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Ficimia ruspator SMITH & TAYLOR, 1941

IUCN Red List - Ficimia ruspator - Data Deficient, DD

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Higher TaxaColubridae, Colubrinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Common NamesE: Guerreran Hooknose Snake
S: Nariz de Gancho Guerrense 
SynonymFicimia ruspator SMITH & TAYLOR 1941: 364
Ficimia ruspator — LINER 1994
Ficimia ruspator — LINER 2007
Ficimia ruspator — WALLACH et al. 2014: 297 
DistributionMexico (Guerrero)

Type locality: Mexico: 3 mi E Tixtla, 10 mi E Chilpancingo, Guerrero.  
TypesHolotype: INHS (= UIMNH) 25064 (23646); E. H. Taylor; July 29, 1940. 
DiagnosisDiagnosis. Similar to Ficimia publia, but blotches on body 43, on tail 11. Similar to Ficimia variegata, but internasals present. Two postoculars; blotches narrow, tending to be light-centered; ventrals 154; caudals 33 (Smith & Taylor 1941: 364).

Description of holotype. Rostral large, elongate, its suture with frontal subequal to sutures between latter and prefrontals ; rostral sharply upturned anteriorly, the ridge bordered posteriorly by a shallow depression ; length of rostral from anterior ridge to frontal (2.3 mm) distinctly greater than length of frontal (2.0 mm), very slightly greater than length of median parietal suture; nasal narrow, anterior section fused with first labial; prefrontal in contact with second labial; preocular single, large; two postoculars, lower smaller; one elongate, narrow, anterior temporal; two (three) tertiary temporals; seven supralabials, all relatively high, sixth largest, fourth next largest, third and fourth contacting orbit, seventh slightly larger than lower tertiary temporal; diameter of orbit nearly as great (five-sixths) as its distance from labial border, little less than half its distance from tip of snout; seven infralabials, fourth largest, three in contact with anterior chinshields; posterior chinshields practically indistinguishable, separated medially by two scales, somewhat larger than gular scales, in contact with two labials. Scales in 17 rows throughout, smooth, with single apical pits; ventrals 154; anal divided; caudals 33. Total length 144 mm; tail 20 mm (Smith & Taylor 1941: 364).

Color. General color light gray; body with 43 transverse, black blotches, some of the anterior blotches with dimly lighter (brown) centers; blotches broken on sides of body at about fifth scale row; below this sides with irregular black spots and vertical streaks, some rarely confluent with dorsal blotches, some involving ends of ventrals; spaces between blotches about equal to length of blotches or slightly less (one and one-half to two scale lengths, middorsal line); tail with 11 dorsal crossbars, sides with a very few spots. Top of head somewhat brownish gray, with numerous irregular black marks; a large dark spot under eye, reaching lip; labial sutures dark. Infra-labial sutures dark stippled, the markings not distinct ; no other gular marks ; some spots on sides of body involving ends of ventral ; a little scattered stippling on sides of belly; otherwise ventral surfaces unspotted, white (Smith & Taylor 1941: 364). 
CommentDistribution: not in Morelos fide Lemos-Espinal & Smith 2020. 
  • Hardy L M 1980. Ficimia ruspator Smith and Taylor. Guerro hook-nosed snake. Catalogue of American Amphibians and Reptiles ( 243: 1 - get paper here
  • Heimes, P. 2016. Snakes of Mexico. Chimaira, Frankfurt, 572 pp
  • Liner, Ernest A. 2007. A CHECKLIST OF THE AMPHIBIANS AND REPTILES OF MEXICO. Louisiana State University Occasional Papers of the Museum of Natural Science 80: 1-60 - get paper here
  • Mendoza-Quijano F; Smith H M 1993. A new species of hooknose snake, Ficimia (Reptilia, Serpentes). Journal of Herpetology 27 (4): 406-410 - get paper here
  • Palacios-Aguilar, Ricardo & OSCAR FLORES-VILLELA 2018. An updated checklist of the herpetofauna from Guerrero, Mexico. Zootaxa 4422 (1): 1-24 - get paper here
  • Smith, Hobart M.; Taylor, Edward H. 1941. A review of the snakes of the genus Ficimia. J. Washington Acad. Sci. 31 (8): 356-368 - get paper here
  • Wallach, Van; Kenneth L. Williams , Jeff Boundy 2014. Snakes of the World: A Catalogue of Living and Extinct Species. [type catalogue] Taylor and Francis, CRC Press, 1237 pp.
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