LIST OF ILLUSTRATIONS 



HALF-VOL. IV 



COLOURED PLATES 

 THE CORAL SNAKE (Elaps Corallinus). 



A Study by A. Fairfax Muckley Frontispiece. 



PROTECTIVE ANIMAL COLORATION. 



A Study by A. Fairfax Muckley 



HEAD-FOOTED MOLLUSCS (Cephalopoda) (after Merculiano and Jatta). 



A Study by A. Fairfax Muckley 



312 



392 



BLACK-AND-WHITE ILLUSTRATIONS 



Page 



Group of Serpulae 258 



Dissection of Front End of an Earth-Worm 259 

 Dissection of Siphon-Worm (Sipunculus] 



(after Keferstein) 260 



Moss-Polypes (after Kraepelin and Boas) - 261 

 Crown Rotifer (Stephanoceros] - - - 262 

 Vertical Section of Simple Sponge - - 265 

 A Proteus Animalcule (Amoeba) surround- 

 ing a slender Alga (after Rhumbler) - 269 

 Berry Animalcule (Hczmatococcus pluvialis) 



in resting and motile stages - - - 273 

 Pallas's Sand- Grouse (Syrrhaptes para- 



doxits] (from Brehm) .... 280 

 Eggs of Ringed Plover (sEgialitis hiati- 



cula} (from a photograph by R. A. L. 



Van Someren) 286 



Crouching Young of Peewit ( Vanellus cris- 



talus) (from a photograph by R. A. L. 



Van Someren) 286 



A Beetle (Lithinus nigrocristatus) which 



resembles Lichen 287 



Upper Side of a Xenophorus Shell (from 



Chun) 288 



Ptarmigan (Lagopus mutus), in winter 



plumage 290 



Australian Sea- Horse (Phyllopteryx eques} 296 

 Caterpillars of Brimstone Moth (Rumia 



cratagata) in protective attitudes (after 



Poulton) 297 



Hinder End of Caterpillar of Brimstone 



Moth (after Poulton) .... 297 



Page 



Indian Leaf Butterfly (Kallima inachis] - 298 



American Skunk {Mephitis siiffbcans) - 302 



Rattle of Rattlesnake . - - . 304 



Horned Toad ( Ceratophrys ornata] - - 305 

 A Friar -Bird (Philemon Timorlaoensis) 



mimicked by an Oriole ( Oriolus decipiens} 310 

 Caterpillars of the Lobster Moth (Stan- 



ropusfagi) - - - - . 314 



Heads of Nocturnal Animals - - - 319 

 Diagram of varieties of Reptilian Armour, 



as seen in section (after Boas) - - 333 

 Nile Crocodile. Two scutes, covered by 



horny epidermal plates - 333 

 Carapace and Plastron of a Tortoise (after 



Boulenger) 334 



Method of Growth in Gastropod Shells - 335 



Growth of Bivalve Shell as seen in section 335 



A spiny Sea- Snail (Murex) - - - 336 



Opercula of various Gastropods - - 336 



Caddis- Worm Tubes of various kinds - 337 



The Northern Stone-Crab (Lithodes maia] 338 

 A Sea-Urchin (Echinus lividus\ showing 



protective covering of spines - - 340 

 Part of Sea-Urchin Test, showing knobs 



for attachment of- spines - - - 340 

 A species of South American Fox (Cants 



azarce] 343 



THE FALLOW DEER ( Cervtis dama) 350 



Horns of Gazelles 353 



Poisonous Mexican Lizard (Heloderma 



horridum} 355 



