Hypsiglena torquata torquata (Günther)
Leptodeira torquata Günther, Ann. Mag. Nat. Hist., ser. 3, 5:170.—Laguna Island, Nicaragua (in error).
Hypsiglena torquata torquata, Taylor, Univ. Kansas Sci. Bull., 25:371, July 10, 1939.
Apatzingán; Capirio; Cofradía.
Specimens from the three mentioned localities have the dark nuchal spot bordered anteriorly by a pale blotch. In life the specimen from Capirio (UMMZ 114424) had rich reddish brown dorsal spots; the dorsal ground color was grayish white above and somewhat more gray laterally. The pale nuchal area was a cream-color, and the iris was grayish red.
All of the specimens were found in the arid scrub forest in the Tepalcatepec Valley at elevations between 200 and 350 meters.
Imantodes gemmistratus gracillimus (Günther)
Dipsas gracillima Günther, Biol. Centrali-Americana, Rept., p. 177, July, 1895.—southern México. Type locality restricted to Acapulco, Guerrero, México, by Smith and Taylor (1950a:331).
Imantodes gemmistratus gracillimus, Zweifel, Amer. Mus. Novitates, 1961:12, September 16, 1959.
La Orilla.