List of Illustrations 



XIX 



PAGE 



Brain of a Perch, Perca flavescens j j j 



Petromyzon marinus iinicolor. Head of Lake Lamprey, showing Pineal Body . 1 1 1 



Chologasler cormtlus, Dismal-swamp Fish jjg 



Typhlichthys subterraneus, Blind Cave-iish j jg 



Anableps dovii, Four-eyed Fish jj- 



Ipnops mitrrayi , jjg 



Boleophthalmus chinensis, Pond-skipper i j3 



Lampeira wilderi, Brook Lamprey j2o 



Branchiostoma lanceolatum, European Lancelet 120 



Pseudupeneus macidalus, Goatfish 122 



Xiphophonis helleri, Sword-tail Minnow 124 



Cymatogaster aggregatiis, White Surf-fish, Viviparous, with Young 125 



Goodea liiitpoldi, a Viviparous Fish 126 



Egg of CaUorhynchus antarclicus, the Bottle-nosed Chimasra 127 



Egg of the Hagfish, Myxiitc limosa 127 



Egg of Port Jackson Shark, Heterodontus philippi 128 



Development of Sea-bass, Centroprisks strialus i^j 



Centroprisies striatus, Sea-bass 127 



Xiphias gladius, Young Swordfish j ^n 



Xiphias gladius, Swordfish i og 



Larva of the Sailfish, htiophonis, Verj' Young 140 



Lan'a of Brook Lamprey, Lampeira wilderi, before Transformation 140 



Anguilla chrisypa. Common Eel 140 



Larva of Common Eel, Anguilla chrisypa, called Lepiocephalus grassii 141 



Larva of Sturgeon, Acipenser sturio 141 



Larva of Chcetodon sedentarius 142 



Chxlodon capistratus. Butterfly -fish 142 



Mola mola. Very Early Larval Stage of Headfish, called Ce)tlaiirus boops 143 



Mola mola. Early Lan'al Stage called Molacanihus nummularis 144 



Mola mola, Advanced Lan'al Stage 144 



Mola mola, Headfish, Adult 146 



Albula vulpes. Transformation of Ladyfish from Larva to Young 147 



Development of the Horsehead-fish, Selene vomer 148 



Salanx hyalocranius, Icefish 149 



Dallia pectoralis, Alaska Elackfish 149 



Ophiocephalus barca. Snake-headed China-fish 150 



Carassius aiiratus. Monstrous Goldfish 151 



Jaws of Nemichlhys avocetia 156 



Cypselurus calijornicus, Flying-fish 157 



Ammocrypta clara. Sand-darter 158 



Fierasjer acus, Pearlfish, issuing from a Holocanthurian 159 



Gobiomorus gronovii, Portuguese Man-of-war Fish 160 



Tide Pools of Misaki i6r 



Plvchochcilus oregonensis, Squawfish 162 



Ptychocheilus grandis, Squawfish, Stranded as the Water Falls 164 



