360 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1941 



the water. It is said that some of these turtles cannot swallow unless they 

 have their heads beneath the water. The writer has seen them take cockroaches 

 beneath the water to swallow them. 



WATER-TURTLE OF NEW GUINEA (Carettochelys), Habits unknown. 

 Supposedly like those of other fresh-water turtles. (See Testudinidae — aquatic 

 types.) 



SOFT-SHELLED TURTLES (Trionychidae). Fish and meat appear to be 

 adequate foods. These turtles spend most of their time in the water or mud, 

 but enjoy sunning themselves, so in addition to an ample swimming tank, they 

 should have a place to rest above the water. 



LIZARDS AND SNAKES (SQUAMATA) 

 LIZAKDS (SrrBOBDEE SAUBIA) 



GECKOES (Gekkonidae). Tropical animals. Keep warm. Feed cock- 

 roaches, mealworms, and other Insects. 



CAT-EYED GECKOES (Eublepharidae). Nocturnal. Feed insects. 



BARK GECKO (Uroplatidae). Habits presumably same as those of the true 

 geckoes. Try similar food. 



"WORM" LIZARD (Pygopodidae). Habits not known. Try feeding earth- 

 worms, enchytrae, and insects. 



AGAMAS and their allies (Agamidae). Ground-dwelling and arboreal. Feed 

 insects, fruit, meat, tender green leaves. 



IGUANAS and their allies (Iguanidae). Small species eat insects and small 

 invertebrates. Large forms devour birds and small mammals, and rob birds' 

 nests. The marine iguana of the Galdpagos Islands feeds on seaweed. The com- 

 mon iguana of tropical America is largely herbivorous. Feed fruit and green 

 vegetation. The chuckwalla of the southwestern United States eats cactus 

 and other flowers. Feed flowers, buds, and green vegetation. Some desert 

 forms, such as the horned lizard (horned "toad"), need sand in which to burrow. 

 Feed ants and other insects. 



XENOSAURUS (Xenosauridae). Related both to the Iguanidae and the 

 Anguidae. Food habits are presumably the same. 



ZONURUS (Zonuridae). Feed ground meat, boiled egg, and lettuce. 



SLOW-WORMS, ALLIGATOR LIZARDS, and their allies (Anguidae). The 

 burrowing forms feed on small earthworms, enchytrae, and possibly slugs. 

 The more active terrestrial ones catch insects. Feed enchytrae, mealworms, 

 waxworms, other insects, and meat. 



"WORM" LIZARD (Anniellidae). Burrowing. Feeding habits probably sim- 

 ilar to Anguidae. Provide with earth. 



GILA MONSTERS (Helodermatidae). Feed eggs mixed with raw chopped 

 beef. Will sometimes take mice. 



MONITORS (Varanidae). Feed mice, rats, lizards, snakes, fish, birds, meat, 

 eggs. Extremely voracious. 



NIGHT LIZARDS (Xantusiidae). Feed same as Teiidae (next family). 



RACE-RUNNERS and their allies (Teiidae). The small species eat insects, 

 mealworms, grubs, grasshoppers, crickets, and other invertebrates of suitable 

 size. Large ones, such as the tegus, devour young chickens, eggs, raw meat, 

 and rats. 



"WORM" LIZARDS (Amphisbaenidae). Burrow in sand or soil. Feed earth- 

 worms, enchytrae, and raw beef. 



