296 DISCOVERY REPORTS 



Massy, A. L., 1909. The Pteropoda and Heteropoda of the coasts of Ireland. Fisheries, Ireland, Sci. Invest., 

 1907, II. 



1917- The Gymnosomatous Pteropoda of the coasts of Ireland. Proc. Roy. Dublin Soc, Vol. xv (N.S.), 



No. 22. 



1920. Mollusca, Part III — Eupteropoda {Pteropoda Thecosomata) andPterota {Pteropoda Gymnosomata). 



British Antarctic ('Terra Nova') Exped. 

 Meisenheimer, J., 1905. Pteropoda. Wiss. Ergebn. deutsch. Tiefsee-Exped.'Valdivia', 1898-9. Bd. ix, Lief, i, 

 Jena. 



1905 a. Die arktischen Pteropoden. Fauna Arctica, Bd. iv. Lief. 2. 



1906. Deutsche Siidpolar-Expedition, 1901-3, Bd. IX, Heft 2, 1906. Berlin. 



Orbigny, a. d', 1835-47. Voyage dans I'Amerique meridionale execute dans les annees 1826-33. 

 Pelseneer, p., 1887. Report on the Pteropoda collected by H.M.S. 'Challenger' during the years 1873-6. Pt. i. 



The Gymnosomata. Vol. xix. 



1888. Report on the Pteropoda collected by H.M.S. 'Challenger' durir^ the years i^jT,-^. Pts.LXvand 



LXVI. 



Pfeffer, G., 1880. Die Pteropoden des Hamburger Museums. Abhand. naturwiss. Ver. Hamb., Bd. vii, 



1879-80. 

 Pruvot-Fol, a., 1924. £tude de quelques Gymnosomes mediterraneens des peches de H'Orvet' en 1921 et 1922. 



Arch. Zool. Exper., T. lxii, Fasc. 6. 



1926. Mollusques Pteropodes gymnosomes provenant des campagnes du Prince Albert I" de Monaco, 



Fasc. 70. 

 Sars, G. O., 1878. Mollusca Regionis Arcticae Norvegiae. Christiania. 



ScHLiEMENZ, P., 1906. Die Pteropoden der Plankton-Expedition. Ergebnisse der Plankton-Exped., Bd. xi, F, b. 

 Sykes, E. R., 1905. Mollusca procured during the 'Porcupine' Expeditions, 1869-70. Proc. Mai. Soc, Vol. vi, 



Pt. 6. 

 Tesch, J. J., 1904. The Thecosomata and Gymnosomata of the 'Siboga' Expedition. Siboga Exp. Monogr. 52, 



Leiden. 

 Vayssiere, M. a., 1915. Sur les Eupteropodes recueillis pendant les campagnes scientifiques dirigees par S.A.S. 



le Prince de Monaco. Comptes rendus, Acad. Sci. Paris, T. 161, p. 606. 



