. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. 982 REPORT OF NATIONAL MUSEUM, 1898. Measurements.—Total length, 378 mm.; tail, 98 mm. Two specimens in my private collection from Volusia, Florida. In this form the striping which appears on the neck of the form com- pressicauda is extended the entire length. It bears thus a i)artial resemblance to the Natrix clarkii, which is not far removed in affinity from the N. compressicauda. The form described as pictiven- tris connects N


. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. 982 REPORT OF NATIONAL MUSEUM, 1898. Measurements.—Total length, 378 mm.; tail, 98 mm. Two specimens in my private collection from Volusia, Florida. In this form the striping which appears on the neck of the form com- pressicauda is extended the entire length. It bears thus a i)artial resemblance to the Natrix clarkii, which is not far removed in affinity from the N. compressicauda. The form described as pictiven- tris connects N. compressicauda with the NATRIX COMPRESSICAUDA WALKERII Yarrov. Tropidonotus compressicaudus walkerii Yakrow, Proc. U. S. Nat. Mus., YI, 1883, p. 154. The scuta of this subspecies are quite as in the last; as in the form of the rostral, internasal, and frontal plates and the relation of the orbit to the superior labials. Its chief peculiarities are in its twenty-three rows of dorsal scales, and in its coloration. In the latter it approaches the. Fig. 257. Natrix compressicauda walkeeii Yarrow. = 1. Clearwater, Florida. Cat. No. 10681, N. c. compsolcema. Color above brownish yellow, crossed by numerous brown crossbars which are as wide as the spaces which separate them— namely, two scales—and which extend to the first row of scales. These bars become wide on the part of the body near the head, and are split by the ground color without forming bands, except two short ones which form a V on the i^arietal plates. No postorbital band. Labials dusky, yellow bordered in front; geneials the same, with a large median yellow spot on each. Abdomen dusky with a median row of round yellow spots, which soon become irregular in number and i^osition. Ends of gastrosteges yellow on the anterior fifth of the length. Cat. No. 10681 (tail injured); gastrosteges, 137 + 1; length, 467 mm. In the absence of the longitudinal stripes on the superior surface posterior to the


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