Thornscrub Hook-nosed Snake
Gyalopion quadrangulare
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- G. quadrangulare – Santa Cruz Co, AZ – photo by Damon Salceies
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- G. quadrangulare – Santa Cruz Co, AZ – photo by Damon Salceies
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- G. quadrangulare – Santa Cruz Co, AZ – photo by Damon Salceies
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- G. quadrangulare – Map by Tom Lott, SWCHR
DISTRIBUTION: In our region, Gyalopian quadrangulare occurs in southern Arizona in Santa Cruz County.
LEGAL STATUS: No Listings
MEANING OF SCIENTIFIC NAME: Gyalopian quadulangulare (Gunther – 1893)
Genus: Gyalopion, Greek = small hollow – ref. up-turned rostral with distinct concave dorsal surface.
Species: quadrangulare, Latin – quadrus = four-fold + angularis = having angles or corners – ref. shape of dark dorsal blotches
Ref. Ellen Beltz 2006