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Show 238 DR. R. W. SHUFELDT ON [Apr. 1, remarks occur:-" Die Gerrhonotus, welche enige aussere Aehnlichkeit mit den Cercosauri haben, entfernen sich von ihnen durch die dachziegelformige Beschuppung des Unter-kinns, vorziiglich aber durch die eigenthiimliche schwammige Zunge, welche mit zwei besonders geformten glatten Spitzen endigt, ganz ahnlich, wie es die treffliche Abbildung von Heloderma horridum zeigt, welche Hr. Troschel (Archiv fiir Natur. 1853, xix, 1 Taf. xiii. fig. 1) geliefert hat.") (20) 1864. C O P E ( E D W A R D DRINKER).-Proceedings of the Academy of Natural Sciences of Philadelphia: p. 227.-(Makes a group Pleurodynia containing the Iguania, Diploglossa, Thecaglossa, and Leptoglossa, giving the characters of each, placing the Helodermatidce with the Anguidce and Ger-rhonotidce in the Diploglossa.) (21) 1864. S U M I C H R A S T (F.).-' Annals and Magazine of Natural History.' Lond. xiii. pp. 497-500. (Considers the H. horridum as belonging to the Varanidce ; gives a very interesting account of its habits and other matters referring to the species. Speaks of the difficulty of studying this species from the fact that it is nocturnal in its habits: of how tenacious they are of life, and even after life is apparently extinct the muscles long respond to stimulation.) (22) 1864. Idem.-" Note sur les Mceurs de quelques Reptiles du Mexique." Bibl. univers. et Revue Suisse, Arch, des Scien. Phys. et Nat. t. xix. pp. 45-61. (Places H. horridum in the family Varanidce, and gives a brief account of its external appearance and of its habits. This paper seems to be substantially what had already appeared in the Ann. and Mag. of Nat. Hist., for which see No. 21 antea.) (23) 1865. K A U P ( J . J.).-" Einige Nachtrage zur Gattung Heloderma horridum." Wiegm. Archiv fiir Naturgeschichte, pp. 33-40; pi. iii. figs. 1 and 2.-(The figures present us with very fair drawings of superior and inferior views of the skull of a Heloderma horridum.) (24) 1866. C O P E ( E . D.).-Proceedings of the Academy of Natural Sciences of Philadelphia, pp. 303, 311.-(H. suspectum referred to in a collection of Reptilia and Batrachia of the Sonoran Province of the Nearctic Region. The collection was made by Dr. E. Coues.) (25) 1869. Idem. loc. cit. p. 5.--(This same author briefly refers to the characters of the Helodermatidce in this place, and defines II. suspectum as a distinct species.) (26) 1873. G E R V A I S (PAUL).-Journal de Zoologie, p. 453 - (There are three plates with this excellent paper, giving figures of many of the structural parts of H. horridum, this talented anatomist having secured a large specimen of the Reptile.) (27) 1873. Idem.-"Structure des dents de l'Heloderme et des Ophidiens." Comptes Rendus,tom.lxxvii.p. 1069.-(A brief account of the teeth in Heloderma.) |