32 Moll. 
VIII. Mollusca. [1922] 
Enemies, Defence and Protection. — 
Dodgson, 186 ; Fischer, 211 ; 
Howard & Berry, 301 ; Lawson, 
364 & 365; Musham, 425; Wood- 
RUFFE-PEACOCK & WOODRUFFE- 
Peacock, 653. 
Feeding Habits. — Arey & Crozier, 
23; Bartsch, 45; Dodgson, 183; 
Evans 202 ; Fischer 211 ; Kinloch, 
340 ; Krause, 351 ; Lebour, 366 ; 
Orton, 433. 
Breeding Habits. — Annandale, 16; 
Astre, 28; Edmondson, 199; 
Gatenby, 233 ; Grave, 257 ; Khalil, 
335 ; Luther, 377 ; Monticelli, 
414; O’Donogiiue & O’Donogiiue, 
443 ; Orton, 451 & 454 ; Phtle, 465 ; 
Poulton, 488 ; Hobson, 523 ; Spauck, 
561. 
Boring Habits. — Bartsch, 45 ; 
Fischer, 211 ; Kornhauser, 348 ; 
Rowan, 529. 
Special Habits. — Arey & Crozier, 
23. 
Behaviour under Certain Conditions. — 
Arey, 22. 
Colouration. — Reudemann, 513a ; 
Schmidt, 542; Weber, 636. 
Luminosity. — Mortara, 421a. 
Habitat. — Alkins, 4 ; Allen, 8 ; 
Annandale, 9, 11 & 16 ; Annandale 
& others, 18; Ashby, 26; Baker, 
41 & 42 ; Boycott, 88 ; Cartwright, 
103 ; Demel, 175 ; Schmidt, 542. 
Adaptation to surroundings. — 
Huntsman, 306a. 
Acclimatisation, Migration, etc. — 
Dutertre, 195 ; Germain, 239 ; 
Jarrett, 316; Riel, 518; Verco, 
616. 
Hibernation and /Estivation. — 
AnnaNdale, 16 ; Demel, 175. 
Autotomy and Regeneration. — 
Edmondson, 199 ; Lange, 358. 
Environmental Effects. — Caziot, 
108; Dickerson, 176 ; Miller, 409. 
Instinct and Psychology, Tropisms. — 
Arey & Crozier, 23 ; Bierens de 
Haan, 63 ; Crozier, 156. 
Rate of Growth. — Grier, 267 ; 
Mossor, 422 ; Reudemann, 513a. 
Sexual Dimorphism. — Grier, 263 ; 
Reudemann, 513a. 
Parasitism, Commensalism, Parasites, 
etc. — Bethencourt, 60; Bethen- 
court & Borges, 61 ; Buxton & 
Krikorian, 98 ; Cawston, 104, 105 & 
106; Debaisieux, 169; Franca, 
212 ; Fran 9 a & Almeida de, 213 ; 
Hornell 299; Howard & Barry, 
301 ; Johnstone, 325 & 326 ; Khalil, 
335; Levi, 369; Magath, 378; 
Mendoza-Guazon, 407 ; Moltoni, 
413 ; Pierantoni, 471 ; Sewell, 
550 ; Taylor, 592 ; Utterback, 
609 ; .Van der Sleen, 612 ; Yakow- 
lev, 660. 
Evolution.-— Dollo, 190; Taylor, 
589. 
VARIATION AND /ETIOLOGY. 
Teratology, Phylogeny and Relation- 
ship. — Boycott, 86 ; Caziot, 108 ; 
Ciria, 119 ; Coker & others, 127 ; 
Dollo, 190 ; Geiser, 235 ; Laville, 
363 ; Morse, 420 ; Nicolesco, 432 ; 
Nierstraiz, 433; Peile, 466; 
Petitclero, 468 ; Stieler, 583 ; 
Van der Sleen, 612. 
Evolution. — Annandale 10 ; 
Dickerson, 177; Douville, 191 & 
192; Trueman, 602 & 604; Wenz, 
644. 
Variation in Form.— Alkins, 5 ; 
Alkins & Cook, 6 ; Alkins & 
Harwood, 7 ; Annandale, 16 ; 
Miller, 409 ; Nicolesco, 432 ; 
Snyder & Crozier, 560 ; Steusloff, 
581. 
Variation in Colour. — Annandale, 
16 ; Cooke, 136 ; Crozier, 157 ; 
Grier, 264 & 265 ; Miller, 409 ; 
O’Donogiiue, 440. 
DISTRIBUTION. 
(a) Recent. 
(a) Marine. 
Arctic Ocean. — Stephenson, 575. 
North Atlantic Ocean, Caribbean 
Sea and Gulf of Mexico. — Bartsch, 45 
& 46 ; Belcher, 50 & 51 ; Bonnevie, 
75 ; Burnley, 94 ; Byne, 99 ; 
Chadwick, 110 ; Christensen, 117 ; 
Ciria, 119 ; Grimpe, 270, 271 & 272 ; 
