44 Moll. 
VIII. Mollusca. 
[1911] 
Crepidula fornicata, influence of on 
oyster-beds; Murie, 451. 
The Oyster, enemies of ; Murie, 451 . 
The possibility of combatting the 
noxious animals in the fishery, especially 
the snails of the Limfjord. (Danish) ; 
Petersen, 503. 
Wie aus Wiirmern Perlen werden; 
Pintner, 531. 
Formation of pearls in Margaritana 
margaritifera ; Rubbel, 565. 
Tho fishery resources of the Philippine 
islands. Part 3, Pearls and pearl 
fisheries ; Seale, 583. 
VARIATION AND ETIOLOGY. 
2223 
General Treatises. 
Siphonaria algesirae, Quoy, modifica- 
tion of shell of, due to locality ; Cooke, 
139. 
A study of the vital conditions 
determining the distribution and evolu- 
tion of snails in Tahiti ; Crampton, 
148. 
British Nudibranchiata variation of; 
Eliot in Alder & Hancock, 199. 
Beitrage zur Molluskenfauna von 
Magdeburg. Nebst variationsstatisti- 
schen Untersuchungen fiber einige 
Arten ; Honigmann, 322. 
Fortgesotzte Vererbungsstudien. [Al- 
binismus bei Schnocken. Hautfarbo 
dor Mulatten. Falsche Bastarde v. 
Tachea- Arten] ; Lang, 397. 
Die grosste Muschel Norwegens ; 
WoUebsek, 719. 
Teratology, Phylogeny and 
Relationship. 
Variation and abnormalities among 
Lgmnaeidae; Baker, 19. 
Mediterranean, scalariform, sinistra!, 
carinate and other monstrous forms of 
Conus mediterraneus Hwass, Mar- 
ginella clandestina Brocclii, Amycla 
corniculum Olivi, Columbella rustica 
Lin., ( Mitrella ) scripta Lin., Murex 
trunculus Lin. and Aporrhais pespeli- 
cani Lin. ; Dautzenberg, 168. 
Helix ( Caracollus ), ( Camaena ), Acha- 
tina, various monstrous forms of ; 
Dautzenberg, 169, 
Upper Congo, Achatina schweinfurthi, 
variation of ; Dupius, 193. 
British Nudibranchiata, affinities and 
relationships of ; Eliot in Alder & 
Hancock, 199. 
Rapport entre les cloisons d 'Oppelia 
subradiata Sow. et celles de quolques 
Oxgnoticeras liasiques ; Favre, 202. 
Helix aspersa m. sinistrorsum, occ. of; 
Gyngell, 279. 
Solenogastres, phylogeny of ; Heath, 
299. 
Buccinum undatum, variation in 
radulae of ; Irving, 336. 
Claus ilia bidentata with a double 
aperture; Jackson, 342. 
Relationship and phylogeny amongst 
British Uniones ; March, 415. 
Variation in certain Upper Tertiary 
(Isd. of Cos), spp. ; Newton, 461. 
Phylogeny of certain gastropods ; 
Pelseneer, 500. 
Anpassung an ungfinstige Verhalt- 
nisse ; Pfeff er, 505. 
Une anomalie de l’appareil genital 
hermaphrodite de V Helix aspersa ; 
Quintaret, 541. 
Ueber einen eigentfimlichen Schalen- 
defekt eines Thaumastus ; Simroth, 
599. 
Conus beckeri sp. n. with abnormal 
spire ; Sowerby, 623. 
Tritonia hombergii , white var. of ; 
Storrow, 646. 
Cgpraea neglecta Sow. monstr. 
Rouxi ; VayssiSre, 683. 
Nassa reticulata, monstrous specimen 
of ; Vayssiere, 682. 
Limncea stagnalis Lin. ; Vignal, 686. 
Polggyra alboldbris in Michigan, 
variation ; Walker, 696. 
Variations in Urosalpinx ; Walter, 
697. 
Thais ( Purpura ) variation of ; 
Williamson, 715. 
M. Cossmann on the phylogeny of 
Cerithium ; Wood, 721. 
Phylogeny of certain Cerithiidae ; 
Wood, 722. 
Malformations of large tentacle of 
Helix pomatia ; Yung, 727, 
