LIST OF ILLUSTRATIONS 



xv 



Page 

 Life-history of Ringed Gnat (Culex annu- 



latus) (from Vosseler) - - 403 



Larva of Mail-Shell (Chiton) (after Kowa- 



levsky) - 404 

 Diagrammatic Cross-section through a Bi- 

 valve Mollusc 405 



Veliger Larva (12 days old) of an Edible 



Mussel (Mytilus edulis) (after Wilson) - 406 

 Glochidium of Freshwater Mussel (Ano- 



donta) (after Goette) - 406 



Glochidia of Freshwater Mussel (Unto) 



(after Schierholtz) 407 



Edible Mussel (Mytilus edttlis) (after Moe- 



bius) - 408 



Shells of Saddle-Oyster (Anomia) (after 



Morse) 408 



Piddocks (P/iolas) 409 



Ship-Worms (Teredo navalis) (after Moe- 



bius) - - 410 



Date-Shells (Lithodomus)- - - - 411 

 Trochosphere of Tusk-Shell (Dentalium) 



(after Kowalevsky) .... 412 

 Egg-capsules of Purple-Shell (Purpura la- 



pillus) - - 412 



Spawn of Whelk (Buccinum un datum) - 413 

 Spawn of Natica ..... 413 

 Violet-Snail (lanthina) and Raft - - 413 

 Gastropod Larvae (after various authors) - 415 

 Purple-Shell (Purpura lapillus) - - 416 

 Limpet (Patella vulgata) leaving its Scar 



at Low Tide 417 



Spawn of Squid (Loligo) - 418 



Egg-capsules of Cuttle-Fish (Sepia) - - 418 

 Pilidium Larva (after Metschnikoff) - - 419 

 Larvse of Acorn-headed Worms (Balano- 



glossus) (after Bateson and Metschnikoff) 420 

 Adult and Tadpole Larva of Simple As- 



cidian - - - - - - -421 



Life-history of a Salp (after Grobben) - 422 

 Front End of Ammocoetes (after W. K. 



Parker) - - - 423 



Egg - capsules of Elasmobranchs (partly 



after Waite) 424 



Advanced Embryo of Dog- Fish (from 



Selenka) 424 



Floating Egg of Sea -Bass (Serranus 



atrarius) (after Wilson) - - - 425 

 Embryo of a Blenny (Blennius) (after 



Guitel) 425 



Male Sea- Horse (Hippocampus} - - 427 

 Sticklebacks (Gasterosteus) and Nest - 428 

 Larvae of Turbot (Rhombus maximus) (after 



M'Intosh) - 431 



Turbot (Rhombus maximus) - - - 432 

 Life-history of Salmon (Salmo salar) - 433 



Larval Eel (Leptocephalus brevirostris) (from 



Selenka) 434 



Page 

 Female Desmognathus fuscus with Eggs 



(after Wilder) - 435 



Egg-case of Brazilian Tree-Frog (Phyllo- 



medusa Jheringi) (after von Jhering) - 437 

 Nests of the Ferreiro (Hyla faber) (after 



Goeldi) - - 438 



Development of West Indian Tree-Frog 



(Hy lodes Martinicensis) (after Peters) - 439 

 Male Alytes, carrying the Eggs - - 440 

 Male of Chilian Toad (Rhinoderma Dar- 



wini) (after Howes) .... 441 

 Female of Surinam Toad (Pipa Americana) 



carrying Young 442 



Development of a Csecilian (Ichthyophis 



glutinosa) (after Sarasin) - - - 443 

 Egg-tooth of Embryo Lizard (after Wieders- 



heim) 446 



GANNETS OR SOLAN GEESE (Sula Bas- 



sana) (from photos by R. A. L. van 



Someren) ------ 448 



Mound of a Megapode ( Megapodius tumulus) 



(after Gould) ----- 452 

 Eggs of Tern (Sterna fluviatilis) (photo by 



R. A. L. van Someren) . - . 453 



Nest of a Woodpecker, in section - - 454 

 Young Kittiwake (Rissa tridactyla) (photo 



by R. A. L. van Someren) - - - 455 

 Nest of a Skylark (Alauda arvensis) (from 



R. and C. Kearton) - ... 455 

 Nest of Coot (Fulica atra) (photo by R. A. 



L. van Someren) 456 



White Swan (Cygnus olor) and Nest (photo 



by R. A. L. van Someren) - - - 456 

 Nest of Grey Wagtail (Motacilla melanope) 



(photo by R. A. L. van Someren) - - 457 

 Nest of Common Thrush ( Turdus musicus) 



(photo by R. A. L. van Someren) - - 457 

 Nest of Wood- Pigeon ( Columba palumbus) 



(photo by R. A. L. van Someren) - - 458 

 Nest of Great Reed Warbler (Acrocephalus 



arundinaceus) - ' - - - - 458 

 Penduline Tit (^Egithalus pendulinus) and 



Nest - 459 



Nest and Young of Tailor-Bird (Orthotomus 



sutorius) 460 



Brooding Flamingo (Phcenicopterus roseus) 461 

 Nest of an Oven-Bird (Furnarius) - - 461 

 Edible Nests of Collocalia - - - 462 

 Nest of Sociable Grosbeak (Philhetarus 



socius) 463 



Female Dotterel (Ettdromias morinellus) - 465 

 Wild Duck defending her Brood against a 



Brown Rat 467 



Skylark (Alattda arvensis) at her Nest 



(from R. and C. Kearton) - - - 468 

 Cock Chaffinch (Fringilla ccelebs) at Nest 



(from R. and C. Kearton) - - - 469 



