LIST OP PUBLICATIONS. 
Moll 13 
Jourdain, M. Des Communications de la Cavit6 du Corps et de 
l’Appareil Circulatoire des Mollusques avec l*Ext6rieur. C.R. Ass. 
Fr. Sci. 1889, ii, pp. 589 & 590. 
JOssen, E. Beitrage zur Kenntniss der Klaus-Schichten in den 
Nordalpen. JB. geol, Reichsanst. xl, p. 381, &c., 2 pis. 
Two neW species of Perisphinctes. 
Kew, H. W. The Faculty of Homing in Gastropods, Naturalist, 
1890, pp. 307-318. 
Keyes, CUarles R. (1) Review of the Progress of American Inverte- 
brate Palaeontology for the year 1889. Am, Nat. 1890, pp. 131-138. 
. (2) Generic Relations of Platyceras and CapuluS. Am. Geol. 
1890, vi, pp. 6-9. 
A list of species formerly belohging to Platyceras should be referred to 
CapuluH. 
. (3) Synopsis of American Carbonic CalyptrcUidce. F. Ac. Philad. 
1890, pp. 150-181, pi. ii. 
. (4) Certain Forms of Straparotlus from South-eastern Iowa. 
Am. Geol. 1890, v, pp. 193-197, 1 ph 
. (5) The Naticoid Genus Strophostylus. Am. Nat. xxiv, pp. 
1111-1117, pi. xxxii. 
Kingsley, J. S. Record of American Zoology. Op. cit. 1890 
pp. 351 & 357. 
Mollusca , pp. 354 & 355. 
Klika, B, Mekkysi okoli nOvobydzobskeno. SB. Bohm. Ges. 1890, 
i, pp. 87-99. 
Apparently a new locality for laihPshells. CtfeCh only. 
Kobelt, W. Eine neue Cerithidea. Nachr. mal. Ges. 1890, p. 60. 
Cerithidea rollei , n. sp., from China. 
Kowalevsky, A. O., & Marion, A. F. Contributions a l’Histoire des 
Solenogastres ou Aplacophores. Ann. Mus. Marseille, iii, pp. 1-76, 
pis. i-vii. 
Lepidomenidi n. g. Several new species of Proneomehia . 
Lankester, E. Ray. Mollusca. Reprint from the Encyd. Brit., Zool. 
articles. London (A. & C. Black) : 1891. 
BetEllier, A. (1) Recherches sUr la Fourpre produite pat le Purpura 
lapillus. Arch. Z. exper. viii, pp. 361-408, pi. xxi. 
Purple is produced by a band of epithelium cells near the edge of the 
mantle. At the breeding season vast quantities of PuVpUra gather 
together ; probably they are brought together by Volatile products of 
strong odour liberated when the purple is formed. 
— — . (2) Recherches sur la Pourpre produite par le Purpura lapillus. 
C.R. cx, pp. 307-309. 
