"No: the first of those monsters has a porpoise's snout, a lizard's head, a crocodile's teeth; and hence our mistake. It is the ichthyosaurus (the fish lizard), the most terrible of the ancient monsters of the deep." "And the other?" "The other is a plesiosaurus (almost lizard), a serpent, armoured with the carapace and the paddles of a turtle; he is the dreadful enemy of the other." Hans had spoken truly. Two monsters only were creating all this commotion; and before my eyes are two reptiles of the primitive world. I can distinguish the eye of the ichthyosaurus glowing like a red-hot coal, and as large as a man's head. Nature has endowed it with an optical apparatus of extreme power, and capable of resisting the pressure of the great volume of water in the depths it inhabits. It has been appropriately called the saurian whale, for it has both the swiftness and the rapid movements of this monster of our own day. This one is not less than a hundred feet long, and I can judge of its size when it sweeps over the waters the vertical coils of its tail. Its jaw is enormous, and according to naturalists it is armed with no less than one hundred and eighty-two teeth. The plesiosaurus, a serpent with a cylindrical body and a short tail, has four flappers or paddles to act like oars. Its body is entirely covered with a thick armour of scales, and its neck, as flexible as a swan's, rises thirty feet above the waves. Those huge creatures attacked each other with the greatest animosity. They heaved around them liquid mountains, which rolled even to our raft and rocked it perilously. Twenty times we were near capsizing. Hissings of prodigious force are heard. The two beasts are fast locked together; I cannot distinguish the one from the other. The probable rage of the conqueror inspires us with intense fear. One hour, two hours, pass away. The struggle continues with unabated ferocity. The combatants alternately approach and recede from our raft. We remain motionless, ready to fire. Suddenly the ichthyosaurus and the plesiosaurus disappear below, leaving a whirlpool eddying in the water. Several minutes pass by while the fight goes on under water. All at once an enormous head is darted up, the head of the plesiosaurus. The monster is wounded to death. I no longer see his scaly armour. Only his long neck shoots up, drops again, coils and uncoils, droops, lashes the waters like a gigantic whip, and writhes like a worm that you tread on. The water is splashed for a long way around. The spray almost blinds us. But soon the reptile's agony draws to an end; its movements become fainter, its contortions cease to be so violent, and the long serpentine form lies a lifeless log on the labouring deep. As for the ichthyosaurus--has he returned to his submarine cavern? or will he reappear on the surface of the sea? CHAPTER XXXIV. THE GREAT GEYSER