« 



65 



1425. . 1829. Uber die Gesetzlichkeit in der geographischen Verbreitung der Saurier. Isis von Oken 



22(3-4):418-428. 



1426. . 1834. Herpetologica Mexicana seu descriptio amphibiorum Novae Hispaniae. Pars prima. 



Saurorum species. Liideritz, Berlin. 



1427. Willey, D.A. 1906. Gila monsters. Sci. Am. 95:192. 



1428. Wintin, W.K. and H.E. Lawler. 1988. Captive management and propagation of the reticulated Gila 

 monster {Heloderma suspectum suspectum) at the Arizona-Sonora Desert Museum, pp. 467-472. In: 

 American Association of Zookeepers, Topeka, Kansas. 



1429. Wirth, T. 1972. Contribution to the study of marrow blood cell lines in reptiles granulocytic, 

 lymphocytic and monocytic lines. C.R. Hebd. Seances. Acad. Sci. Ser. D. Sci. Nat. 274:1871-1873. 



1430. Wood, S.C. and C.J.M. Lenfant. 1976. Respiration: Mechanics, control and gas exchange, pp. 225- 

 274. In: C.Gans and W.R. Dawson (eds.), Biology of the Reptilia, Vol. 5, Physiology A, Academic 

 Press, New York. 



1431. Woodbury, A.M. 1928. The reptiles of Zion National Park. Copeia (166):14-21. 



1432. . 1931. A descriptive catalogue of the reptiles of Utah. Bull. Univ. Utah Biol. Ser. 21:1-129. 



1433. . 1933. Biotic relationship of Zion Canyon Utah, with special reference to succession. Ecol. 



Mongr. 3:147-245. 



1434. Woodson, W.D. 1943. How dangerous is the Gila monster? Desert Mag. 6(9): 1 1-14. 



1435. . 1943. The Gila monster's bite. Frontiers 8(l):19-20. 



1436. . 1944. Gila monster. New Mexico Mag. 22(3): 19, 33-34. 



1437. . 1947. Toxicity of Heloderma venom. Herpetologica 1:31-33. 



1438. . 1949. Diseases of Heloderma. Herpetologica 5:91. 



1439. . 1949. Summary of Heloderma's food habits. Herpetologica 5:91-92. 



1440. . 1949. Gila monster in California? Herpetologica 5:151. 



1441. . 1950. 1 keep a Gila monster in my home. Desert Mag. 14:19-22. 



1442. Wright, J.W. 1971. Account of a field trip to Arizona and Texas. Herpetology 5(4):9-13. 



1443. Wright, K., C. Pugh and L. Walker. 1995. Ultrasonographic sexing of helodermatid lizards, pp. 239- 

 242. In: R.E. Junge (ed.). Proceedings Joint Conference American Association of Zoo Veterinarians, 

 Wildlife Disease Association, American Association of Wildlife Veterinarians, East Lansing, 

 Michigan. 



1444. Wright, N.P. 1973. A Guide to Mexican Mammals and Reptiles. 3'^'' ed. Minutiae Mexicana, Mexico. 



1445. Wright, S.A. 1906. The Gila monster and its prey. Sci. Am. 95:263. 



1446. Wynne, R.H. 1981. Lizards in Captivity. T.F.H. Publ., Neptune City, New Jersey. 



1447. Ximenez, F. 1615. Quatro libros de la naturaleza, y virtudes de las plantas, y animales que estan 

 recevidos en el uso de medicina en al Nueva Espana, y la methodo, y correccion, y preparacion, que 

 para administrarlas se requiere con lo que el Doctor Franciso Hernandez escrivio en lengua latina. 

 Mexico. 



1448. Yamaguti, S. 1961. Systema Helminthum. The Nematodes of Vertebrates. Part 1. Interscience Publ., 

 New York. 



1449. Yarrow, H.C. 1875. Report upon the collections of batrachians and reptiles made in portions of 

 Nevada, Utah, California, Colorado, New Mexico, and Arizona, during the years 1871, 1872, 1873, 

 and 1874. pp. 509-584. In: G.M. Wheeler, Report upon Geographical and Geological Explorations 

 and Surveys West of the one hundredth meridian. Vol. V, Zoology. Engineer Dept., U.S. Army, 

 Washington, D.C.. 



1450. . 1882. Check list of North American Reptilia and Batrachia, with catalogue of specimens in 



U.S. National Museum. Bull. U.S. Natl. Mus. 24:1-249. 



