LIST OF PUBLICATIONS. Moll . 3 
Bellardi, L. Molluschi dei Terreni Terziarii del Piemonte e della 
Liguria. Mem. Acc, Tor. xl, pp. 295-361, 2 pis. 
Part vi, Volutidce , Marginellidce , Colunibellidce, by Sacco. 
Bergh, R. (1) Die Nudibranchien des Sunda-Meeres. Reisen in 
Archipel der Philippinen von Dr. C. Semper. Th. n. Wissenschaft- 
liche Resultate, Bd. II. Malacologische Untersuchungen von R.Bergh. 
Pp. 873-991, & lxxxv-lxxxix. 
Phialodoris, n. g. of Dorididce , and many new species. 
. (2) Report on the results of Dredging, under the supervision of 
A. Agassiz, in the Gulf of Mexico (1887 & 1888), and in the 
Caribbean Sea (1879 & 1880) by the U.S. Survey Steamer ‘ Blake,’ 
Lieut.-Commander C. D. Sigsbee, U.S.N., and Commander J. R. 
Bartlett, U.S.N., commanding. Bull. Mus. C. Z. xix, pp, 155-181, 
pis. i-iii. 
With several new species. 
Bernard, F. (1) Recherches sur les Organes Palleaux des Gasteropodes 
Prosobranches. Ann. Sci. Nat. ix, pp. 89-396, pis, v-xv. 
Organ of Spengel, pp. 139-263. In the Bullidce, Aplysiidos, and 
the Diotocardce there is a branchial ganglion innervating the gill and 
a portion of the mantle more and more feeble as one rises in the scale 
of the Prosobranchiata. In all the types save the Fissurellidce it sends 
fibres to the epithelium. In the Neritidce , Tecturidce, and Valvatidce 
there is no longer a branchial ganglion well differentiated, and in 
the Monotocardidce there is no trace of it. Structure of the gill, 
pp. 265-296 ; mucous glands, pp. 296-340 ; general conclusions, 
pp. 340-396. 
(2) Recherches sur Valvata piscinalis. Bull. Sci. Fr. Belg. xxii, 
pp. 252-361, pis. xii-xx. 
An elaborate monograph on the anatomy and development. 
Bigot, A. Notes sur quelques Pelecypodes des Gres Siluriens de 
l’ouest de la France, Bull. Soc, Geol, xvii, pp. 790-801, pis. 
xxii & xxiii. 
With several new species. 
Binney, W. G. A Third Supplement to the Fifth Volume of the 
Terrestrial Air-breathing Molluscs of the United States and the 
adjacent territories. Bull. Mus. C. Z. xix, pp. 183-226, pis. i-xi, and 
many woodcuts. 
Bittner, A. Eine Triadische Conularia. Verh. geol. Reichsanst. 1890, 
p. 1777, with woodcut, 
BlanCkEniiorn, M. (1) Ptoropodon-Resto aus dor oboren Kreido Nord- 
Syriens uud aus dem Ilessichen Oligociin. Z. geol. Gos. xli, 
pp. 593-602, pi. xxii. 
Several new species. 
