196 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 85 



pillars, amphibian eggs (including its own), water bugs, mosquito 

 and other fly larvae, slugs, snails, leeches, spiders, springtails, 

 beetles, mites. 



Surface, H. A., [Ed.] 



1913. First report on the economic features of the amphibians of Pennsyl- 

 vania. Zool. Bull. Div. Zool. Pennsylvania Dep. Agr., vol. 3, nos. 

 3-4, pp. 67-152, figs. 1-25, pis. i-ii, May -July. General discussion 

 of the subject, including report on examination of stomachs of 14 

 species of salamanders, two of toads, and nine of frogs. 



Wright, A. H. 



1920. Frogs : Their natural history and utilization. App. 6, Rep. U. S. 



Comm. Fisheries 1919, 44 pp. Notes on the food of various species, 

 PP- 38-42. Enemies, pp. 42-44; invertebrates, fishes, amphibians, 

 reptiles, birds, and mammals discussed. 

 Wright, A. H., and Haber, Julia M. 



1922. The carnivorous habits of the purple salamander. Copeia, no. 105, 

 PP- 31-32, April 15. Feed on aquatic insects; in captivity take 

 frogs and salamanders. 



reptilia 

 Burt, Chas. E. 



1928. Insect food of Kansas lizards with notes on feeding habits. Journ. 



Kansas Ent. Soc, vol. i, no. 3, pp. 50-68, July. Notes on stomach 

 contents of seven species with compiled information on others. Of 

 the total food in all lizard stomachs examined 51.92 per cent was 

 Orthoptera, 11.65 Lepidoptera, 9.35 Arachnida, 8.90 Hymenoptera, 

 and 6.00 Coleoptera; Diptera, Hemiptera, Trichoptera, and Mol- 

 lusca in smaller amounts. 

 Kellogg, Remington. 



1929. The habits and economic importance of alligators. Techn. Bull. 147, 



U. S. Dep. Agr., 36 pp., 2 pis., Dec. Food (pp. 21-32), nearly 

 half is crabs, crawfishes, and shrimps ; spiders, insects of various 

 orders, toads, smaller alligators, lizards, turtles, snakes, birds and 

 mammals also eaten. 



Lydekker, R. ; Cunningham, J. T. ; Boulenger, G. A.; and Thomson, J. A. 

 1912. Food and growth [of reptiles], reptiles, Amphibia, fishes, and lower 

 Chordata, pp. 47-61, London. " The food of reptiles is very vari- 

 ous," a dictum which shows distribution of predation is as charac- 

 teristic of this phylum as of others. Details in many cases. 



Pack, H. J. 



1921. Food habits of Sceloporus graciosus graciosus (Baird and Girard). 



Proc. Biol. Soc. Washington, vol. 34, pp. 63-66, Mar. Report on 

 the contents of 71 stomachs. 



1922. Food habits of Crotaphytiis zvisliaciiii Baird and Girard. Proc. Biol. 



Soc. Washington, vol. 35, pp. 1-3, Mar. 20. Report on the con- 

 tents of 18 stomachs. 



1923. Food habits of Callisaurus ventralis vcntralis (Hallowell). Proc. 



Biol. Soc. Washington, vol. 36, pp. 79-81, Mar. Twenty stomachs: 

 disclosing caterpillars, coccinellids, meloids, erotylids, chrysomclids, 

 weevils, grasshoppers, mantids, Hemiptera, ant-lions, Diptera, and 

 spiders. 



