LASEA RUBRA, Montagu, sp. (Cardium).

Log 9, 18, 25, 28, 35, 40, 42, 62, B, C, D, E, F.

MONTACUTA BIDENTATA, Montagu, sp. (Mya).

Logs 6, 9, 11, 12, 16, 21. 22, 24, 26, 28, 31, 33, 35, [39], 40, 41, 42, 55, 57, 62, 63, 64, 70, 73, C, D, E.

Var. TRIANGULARIS.

Log 63.

M. SUBSTRIATA, Montagu, sp. (Ligula).

Station VIII. Logs 9, 11, 18, 20, 22, 28, 33, 42, 55, 73. Valves only.

M. FERRUGINOSA, Montagu, sp. (Mya).

Logs 11, 28, 42, [55]. Valves only.

Decipula ovata, Jeffreys.

Logs 11, 12, 21, 28. A few small valves. The discovery of this species off the south-west of Ireland is a matter of great interest. Jeffreys found a single valve at Station 18 of the "Porcupine" Expedition (outside Donegal Bay). I met with a pair of valves in material from the same dredging. It cannot be, as Jeffreys states, the Tellimya ovalis of G. O. Sars, for the latter author figures the hinge, which is of the ordinary Montacuta type and very different from that of the species under consideration.

LEPTON SQUAMOSUM, Montagu, sp. (Solen).

Logs [62], 63.

L. NITIDUM, Turton.

Logs 6, 9, 12, 21, 26, 28, 30, 33, 35, 40, 42.

Var. CONVEXA, Jeffreys.

Station VIII. Logs 11, 12, 21, 28, 30, 33, 40, 50, 63, 70.
Both type and variety are represented by valves only.

L. SYKESII, Chaster.
Logs 11, 13.

L. CLARKLE, Clark.

Station VIII. Logs 11, 12, 22, 28, 39, 42, 63, D.

Valves

only and everywhere rare. There is a considerable amount of variation in the shape of the different specimens.

L. OBLIQUATUM, Monterosato.

Logs 11, 42, 55, 63. A valve or two from each locality.

CARDIUM ECHINATUM, Linné.

[Stations VII., VIII.] Logs 3, 9, 12, 17, 21, 28, 40, 42, [55, 62, 70, 73].

C. EDULE, Linné.

[Station VIII.] Log 63, C.

C. EXIGUUM, Gmelin.

Logs 6, 11, 12, 31, 33, 35, 40, 50, 62, 63, C.

C. FASCIATUM, Montagu.

Logs 9, 12, 21, 24, 28, 30, 31, 50, 63, 70.

C. NODOSUM, Turton.

Station VIII. Logs 35, 40, 62, 63C, E.

LAVICARDIUM NORVEGICUM, Spengler, sp. (Cardium).
Station VIII. [Log 40.]

ARTICA ISLANDICA, Linné, sp. (Venus).

Station VIII. Logs 9, 11, 12, 22, 28, 30, 42, 55, 63.

TAPES VIRGINEUS, Linné, sp. (Venus).

Station VIII. Logs 33, 35, [40, 72].

[T. GEOGRAPHICUS, Chemnitz, sp. (Venus), var. PULLASTRA, Montagu. Log 62.]

T. AUREUS, Gmelin, sp. (Venus).

Log 35.

[T. DECUSSATUS, Linné, sp. (Venus).

Station III.]

GOULDIA MINIMA, Montagu, sp. (Venus).
Logs 31, 33, 34.

DOSINIA EXOLETA, Linné, sp. (Venus).
Station VIII. Logs 12, [72].

D. LINCTA, Pulteney, sp. (Venus).

Stations [III.], VIII. Logs 3, 17, 18, 19, 22, 28, 34, 35, [42], 50, 62, [72].

VENUS CASINA, Linné.

Station VIII. Logs 18, 34, 42, 59, [62, 72].

V. VERRUCOSA, Linné.

[Station VIII.] Logs 21, 28.

V. FASCIATA, Da Costa, sp. (Pectunculus).

Station VIII. Logs 30, 34, [72].

V. GALLINA, Linné.

Station VIII. Logs 3, 17, 19, 22, 28, [42], 63.

Var. LAMINOSA, Montagu.

Log 28.

TIMOCLEA OVATA, Pennant, sp. (Venus).

[Station I.] Logs 6, 12, 17, 19, 22, 23, 24, 28, 30, 31, 33, 34, 35, [39], 40, 41, 50, 62, [72, 73], C.

LUCINOPSIS UNDATA, Pennant, sp. (Venus).

Station VIII. Logs 11, 21, 42, 55.

AXINUS FLEXUOSus, Montagu, sp. (Tellina).

[Station VII.] Logs 9, 11, 12, 19, 20, 21, 24, 26, 28, 35, 42, 50, 55, 62.

A. FERRUGINOSUs, Forbes, sp. (Kellia).

Logs 17, 42, 67.

A. INCRASSATUS, Jeffreys.

Log 67.

The rediscovery of this rare species is a matter of considerable interest.

DIPLODONTA ROTUNDATA, Montagu, sp. (Tellina).

Station VIII.

[DONAX VITTATUS, Da Costa, sp. (Cuneus).
Station VIII. Log 35.]

D. VARIEGATUS, Gmelin, sp. (Tellina) = politus, Poli.
Station VIII.

GARI FERROËNSIS, Chemnitz, sp. (Tellina).

Station VII.]. Logs 9, 12, 25, [40], 50, 62.

G. TELLINELLA, Lamarck, sp. (Psammobia).

Station VIII. Logs 6, 21, 22, 35, 62, E.

SOLENOCURTUS CANDIDUS, Renier, sp. (Solen).

Station VIII.

S. ANTIQUATUS, Pulteney, sp. (Solen).

Logs 30, [50], 62.

SOLEN PELLUCIDUS, Pennant.

Stations VI. [VII., VIII.]. [Logs 42, 55, 62, 73.]

[S. ENSIS, Linné.

Station VIII. Log 40.]

SEMELE CASTANEA, Montagu, sp. (Donax).
Station VIII.

[MACTRA SOLIDA, Linné.

Station VIII. Log 35.]

M. ELLIPTICA, Brown.

72.

Station VIII. Logs 3, 6, 12, 19, 22, 33, 34, 35, [40], 63,

M. SUBTRUNCATA, Da Costa, sp. (Trigonella).

Log 35.

LUTRARIA ELLIPTICA, Lamarck.

Station VIII. [Logs 35, 70.]

MYA TRUNCATA, Linné.

[Station VIII.] Logs 35, 63.

SPHENIA BINGHAMI, Turton.

Logs 35, 40, 62, 63. Valves only.

CORBULA GIBRA, Olivi, sp. (Tellina).

Logs 3, 9, 11, 12, 16, 17, 18, 19, 20, 21, 22, 23, 24, 26, 28, 30, 31, 33, 34, 35, 40, 42, 50, 55, 59, [62], 63, 70, [72], 73. SAXICAVELLA PLICATA, Montagu, sp. (Mytilus).

Logs 11, 26, 28, [70].

SAXICAVA RUGOSA, Linné, sp. (Mytilus).

Logs 3, 9, 11, 12, 15, 19, 21, 22, 24, 28, 30, 31, 33, 34, 35, 40, 42, 55, 62, 63, [70], C, E.

Var. ARTICA, Forbes and Hanley.

[Station XIII.]. Logs 6, 12, 23, 24, 25, 28, [31, 52, 53, 70, 73].

LUCINA BOREALIS, Linné, sp. (Venus).

Stations [IV.], VIII. Logs 3, 9, 11, 12, 28, 35, [52], 55, 59, C.

L. SPINIFERA, Montagu, sp. (Venus).

Stations [IV.], VI., VII., [VIII.]. Logs 3, 12, 17, 21, 28, 30, 33, [73].

TELLINA CRASSA, Gmelin, sp. (Venus).

Station VIII. Logs 6, 11, 22, 30, 33.

T. TENUIS, Da Costa.

Log 22.

T. FABULA, Gronovius.
Logs 35, [70].

T. SQUALIDA, Pulteney.
Station VIII.

T. PUSILLA, Philippi.

Station VI. Logs 6, 9, 11, 22, 24, 28, 30, 33, 42, C, E.

SYNDOSMYA PRISMATICA, Montagu, sp. (Ligula).

Stations [II.], VI. Logs 22, 23, 33, 42, [73].

S. NITIDA, Müller, sp. (Mya).

67.

[Stations II., VI., VIII.] Logs 12, 17, 22, 28, 30, [55],

PANDORA INÆQUIVALVIS, Linné, sp. (Tellina), Var. PINNA, Montagu. [Station II.] Logs 17, 20, [44, 72].

LYONSIA NORVEGICA, Chemnitz, sp. (Mya).

Logs 17, 34, [56], 63.

THRACIA PAPYRACEA, Poli, sp. (Tellina).

Station VIII. Logs 9, 22, 33, 40, 62. COCHLODESMA PRÆTENUE, Pulteney, sp. (Mya). Station VIII. Log 22.

R.I.A. PROC., SER. III., VOL. v.

D