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1891. Knipowitsch, X. Zur Entwicklungsgeschichte von CUonc limacina. Biol. Ccntralbb. XI. p. 300—303, 7 figs. Abstr. tu J. 

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1891. Pictet, C. Recherches sur la spermatogenese chez quelques Invertebres de la Mediterranee. M. T. z. Stat. Neap. X, p. 1 15 — 123 

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1892. Brazier, J. Catalogue of the Marine Shells of .Australia and Tasmania. Pt. II. Pteropoda. Sydney. 



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1893. Pelseneer, P. L'opercule des Heteropodes. Bull. Soc. mal. Belg. 1892, p. 35. 



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1 893. S we rb 3' , G. B. Notes on the Genus Carinaria. with an enumeration of the species and the description of a new form (C elala) 

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1894. Knower, H., Mc. E. Pteropods (Cavolina longirostris) with two separate sexual openings. J. Hopkins LIniv. Circ. XIII, p. 61 

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1896. Warren, A. Spirialis rctrovcriis in Killala Bay. Irish Nat. Vol. 5, No. 9. Sept. p. 248. 



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