. alba, Wood.— (Mactra) M. and Amphidesma Boysii and A. album.—Brit. co. generally, C. Short, rounded, oval.
PLATE III.
Psammobia. ”

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George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ E. distorta, Deshayes.—Brit. co. gen., Mc.; 12 to 90 fath.; N. and S. Eu. Small, tortuous.
24. E. stenostoma, Jeffreys, Ann. Nat. Hist. 1858.—Zetland and Norway, Rr. Thin, with rapidly increasing whorls.
25. E. subulata, Donov. (Turbo.) —Strombiformis, Helix, and Melania s. and glaber, trifasciatus, Donovani, and lineata.—S. and W. Brit., Ire., Zetland, Medit., 10 to 80 fath., Mr. Whorls deep, banded.
26. E. bilineata, Alder.—Or E. subulata, var.—Northumberland, etc. Whorls more swelled than E. su., two-banded.
PLATE XVI.
Chemnitzia. ”

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George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ Venerupis. Bores and inhabits stone.
18. V. Irus, Linn. (Donax) .—Tellina cornubiensis, Cuneus foliaceus, Petric., and Pullastra, I.—In limestone at Plymouth and other southern coasts. Wedge-shaped.
Mya. Burrows in mud and sand.
19. M. truncata, Linn.—M. ovalis and Sphænia Swainsoni (young) .—Various localities and depths, C. Truncated at end.
20. M. arenaria, Linn.—Herne Bay, Portsmouth, etc., C. Tapering at end.
Panopæa. Burrows in mud.
21. P. norvegica, Spengl.—P. glycimeris, P. arctica.—Scarborough, Zetland (90 fath.) , Rr. Quadrate. ”

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George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ Mya, Venus, Trigonella, Mactra, Lutraria, Listera.—Specific syn.: hispanica, borealis, plana, gaditana, Listeri, compressa.—Scarborough, Southend, Swansea, Cork, Clyde, C. Broad, compressed.
Donax.
19. D. anatinus, Lamk.—D. trunculus, Linn.?, Cuneus vittatus, D. ruber (young) .—Brit. co. generally, sandy shores, C. Broad; margin crenulated.
20. D. politus, Poci.— (Tellina) D. and Capsa complanata.—S. Devon, Bantry Bay, etc., Mr. Smooth; inner edge not crenated.
Mactra. Lives on sandy beaches. ”

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George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ The common eatable Scallop. Valves unequal.
14. P. similis, Laskey.—O. and P. tumidus.—Fr. Forth, Isl. Man, Lerwick, Cape Clear, etc., Mc. Minute, smooth, with undulating marks.
15. P. striatus, Müller.—P. aculeatus, fuci, etc.—Scotland, C.; England, R.
16. P. furtivus, Lovén.—Zetland, Guernsey, etc., 40 to 50 fath., Mr. More rounded, and with auricles less broadly based than P. striatus.
Hippothyris. Fixed by byssus.
17. H. psittacea, Gmel. (Anomia.) —A. rostrum-psittaci, Chem.; Terebratula psittacea.—Northumberland, Fr. Forth; deep water, Rr. as Brit. "The Parrot's-beak Anomia." ”

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George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ M. striolata, Scacchi, (Pleu.) —P. and Murex Smithii, Farranti.—S. Devon, Clyde, Guernsey, Bantry, etc., Medit., R. as Brit. Ribs angularly curved above.
21, 22. M. costata, Pennant, (Murex.) —Buccinum, Fusus, Pl. c., etc.; var. f. 22, M. Metcalfei.—Brit co. generally, 5 to 50 fath., N. and S. Eu., C. Body-whorl larger than No. 24.
23. M. coarctata, Forbes.—Pl., M. costata var., B. M.—Distribution as 21 and 22; not so common.
24. M. septangularis, Mont. (Murex.) —M., F., and Pl. costatus, heptagona, etc.—Torbay, Bristol Channel, Forth, Galway, 5 to 30 fath., Mc. ”

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George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ Jan. 1859.—Skye.
Akera.
16. A. bullata, Müller.—Bulla Akera, B. norvegica, B. resiliens, fragilis, flexilis, Hanleyi.—Southampton, Zetland, Galway, etc. Littoral, Mc. N. and S. Eu.
Bulla.
17. B. Cranchii, Leach.—B. punctura and striata.—Brit. co. gen. Devon, Aberdeen, Cork, etc., 50 to 100 fath., Mr. Spirally puncto-striated.
18. B. cornea, Lamk.—B. hydatis (as of Linn.) , B. navicula, B. ampulla, Haminea hydatis.—South Brit. co., 0 to 50 fath., C. S. Eu. Broad, thin.
19. B. hydatis, Linn.—Haminea elegans.—Guernsey and Mediterranean. Narrower and more solid than B. cornea. ”

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George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ O. glabrata, Muhlfeldt, (Helix.) —Rissoa punctulum, etc.—Zetland, R. Pillar-lip thin, arched.
20. O. rissoides, Hanley.—O. scalaris.—Channel Isls., Devon, Cornwall, Tenby, etc., Mc. Thin, conical, no umbilicus.
21. O. albella, Lovén.—O. rissoides, var., B. M.—Guernsey, S. Devon, etc. Turreted, upper whorls more cylindrical than No. 20.
22. O. obliqua, Alder.—Tynemouth, Guernsey, 7 fath. to deep water, Rr. Thin, oblique.
23. O. diaphana, Jeffr. Ann. Nat. Hist. New Ser. vol. ii. p. 341.—R. Manifestly distinct from No. 22.
24. O. strialata, Alder.—Northumberland, Rr. Conical, striated. ”

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George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ O. interstincta, Mont. (Turbo.) —T., O., Voluta, and Jaminia canaliculata, oblonga, and obtusa.—Brit. co. generally. Shallow water, C. With longitudinal ribs.
27. O. dolioliformis, Jeffr.—Scarborough, Exmouth, Swansea, Tenby, Rr., Scotland. Oval, body-whorl very tumid.
28. O. Warrenii, Thompson, (Rissoa.) —Turbonilla and O. obliqua, O. decorata.—Dublin, S. Devon, W. Scotland, R. Turreted. Mouth oblique; an umbilicus ”

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George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ P. crispata, Linn.—P. bifrons.—Hastings, Liverp., Scarb., Dubl., Forth, etc., C. No dorsal plate; valves broad, beaked, with oblique division.
13. P. striata. Rare and doubtful as British. Valves closed.
Pholadidea. Pierces and inhabits stone.
12. P. papyracea, P. Loscombiana, P. Goodalli.—S. Devon, N. Ire., R. Valves closed, with a cup. P. lamellata, Turt., when young, not closed; no cup.
Gastrochæna. Bores and inhabits stone, thick shells, etc.
14. G. modiolina, Lamk.—G. Pholadia, G. hians, Mya dubia, Mytilus ambiguus, Pholas faba.—Torbay, Birterbuy, Galway, Weymouth, etc. ”

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George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ Medit., Brit.?
04, 5. C. rufa, Phil.—And var. C. fulvocincta (f. 5) .—Brit. co. generally, 15 to 50 fath., Mc. Spiral grooves between ribs.
06. C. formosa, Jeffreys, (Odostomia.) —Swansea, Shellness, Bantry Bay, etc., Mr. Grooved between ribs, excavated at suture.
07. C. fenestrata, Forbes and Jeffr. (Odostomia.) —Torbay, etc., R. With pits between spiral ridges.
08. C. rufescens, Forbes.—Odostomia and Turritella indistincta and scalaris.—Clyde, Hebrides, Oban, 15 to 50 fath., R. More stout than C. rufa. Three-banded.
09. C. scalaris, Philippi, (Melania.) —Exmouth, Guernsey, Medit., R. Ribbed ”

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George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ C. islandica, Linn. (Venus.) —C. vulgaris, V. mercenaria.—Brit. co. generally, most abundant north, 5 to 80 fath. Oval, with thick epidermis.
Circe.
02. C. minima, Mont. (Venus.) —Gen. Cyprina and Cytherea triangularis, apicialis, Cyrillii, minuta.—Guernsey, Cornwall, Milford Haven, Clyde, Bantry Bay, etc., 10 to 50 fath., C.
Isocardia.
03. I. cor, Linn. (Chama.) —I. hibernica, Cardita cor.—Dublin, Skye, etc., Mc. Heart-shaped, beaks coiled.
Cardium, or Cockle.
04. C. pygmæum, Donovan.—C. exiguum.—Herne, Sark, Weymouth, Zetland, Bantry Bay, 5 to 50 fath., Mc. Hinder side large, angular. ”

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George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ S. planorbis, O. Fabr. (Helix.) —Turbo, Sk. depressa.—Brit. shores generally, on coastal Corallines, C. Flat, like a Planorbis.
20. S. divisa, Flem. (Turbo.) —Helix and Sk. serpuloides, Adeorbis striatus.—Scarborough, Weymouth, Orkney, Galway, etc., 7 to 25 fath., Mr. Striated.
21. S. costulata, Möller, (Margarita.) —Loch Fyne, Rr.
22. S. lævis, Philippi, (Delphinula.) —Newcastle-on-Tyne, Rr.
Aclis.
23. A. ascaris, Turt. (Turbo.) —Turritella, Alvania, and Pyramis supranitida and acutissima.—Ireland, Tenby, Zetland, Mr.
24. A. supra-nitida, S. Wood (Alvania.) —Tenby, Dublin, etc., Rr. ”

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George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ A. striata, Lovén.—Hebrides, R. Rayed, striated, with apex not marginal.
21. A. patelliformis, Linn.—A. undulata.—Cape Clear, etc., 1 to 50 fath., Mr. Flat, ribbed.
Lima.
22. L. subauriculata, Montagu, (Pecten.) —L. nivea, sulcata, etc.—Plymouth, Man, Zetland, Belfast, etc., Mr. Nearly straight.
23. L. hians, Gmel. (Vitræa.) —L. tenera, fragilis, aperta, etc.—Channel Isls., Penzance, Oban, Belfast, etc., Mc. Oblique, gaping at sides.
24. L. Loscombii, Sowerby.—Pecten and Ostrea and Lima fragilis and bullata.—Many Brit. loc., 10 to 50 fath., Mc. Oblique, closed at sides.
PLATE IX.
Pecten. ”

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George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ E. acicula, Philippi, (Melania.) —E., Chemn., Odost., and Eulima clavula.—Skye, Rr.
28. E. affinis, Philippi, (Eulima.) —Pyramis, Odost., and E. gracilis, lævis.—Skye, Torbay, R.
29. E. clavula, Lovén (Turbonilla.) —Odostomia c.—Torbay, Rr. Guernsey.
30. E. obeliscus, Jeffreys, Ann. Nat. Hist. Jan. 1858.—Shetland.
PLATE XV.
Turritella.
Fig.
01. T. cornea, Lamk.—T. communis, var., B. M.—Cork and Zetland, Mr. Whorls less flat and less rapidly enlarged than T. communis. A white var. exists (T. nivea) .
02, 3. T. communis, Risso.—T. cornea?, T. Terebra.—Brit. co. generally; 4 to 100 fath., Cc. ”

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George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ L. squamosum, Mont.—Solen and Lutraria s.—Salcombe Bay, Tenby, Cork, etc., R. Flat, subquadrate.
10. L. nitidum, Turt. (Kellia.) —Torbay, Skye, R. Less square and flat than L. squamosum.
11. L. convexum, Alder.—Bantry Bay, Rr. Convex, granulated.
12. L. Clarkiæ, Clark.—Exmouth, Plymouth, Zetland, Rr. Minute, oval, smooth.
13. L. sulcatulum, Jeffr.—Annals, Feb. 1859. Guernsey, Mc. Concentrically wrinkled.
Galeomma. Adheres to rocks by byssus.
14, 15. G. Turtoni, Sowb.—Channel Islands, and Exmouth. Oblong, gaping.
Cyclas. Inhabits fresh-water.
16. C. cornea, Linn. (Tellina.) ”

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George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ O. truncatula, Jeffreys.—Plymouth. Elongated.
11. O. cylindrica, Alder.—Turbo nivosus?—S. Devon, Ilfracombe, Guernsey, Cork, R. Cylindrical, few whorls.
12, 13. O. eulimoides, Hanley.—O. crassa, O. pallida (var. f. 13) , O. notata.—Brit. co. generally. Coralline zone, Mr. Ample body-whorl.
14. O. dubia, Jeffr.—S. Devon, Lerwick, Guernsey, Mr. Rather large body-whorl.
15, 16. O. alba, Jeffreys, (and var.) —Swansea, Skye, Zetland, Guernsey, Mr. Thin, whorls rounded.
17. O. nitida, Alder.—S. Devon. Littoral, Mc. Aperture differently formed from No. 17. ”

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George Brettingham Sowerby II, Illustrated Index of British Shells (1859)

“ H. pulchella, Müller.—H. costata, paludosa, crenella, minuta, etc.—Common and general under stones, etc.
24. H. revelata, Férussac.—Cornwall, Devon, Torquay, Guernsey. Rare. A transparent, greenish, hairy shell.
25. H. aperta.—H. neritoides, naticoides, etc.—A single specimen found in Guernsey. Not uncommon in S. Eu. Our specimen is foreign.
26. H. umbilicata, Mont.—H. rupestris, etc.—On perpendicular heights and under stones, C.
27. H. pygmæa, Drap.—H. minuta, etc.—Common in damp places.
28. H. lamellata, Jeffreys.—H. Scarburgensis, seminulum.—Brit. ”

George Brettingham Sowerby II

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