. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. CROCODILIANS, LIZARDS, AND SNAKES. 079 the throat to the tail. Size smaller than the N. sipedon and allied sj^e- cies. ]>ase of tail 6()ini)ressed. This species, although restricted to the peninsula of Florida in its range, presents us with four subspecies, which differ greatly in color- ation. They are defined in the following table: Scales in 19 rows; above blackish brown,with nuiuerous closely placed cross-bands. N. c. compsolama. Sca
. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. CROCODILIANS, LIZARDS, AND SNAKES. 079 the throat to the tail. Size smaller than the N. sipedon and allied sj^e- cies. ]>ase of tail 6()ini)ressed. This species, although restricted to the peninsula of Florida in its range, presents us with four subspecies, which differ greatly in color- ation. They are defined in the following table: Scales in 19 rows; above blackish brown,with nuiuerous closely placed cross-bands. N. c. compsolama. Scales in 21 rows; four series of longitudinal spots above, those of the median pair forming two longitudinal stripes on the greater part of the length; the laterals forming stripes on the neck only N. c. ianiata. Scales in 21 rows; numerous dark cross bands, which are resolved into three rows of anterior to the tail, and four longitudinal stripes on the neck. i\r. c. compreasicanda. Scales in 21 rows; sooty above, with transverse bands anteriorly N. c. ohscnra. Scales in 23 rows; yellowish, with narrow brown cross bauds; no postocular baud. N. c. walkerii. The yellow colors are brighter in the smaller individuals, and the dark color of the inferior surfaces is darker. The ends of the gastros- teges have a yellow spot, which becomes wider in older individuals, reducing the extent of the dark ground to a stripe-like shade. NATRIX COMPRESSICAUDA COMPRESSICAUDA Kennicott. Natrix compressicauda compressicauda Cope, Proc. U. S. Nat. Mus., XI, 1888, i>. 392. Nerodia compressicauda Kennicott, Proc. Acad. Nat. Sci. Phila., 1860, p. 335. Natrix compressicauda hiviUata Cope, Proc. U. S. Nat. Mus., XI, 1888, p. 392. Body moderately stout, with subtriangular section, compressed toward the tail, where it is considerably higher than broad. Head elongate, rather narrow, but very deep. Plates of the crown large; frontal short, very broad; loreal small; three postorbi- tals, upper an
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