BIOLOGY. 
Moll. 43 
Noise made by crawling Gastropod ; Jourdain, C.R. Soc. Biol, liii, p. 406. 
—Mucus-threads of slugs ; Kew (288).—Pairing of Limax maximus ; 
Kew (289).—Mucus threads ; Krause (308).—Notes on colouration of 
animals ; McIntosh (367).—Experiments with species of Littorina seem 
to show that light to a great extent influences the choice of habitat; 
Mitsukuri (369).—Relation to temperature ; Pelseneer (417).— Limncea 
peregra and frost; Petch, Naturalist 1901, p. 76.—Spawning of Mytilus 
edulis ; Scott (507).— Clausilia mimicked by a Microlepidopteron ; Sim- 
roth (527).—Carnivorous habit in Limax maximus ; Swanton, Natural. J. 
x, p. 156. — Trematodes parasitic in Relicidce; Vaney & Conte (612).— 
Entocolax schiemenzii, n. sp., parasitic in Chirodota pisanii ; Voigt (626). 
—Locomotion in Fulgur ; Wallace (633).—Mode of crawling in Potamides 
californica ; Williamson (660). 
5 Variation and Teratology. 
Variation in Carychium minimum and Tachea nemoralis ; Boycott, Sci. 
Gossip viii, p. 223.—On the variation in the form of Planorbis multiformis ; 
Hilgendorf (250).—Dichotomy in the arms of Cephalopods; Parona 
(409 & 410).—Six-valved Ischnochiton ; Stearns (554).—Natural selection 
in Clausilia laminata ; Weldon (636). 
6. Taxonomy (Phylogeny and Classification). 
General:—Classification of British marine Mollusca ; Chaster, etc. (91). 
—The phylogenetic relationship between Amphineura and Cephalopoda ; 
Kerr (287).—Origin and phylogeny of Mollusca ; Pelseneer (419). 
Cephalopoda :—Phylogeny and taxonomy of the Ceratitidce ; Philippi 
(426).—Phylogeny of Tmcegoceras ; Pompeckj (457).—Genealogy of Puzosia 
and Desmoceras ; Yabe (672). 
Gastropoda :—Classification of Fusidce , Turbinellidce , Chrysodomidce , 
Pyramimitridce, Strepturidce, Buccinidce , Nassidce , and Columbellidce ; 
Cossmann (123).—Phylogeny of Valenciennesia and Limncea ; Gorjanovic- 
Kramberger (205). — Phylogeny of the Opisthobranchs ; Guiart (226). — 
Phylogeny of the group of Planorbis multiformis ; Plate, Biol. Centrbl. 
xxi, pp. 161-172: Hilgendorf (250).—Polyphyletic origin of ‘slugs’ 
through climatic adaptation ; Simroth (529).—Phylogeny of agnathous 
Pulmonates ; Simroth (532). — Classification of Acmceidce\ Willcox (655). 
Pelecypoda:—Phylogeny; Borissiak (65).—Relationships of the ‘Pecti¬ 
nate’ Trigonice ; Hall (230).—Phylogeny of the Limidce ; Philippi (427). 
—Phylogeny and taxonomy of Aucella and related forms ; Pompeckj 
(458).—Evolution of the Hippuritidce ; Toucas (602). 
Amphineura :—Phylogeny of the Chitonidce ; Plate (453). 
7. Methods of Research, Bibliographies, Museums, &c. 
Collecting, preservation, etc.:—On the measurement of the spiral; 
Conant (118).—On the collecting and preservation of Mollusca ; Gravier 
(2L3).—Differentiating calcite and arragonite as occurring in the molluscan 
shell; Meigen, Centrbl. Mineral. 1901, pp. 577 & 578.—On collecting 
material with a view to study of ‘species’; Pace, Nature lxiii, pp. 490 & 
491. 
Type-specimens :—List of types and figured specimens of fossils in 
American Museum of Natural History continued ; Whitfield & Hovey 
(649). 
