148 



EEPORT OF NATIONAL MUSEUM, 1912. 



MOLLUSKS. 



Baker, Feank Collins. The Lym- 

 n^idse of North and Middle America, 

 recent and fossil. 



Chicago Acad. 8ci., Sp. 

 Pub. No. 3, Feb. 15, 

 1911, pp. i-xvi, 1- 

 5.39, pis. 1-58, figs. 

 1-51. 

 This is a monographic study 

 of the North American Lym- 

 nseidse, embracing a series of 

 chapters covering the following 

 topics : General morphology of 

 the Lymna?as ; ecology of the 

 Lymnteas ; distribution in space ; 

 distribution in time ; historical 

 sketch of previous monographs ; 

 a new classification of the Lym- 

 nasas ; nomenclature ; instruc- 

 tions for collecting and prepar- 

 ing Lmynfeas ; systematic dis- 

 cussion of species. 



One species, Galha neopalus- 

 tris, and 4 subspecies, Pleuro- 

 Umncea tenuicosta tvhiteavesi, 

 O. buUmoidcs cassi, G. pahistris 

 alpenensis, and O. catascopium 

 adamsi, are described as new. 



Balch, Francis N. On a new Labra- 

 dorean species of Onchidiopsis, a 

 genus of mollusks new to eastern 

 North America, with remarks on its 



relationships. 



Proo. 17, 8. Nat. Mus., 



38, No. 1761, Oct. 



6, 1910, pp. 469- 



484, pis. 21, 22. 



In this paper Onchidiopsis 



corys is described as new. This 



record also lists for the first 



time a representative of this 



genus for the east coast of 



America. 



Baetsch, Paul. Die Diesjilhrige Ex- 

 pedition des Vereinigten Staaten 

 Fischerei Dampfers " Albatross " 

 nach dem Golf von Californien. 



The Technologist, 16, 

 No. 6, June, 1911, 

 pp. 106, 107. 

 An abstract of a lecture on 

 the above topic. 



Abstract of papers on mollusks 



published by Dr. Wm. H. Dall and 

 Paul Bartsch. 



J o u r n . Washington 

 Acad. Sci., 1, No. 3, 

 Aug. 19, 1911, pp. 

 95, 96. 



Bartsch, Paul. The west American 

 mollusks of the genus Nodulus. 



Proc. U. S. Nat. Mus., 



41, No. 1858, Aug. 



22, 1911, pp. 289- 



291, flgs. 1-4. 



A monograph of the west 



American members of the group 



in which N. kelseyi and kyaken- 



sis arc described as new. 



Abstract of papers on mollusks 



by Paul Bartsch. 



J o u r n . Washington 

 Acad. Sci., 1, No. 4, 

 Sept. 19, 1911, pp. 

 135, 136. 



Abstract of papers on mollusks 



by Paul Bartsch. 



./ u r n . Washington 

 Acad. Sci., 1, No. 5, 

 Oct. 4, 1911, p. 163. 



New marine mollusks from 



BernuuLi. 



Proc. U. S. Nat. Mus., 



41, No. 1861, Oct. 



12, 1911, pp. 303- 



306, pi. 28. 



In this paper the following 



species are described as new : 



Cerithiopsis hero, cynthia, and 



ionthu; also Trlphoris bermu- 



densis. 



• Die Meeresstromungen und ihr 



Einfluss auf die Verbreitung der 

 JIariuen Lebenswelt. 



The Technologist, 16, 

 No. 11. Nov., 1911, 

 pp. 165, 166. 

 An abstract of a lecture upon 

 the above topic. 



The recent and fossil mollusks 



of the genus Alvania from the west 

 coast of America. 



Proc. U. S. Nat. Mus., 

 41. No. 1863, Nov. 

 15, 1911, pp. 333- 

 362, pis. 29-32. 

 A monograph of the west 

 American members of this 

 genus, the following species be- 

 ing described as new : A. tra- 

 chi.sma, californica, pedroana, 

 montcrcyensis, profundicola, 

 hoodensis, galapagensis, nemo, 

 rosana, fossilis, illiuliukensis, 

 cosmia, halla, ima, lara, clarion- 

 ensis, almo, and oldroydw. 



