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Salvadora lineata SCHMIDT, 1940

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Higher TaxaColubridae, Colubrinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Common NamesE: Texas Patchnose Snake 
SynonymSalvadora lineata SCHMIDT 1940: 143
Salvadora lineata — MARTIN 1958
Salvadora grahamiae lineata — WEBB 1984
Salvadora grahamiae lineata — CROTHER 2000
Salvadora grahamiae lineata — DIXON 2000
Salvadora grahamiae lineata — TENNANT & BARTLETT 2000: 304
Salvadora grahamiae lineata — CROTHER et al. 2012
Salvadora grahamiae lineata — CRUZ-SILVA 2019
Salvadora lineata — HERNÁNDEZ-JIMÉNEZ et al. 2021
Salvadora lineanta — HERNÁNDEZ-JIMÉNEZ et al. 2021 (in error) 
DistributionUSA (Texas), Mexico (Chihuahua, Coahuila, Nuevo León, Tamaulipas, Durango, San Luis Potosi, Zacatecas, Guanajuato, Queretaro, Hidalgo, Michoacan, Pueblo)

Type locality: Kingsville, Kleburg County, Texas.  
TypesHolotype: FMNH 28605, paratype: MSNG 37640 
DiagnosisDiagnosis: A Salvadora with rostral edges little raised, posterior chin shields in contact or narrowly separated, upper labials almost invariably 8-8, lower labials more frequently 9 than 10, ventrals few, 179 to 192 in males, 189 to 194 in females, caudals 90 to 103 in males, 91 to 93 in females. Supra-anal scales not keeled. In most of these characters lineata agrees with grahamiae; it is sharply distinguished from that form by having a well-defined lateral line, which is on the third scale row anteriorly (the second posteriorly). The anterior section of the nasal is usually in contact with the second labial, and the dorsolateral dark stripe passes over the temporal region to the eye [from SCHMIDT 1940].

Diagnosis: Well-developed rostral scale, elongated and with free edges; 8 or 9 supralabials, fourth and fifth in contact with the eye; 9 to 11 infralabials; preocular divided; a single loreal scale; prenasal scale in contact with or separated from the second supralabial; a second pair of chinshields in contact with each other or separated by a row of scales; 179–202 ventral scales; 81–107 subcaudal scales; maxillary teeth normally 10 + 3. Color pattern consists of a pale vertebral line reaching the top of the head, three to five rows of scales wide on the first third of the body and only three posteriorly; head bordered by a pair of continuous dorsolateral lines from the loreal region across the body, dark line on the sixth and seventh dorsal scales; lateral line paler than the well-developed dorsolateral line on the third row of dorsal scales.
Differs from S. grahamiae by having a pair of well-defined lateral lines on the third row of the dorsal scales, extending from the first third of the body and to the cloaca (HERNÁNDEZ-JIMÉNEZ et al. 2021). 
CommentDistribution: See map in HERNÁNDEZ-JIMÉNEZ et al. 2021: Fig. 8. 
EtymologyNamed after the Latin ‘linea’, meaning ‘line’, in reference to the conspicuous lateral line. 
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