CONTENTS ix 



PAGE. 



(Lophotidce) Ribbon-Fish ( Trachypteridce) Thornbacks (Notacanthidce)-Pomacentridce 



Wrasses (Labridce) True Wrasses (Labrus) Parrot-Wrasses (Scarus) Viviparous 



Wrasses (Diatrematidce) Chromids (Chromididce) Tuft-Gilled Fishes (Suborder Lopho- 

 branchii) Mailed Tube- Mouths (Solenostomatida) Pipe-Fishes and Sea-Horses (Syn- 

 gnathidce) Comb-Gilled Group (Suborder Plectognathi) File-Fishes and Coffer- 

 Fishes (Balistidce) Globe-Fishes and Sun-Fishes (Diodontidce) Soft-Finned Fishes 

 (Suborder Anacanthini) Lycodidce The Cod Tribe (Gadidce) True Cod (Gadus) 

 Haddock Other Species Hakes (Merluccius) Burbot (Lota) Ling and Rockling 

 (Molva) Sand-Eels and their Allies (OpTiidiidce) Cave-Fish (Lucifuga) Snake- 

 Fishes (Ophidium) Parasitic Fish (Fierasfer) Sand-Eels (Ammodytes) Conyrodus 

 The Long- Tails (Macruridce) Flat-Fishes (Pleuronedidce) Psettodes Holibut (Hippo- 

 glossus) Turbot, etc. (Rhombus) Plaice and Flounder (Pleuronectes) Soles (Solea) 

 Blind Soles (Soleotalpa) The Tube-Bladdered Fishes (Suborder Physostomi) Eel 

 Tribe (Murcenidce) Mursenas (Murcena) True Eels (Anguilla) Congers (Conger) 

 Serpent-Eels (Ophichthys) Deep-Sea Eels (Synaphobranchus) Single-Slit Eels (Sym- 

 branchidce) Electric Eel (Gymnotidce) Cat-Fishes (Siluridce) Eel-Like Cat-Fish 

 (Glarias) Wels (Silurus) Yarrell's Cat-Fish (Sagarins) Electric Cat-Fishes (Mala- 

 pterurus) Mailed Cat-Fishes (Gallichthys, etc.) Carp Tribe (Cyprinidce) True Carp 

 (Cyprinus) Crucian and Golden Carp (Carassius) Barbels (Barbus) Gudgeon (Gobio) 

 White-Fish (Leuciscus) Tench (Tinea) Beaked Carp (Chondrostoma) Bitterling 

 (Rhodeus) Bream (Abramis) Rapfen (A spins) Bleak (Alburnus) Sichel (Pelecus) 

 Loaches (Cobitis, etc.) African Loaches (Kneriidce) Characinoid Fishes (Erythrinidce) 

 Cyprinodonts (Cyprinodontidm) Double-Eyes (Anableps) Blind-Fish (Amblyopsidce) 

 Uinbres (Umbridce) Pike (Esocidce) African Beaked-Fish (Mormyridce) Feather- 

 Backs (Notopteridce) Southern Pikelets (Galaxiidce) Arapaimas (Osteoglossidce) 

 Arapaima (Arapaima) Barbelled Arapaima (Osteoglossum) Small- Mouthed Arapaima 

 (Heterotis) Moon-Eye (Hyodontidce) Chisel- Jaw (Pantodontidce) Beaked Salmon 

 (Gonorhynchidce) The Scopeloids (Scopelidce) Phosphorescent Scopeloids (Sternopty- 

 chidce and Stomateidce) Silvery Light-Fish (Photichthys) Hedgehog-Mouths (Echio- 

 stoma) The Dorab (Chirocentridce) Long-Finned Herring (Bathythrissidce) The 

 Extinct Saurodonts (Enchodontidce, Saurocephalidce, etc.) The Herring Tribe (Clupeidoe) 

 Typical Group (Glupea) Fresh- Water Herrings (Diplomystus) Anchovies (Enymulis) 

 Slops Slender-Scales (Leptolepis) The Smooth-Heads (Alepocephalidce) Southern 

 Salmon (Haplochitonidce) Salmon Tribe (Salmonidce) Typical Group (Salmo) 

 Salmon Trout Charr Many-Rayed Salmon (Onchorhynchus) Smelts (Osmerus) 

 Coregonoids (Coregonus) Grayling (Thymallus) Percopsidce Bony Pike and its 

 Kindred (Suborder sEtheospondyli) Existing Types (Lepidosteidce) Spear-Beaks 

 (Aspidorhynchidce") The Bow-Fin and its Allies (Suborder Protospondyli) Existing 

 Family (Amiidce) Extinct Families (Pachycormidce, etc.) The Sturgeon Tribe (Sub- 

 order Chondrostei) Toothed Sturgeons (Polyodontidce) Toothless Sturgeons (Acipen- 

 seridce) True Sturgeons (Acipenser) Shovel-Beaked Sturgeons (Scaphirhynchus') 

 Allied Extinct Families (Chondrosteidce, etc.) Fringe-Finned Ganoids (Order Cros- 



) Existing Species (Polypteridce) Extinct Families, .... 333 



CHAPTER IV. SHARKS AND RAYS, Subclass Elasmobranchii. 



Distinctive Features The Blue Shark and its Allies (Carchariidce) Typical Genus (Car- 

 charias) Tope (Galeus) Hammerheads (Sphyrna) Hounds (Mustelus) Porbeagle 

 Group (Lamnidce) Porbeagles (Lamna) Rondeleti's Shark (Carcharodon) Fox- Shark 

 (Alopecias) Basking-Shark (Cetorhinus) Indo-Pacific Basking-Shark (Rhinodontidce) 

 Dog-Fishes and Their Allies (Scylliidce^Tfue Dog- Fishes (Scyllium) Other 

 Genera Pavement-Toothed Sharks (Cestraciontidaz) Comb-Toothed Sharks (Noti- 

 danidce) Typical Genus (Notidanus) Frill-Gilled Shark (Chlamydoselache) The 

 Spiny Dog-Fishes and their Allies (Spinacidce) The Extinct Petalodonts (Petalodon- 

 tidw) The Angel-Fish (Squatinidce) The Saw-Fishes (Pristiophoridce and Pristidce) 



