38 Moll 
VIII. Mollusca. 
[1913] 
Move und Teichmuschel ; Loos, 332. 
Helix cantiana eaten by birds ; J. 
Conch. Leeds 14 p. 10. 
Economics. 
Degree of fecundity according to 
age in Ostrea edulis ; Dantan, 130. 
Relation of parasites of Scoter Duck 
to pearl-inducing Trematode in Mytilus 
edulis ; Jameson & Nicoll, 261. 
Contamination of mussol beds in 
Lancs, and N. Wales ; Johnstone, 269. 
Notes on certain edible species on 
the French Mediterranean Coast ; 
Joubin, 271. 
Pcrlen. Altes und Neues uber ihre 
»Struktur, Herkunft und Verwertung ; 
Korschelt, 302. 
Mytiliciilture en France ; Marchand, 
340 & 341. 
Economic value of certain Tas- 
manian spp. ; May, 358. 
Molluschicultura nel Mare piccolo 
di Taranto ; Mazzarelli, 361. 
Ceylon pearl oyster fisheries ; Legge, 
321 & Pearson, 401. 
Report of the Window-Pane Oyster 
investigations, 1912 ; Pearson, 402. 
Pesca e commercio di Perle e Ma- 
dreperla in Eritrea ; Salvadei, 482. 
Review of work dono on Ceylon 
Pearl banks since 1902 ; Southwell, 
524 & Jameson, 260. 
Olandina imported into France to 
exterminate certain noxious molluscs ; 
Nautilus Boston Mass. 26 p. 132. 
VARIATION AND iETIOLOGY. 
2223 
General Treatises. 
Chromosomen der Tachea {Helix) 
hortensis, T. austriaca und der soge- 
nannten einseitigen Bastarde T. horten- 
sis x T. austriaca ; Baltzer, 21. 
Selection of forms of H. nemoralis 
by adverse conditions ; Boycott, 65. 
Polymorphism in U nio tumidus, 
Phil. ; Cardot, 76. 
Polygyra mobiliana , banded ; Clapp, 
92. 
Occ. of reversed Succinea ovalis in 
Massachusetts ; Clapp, 95. 
Palaontologische Betraelitungen. (1. 
tjber Cephalopoden) ; Deecke, 140. 
Gespaltener Arm eines Octopus vul- 
garis ; Hanko, 215a. 
Planorbis multiformis, Bronn, 
variation of ; Hickling, 230. 
Beitrage zur Stammesgeschichto der 
Austern ; Jaworski, 263. 
Untersucliungen am Genitalapparat 
von Helix nemoralis, hortensis und 
ciner weitoren Reihe von Lang go- 
ziichtetcr Bastarde der beiden Arten ; 
Kleiner, 290 & 291. 
Marginella zonata, occ. of sinistral 
specimen ; Lucas, 335. 
Monstrous form of Helix aspersa 
leaving its shell ; Masefield, 348. 
Hyalinia helvetica (Blum.), albino, 
occ. of ; Oldham, 391. 
Plastizitat der Najadacen Bohmens ; 
Petrbok, 407. 
Arianta arbustorum L. f, lutescens, 
Dum. et Mort. ; Pfeifer, 409. 
Liguus, variation and zoogeography, 
Florida ; Pilsbry, 418. 
Gegen Steinmann’s Geologische 
Grundlagen der Abstammungslehre ; 
Pompeckj, 433. 
Limax arborum, albinism in ; Roe- 
buck, 469. 
Variation in muscle scar of Ancylus ; 
Standen, 530. 
Malformation of keel-line in Limax 
cinereo-niger ; J. Conch. Leeds 14 
p. 102. 
Helicella itala, L. m. sinistrorsum 
occ. of ; J. Conch. Leeds 14 p. 102. 
Teratology, Phylogeny and 
Relationship. 
Abnormality in Planorbis corneus, 
occ. of ; Boettger, 45. 
Essai sur revolution des C6rithides 
dans le Mesonummulitique du bassin 
de Paris ; Boussac, 63. 
Description d’une monstruosite de 
Mytilus galloprovincialis ; Chatelet, 
85. 
Individualite de la faune d’Ammo- 
nites des couches & Peltoceras athleta; 
Douvill§, 150. 
