Suborder Percesoces.—The Silversides: Atherinidæ.—The Mullets: 215 Mugilidæ.—The Barracudas: Sphyrænidæ.—Stephanoberycidæ.— Crossognathidæ.—Cobitopsidæ.—Suborder Rhegnopteri. CHAPTER XIII. PHTHINOBRANCHII: HEMIBRANCHII, LOPHOBRANCHII, AND HYPOSTOMIDES. Suborder Hemibranchii.—The Sticklebacks: Gasterosteidæ.—The 227 Aulorhynchidæ.—Cornet-fishes: Fistulariidæ.—The Trumpet-fishes: Aulostomidæ.—The Snipefishes: Macrorhamphosidæ.—The Shrimp-fishes: Centriscidæ.—The Lophobranchs.—The Solenostomidæ.—The Pipefishes: Syngnathidæ.—The Sea-horses: Hippocampus.—Suborder Hypostomides, the Sea-moths: Pegasidæ. CHAPTER XIV. SALMOPERCÆ AND OTHER TRANSITIONAL GROUPS. Suborder Salmopercæ, the Trout-perches: Percopsidæ.— 241 Erismatopteridæ.—Suborder Selenichthyes, the Opahs: Lamprididæ.— Suborder Zeoidea.—Amphistiidæ.—The John Dories: Zeidæ.— Grammicolepidæ. CHAPTER XV. BERYCOIDEI. The Berycoid Fishes.—The Alfonsinos: Berycidæ.—The Soldier-fishes: 250 Holocentridæ.—The Polymixiidæ.—The Pine-cone Fishes: Monocentridæ. CHAPTER XVI. PERCOMORPHI. Suborder Percomorphi, the Mackerels and Perches.—The Mackerel 258 Tribe: Scombroidea.—The True Mackerels: Scombridæ.—The Escolars: Gempylidæ.—Scabbard and Cutlass-fishes: Lepidopidæ and Trichiuridæ.—The Palæorhynchidæ.—The Sailfishes: Istiophoridæ.— The Swordfishes: Xiphiidæ. CHAPTER XVII. CAVALLAS AND PAMPANOS. The Pampanos: Carangidæ.—The Papagallos: Nematistiidæ.—The 272 Bluefishes: Cheilodipteridæ.—The Sergeant-fishes: Rachycentridæ.—The Butter-fishes: Stromateidæ.—The Rag-fishes: Icosteidæ.—The Pomfrets: Bramidæ.—The Dolphins: Coryphænidæ.—The Menidæ.—The Pempheridæ.—Luvaridæ.—The Square-tails: Tetragonuridæ.—The Crested Bandfishes: Lophotidæ. CHAPTER XVIII. PERCOIDEA, OR PERCH-LIKE FISHES. Percoid Fishes.—The Pirate-perches: Aphredoderidæ.—The Pigmy 293 Sunfishes: Elassomidæ.—The Sunfishes: Centrarchidæ.—Crappies and Rock Bass.—The Black Bass.—The Saleles: Kuhliidæ.—The True Perches: Percidæ.—Relations of Darters to Perches.—The Perches.— The Darters: Etheostominæ. CHAPTER XIX. THE BASS AND THEIR RELATIVES.