LIST OF ILLUSTRATIONS 



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 (Unio) 



(after Schierholtz) - - . - 407 



Edible Mussel (Mytilus edulis) (after Moe- 



bius) ------- 408 



Shells of Saddle-Oyster (Anomia) (after 



Morse) 408 



Piddocks (Pholas) 409 



Ship-Worms {Teredo navalis) (after Moe- 



bius) 410 



Date-Shells (ZjV/iOi&/««j)- - - - 411 

 Trochosphere of Tusk-Shell {Dentaliutn) 



(after Kowalevsky) - - - - 41 2 

 Egg-capsules of Purple-Shell [Purpura la- 



pillus) ------- 412 



Spawn of Whelk (^;/firz«z/w «;?i/a^«OT) - 413 

 Spawn of Natica ----- 413 



Violet-Snail [Janthina) and Raft - - 413 

 Gastropod Larvs (after various authors) - 415 

 Vurpye-SheW (Purpura lapillus) - - 416 



Limpet (Patella vulgata) leaving its Scar 



at Low Tide ----- 417 

 Spawn of Squid (Zo/?^(7) - - - - 418 

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

 Pilidium Larva (after Metschnikoff) - - 419 

 Larvae 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 (Gajto-ajtou) and Nest - 428 



Larvae of Turbot (Rhombus maximus) (after 



M'Intosh) 431 



Turbot (Rhombtts ?naxinius) - ■ - 432 

 Life-history of Salmon (Salmo salar) - 433 



Larval Eel (Leptocephahts brevirostris) (from 



Selenka) - - - - - - - 434 



Page 

 Female Desmognalhus fuscus with Eggs 



(after Wilder) 435 



Egg-case of Brazilian Tree-Frog (Phyllo- 



»iedusa JAeringi) (a.itei von ]henng) - 437 

 Nests of the Ferreiro (Hyla faber) (after 



Goeldi) 438 



Development of West Indian Tree-Frog 



(Hylodes 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 C^cilian (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 



M.oM'i\AoidiM.eg2i'poAe(Megapodiusiztmuhis) 



(after Gould) ----- 452 

 Eggs of Tern (Sterna fluvialilis) (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 melaiu>pe) 



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

 Nest of Common Thrush ( Turdus tnusicus) 



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

 Nest of Wood- Pigeon (Colutiiba palumbus) 



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

 Nest of Great Reed Warbler (Acrocephalus 



arundinacetis) ----- 4^8 

 Penduline Tit (Aigithalus pendulinus) and 



Nest - - 459 



Nest and Young of Tailor-Bird (Orthotomus 



sutorizts) ------ 460 



Brooding Flamingo (Phcenicopterus roseus) 461 

 Nest of an Oven-Bird (/^z(^«arzMj-) - - 461 

 Edible Nests of Collocalia - - - 462 

 Nest of Sociable Grosbeak (Philhetcerus 



sociiis) ------- 463 



Female Dotterel (Eudromias morinellus) - 465 

 Wild Duck defending her Brood against a 



Brown Rat ------ 467 



Skylark (Alauda arvensis) at her Nest 



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

 Cock Chaffinch (Fringilla cailebs) at Nest 



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



