THE STRUCTURE AND MODE OF LIFE OF THE PYRAMIDELLIDAE, PARASITIC OPISTHOBRANCHS

[11] GRAHAM A., 1949, TRANS ROY SOC EDINBURGH, V61, P737

[12] Graham A., 1932, Transactions of the Royal Society of Edinburgh, V57, P287

[13] Graham A, 1939, P ZOOL SOC LOND B-SY, V109, P75

[14] JEFFREYS J. G, 1867, BRIT CONCHOLOGY, V4

[15] Koehler R., 1908, Bul Inst ocean Monaco, V118

[16] LEBOUR MARIE V., 1932, JOUR MARINE BIOL ASSOC UNIT KINGDOM, V18, P117

[17] Marshall JT., 1900, J CONCHOL, V9, P284

[18] MEDCOF JC, 1948, J FISH RES BOARD CAN, V7

[19] Pantin CFA, 1942, J EXP BIOL, V19, P294

[20] PELSENEER P, 1899, MEM ACAD R BELG, V57, P1

[11] GRAHAM A., 1949, TRANS ROY SOC EDINBURGH, V61, P737

[12] Graham A., 1932, Transactions of the Royal Society of Edinburgh, V57, P287

[13] Graham A, 1939, P ZOOL SOC LOND B-SY, V109, P75

[14] JEFFREYS J. G, 1867, BRIT CONCHOLOGY, V4

[15] Koehler R., 1908, Bul Inst ocean Monaco, V118

[16] LEBOUR MARIE V., 1932, JOUR MARINE BIOL ASSOC UNIT KINGDOM, V18, P117

[17] Marshall JT., 1900, J CONCHOL, V9, P284

[18] MEDCOF JC, 1948, J FISH RES BOARD CAN, V7

[19] Pantin CFA, 1942, J EXP BIOL, V19, P294

[20] PELSENEER P, 1899, MEM ACAD R BELG, V57, P1