LIVING REPTILES. Turtles, or _Chelonia_. Aligator Turtle Louisiana. Snapping Turtle Zoological Park. Box Turtle Zoological Park. Giant Tortoise Galapagos Island. Gopher Tortoise Florida. Painted Turtle New York. Green Turtle (marine) New York. Soft-shelled Turtle Indiana. Saurians, or _Crocodilia_. Alligator Florida. Florida Crocodile Southern Florida. Broad-nosed Crocodile Africa. Lizards, or _Lacertilia_. Iguana (_I. tuberculata_) West Indies. Horned “Toad” Arizona. Green Lizard (_L. viridis_) Europe. Monitor Ceylon. “Glass Snake” Florida. Gila Monster Arizona. Chameleon Africa. Serpents, or _Ophidia_. Harmless. Regal Python Malay Peninsula. Anaconda British Guiana. Black Snake (_B. constrictor_) Zoological Garden. Garter Snake Zoological Park. Hog-Nosed Snake Zoological Park. Venomous. Coral Snake Florida. Cobra de Capello India. Diamond-Backed Rattlesnake Florida. Water Moccasin Florida. THE TURTLES AND TORTOISES. The Order of Turtles, (_Chelonia_), is so large that it has been found necessary to devote to its representatives the whole central space of the main hall of the Reptile House, and also a specially designed Tortoise House of glass in the eastern end of the building. In the main hall are two features—one, a large square tank for large turtles; the other, a pool of running water between banks of earth, sand, and living plants. This tank is 35 feet in length, and by means of low, plate-glass partitions it is divided into ten cross sections, each of which can very comfortably provide for the wants of at least three species of turtles of medium size. With a wonderfully rich Chelonian fauna on the western continent to provide for, there is little room to spare for Old World forms, and the temptation to make this collection strictly Occidental, is almost too great to be resisted. For the sake of brevity and clearness, only six types have been chosen for special mention. [Illustration: GIANT TORTOISE.] The following species taken together fairly represent the different forms of Chelonians, from the highest to the lowest: