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Siderolamprus legnotus (CAMPBELL & CAMARILLO, 1994)

IUCN Red List - Siderolamprus legnotus - Least Concern, LC

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Higher TaxaDiploglossidae, Diploglossa, Anguimorpha, Sauria, Squamata (lizards)
Subspecies 
Common NamesE: Campbell's Galliwasp
S: Celesto de Puebla 
SynonymDiploglossus legnotus CAMPBELL & CAMARILLO 1994: 195
Diploglossus legnotus — WERLER & CAMPBELL 2004
Celestus legnotus — SAVAGE et al. 2008
Celestus legnotus — JOHNSON et al. 2017
Siderolamprus legnotus — SCHOOLS & HEDGES 2021 
DistributionMexico (Puebla, Veracruz)

Type locality: Near Tepango de Rodríguez, Puebla, México. (This locality is located at 1500 m elevation in the Sierra Madre Oriental at about 20° 00' N, 97° 49' W).  
Reproductionoviparous 
TypesHolotype: ENCB 16096, adult female (formerly ENEPI 3826) 
DiagnosisDiagnosis: A species of Diploglossus having (1) a maximum snout-vent length (SVL) of 113 mm; (2) a single large median prefrontal; (3) the second median supraocular not contacting the prefrontal; (4) three loreals per side, the middle scale large, reaching the supralabial series, and not divided into a canthal; posterior scale not horizontally divided into two scales; (5) three or four postoculars per side, arranged in a single series continuous with suboculars (Fig. 1); (6) a relatively short snout, usually supralabials 6-7 located directly below the eye; (7) the suture between first and second supralabials located To a pest asat equal to eve supra laris; 2; (8) 33 scales around body; (9) 75-79 scales along dorsal midline; (10) 15-17 subdigital lamellae on fourth toe; (11) dorsolateral stripes absent in adults, flanks with irregular dark bars.
Diploglossus legnotus is most easily distinguished from its northern mainland congeners by a distinctive red ventrolateral band, which is particularly evident on the two largest specimens (ENEPI 3826 and UTA R-34278). The smallest juvenile (UTA R-34279) also had considerable red ventrolateral coloration that extended to the sides of the neck and posterior supralabials. The red color gradually fades in alcohol, thus this feature is of little diagnostic value for long-preserved specimens. Diploglossus legnotus may be distinguished from its geographically closest congener, D. enneagrammus (characters in parentheses) by the following: (1) tanks with a pale ground color and irregular dark bars (dark ground color with or without pale flecks); (2) by a broader snout (Fig. 1); (3) by supracephalic scales that have posterior edges distinctly marked with dark pigment (scales uniformly colored); and (4) by the large size, 113 mm SVL, attained by adults (maximum 89 mm SVL).
Diploglossus legnotus is distinguished from all northern mainland species except D. enneagrammus by having the postocular and subocular scales arranged in a continuous versus juxtaposed series (Table 1, cf. Figs. 1, 2). Diploglossus atitlanensis is the only other species that occurs in northern Middle America that attains the size of D. legnotus. Diploglossus legnotus differs prominently from D. rozellae in lacking a discrete canthal (present in D. rozellae), in having the suture between the first and second supralabial located beneath the center (rather than anterior edge) of the naris, in having supralabials 6-7 (rather than the usual 8-9) located beneath the eye, in having more dorsal scales along the midline (79 versus 71-75), and in having fewer subdigital lamellae on the fourth toe (15-17 versus 20-24). Diploglossus legnotus differs from D. bivittatus and D. atitlanensis in lacking dorsolateral stripes in adults, in having 33 (versus the usual 29-31) scales around body, in usually having more scales along the dorsal midline (75-79 versus 72-77 or fewer), and in flank pattern (barred versus nonbarred). Diploglossus legnotus differs from D. montanus in having a single median prefrontal (versus a median prefrontal plus two lateral prefrontals: Fig: 2), 15-17 subdigital lamellae on fourth toe (versus 24-25), 75-79 scales along dorsal midline (versus 72), and a barred pattern on the sides of the body (rather than ocelli). (Camp[bell & Camarillo 1994)


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References
  • Campbell J A; Camarillo R J L 1994. A new lizard of the genus Diploglossus (Anguidae: Diploglossinae) from Mexico, with a review of the Mexican and northern Central American species. Herpetologica 50 (2): 193-209 - get paper here
  • Campos-Rodríguez, José Ismael; López-Vidal, Juan Carlos 2007. Annotated checklist of type specimens in the herpetological collection of the Escuela Nacional de Ciencias Biológicas, I.P.N., Mexico. Southwestern Naturalist 52 (2): 323-326 - get paper here
  • Canseco-Marquez,L.; Gutierrez-Mayen,G. & Salazar-Arenas,J. 2000. New records and range extensions for amphibians and reptiles from Puebla, México. Herpetological Review 31 (4): 259-263 - get paper here
  • Johnson, J. D., L. D. Wilson, V. Mata-Silva, E. García-Padilla, and D. L. DeSantis. 2017. The endemic herpetofauna of Mexico: organisms of global significance in severe peril. Mesoamerican Herpetology 4 (3): 544–620 - get paper here
  • Pérez-Higareda, Gonzalo, Marco A. López-Luna, David Chiszar and Hobart M. Smith 2002. Additions to and Notes on the Herpetofauna of Veracruz, Mexico. Bull. Chicago Herp. Soc. 37(4):67-68 - get paper here
  • Savage, JM; Lips, KR; Ibáñez RD 2008. A new species of Celestus from west-central Panama, with consideration of the status of the genera of the Anguidae: Diploglossinae (Squamata). Revista de Biologia Tropical 56 (2): 845-859 - get paper here
  • SCHOOLS, MOLLY & S. BLAIR HEDGES 2021. Phylogenetics, classification, and biogeography of the Neotropical forest lizards (Squamata, Diploglossidae). Zootaxa 4974 (2): 201–257 - get paper here
  • Torres-Hernández, LA, Ramírez-Bautista A, Cruz-Elizalde R, Hernández-Salinas U, Berriozabal-Islas C, DeSantis DL, Johnson JD, Rocha A, García-Padilla E, Mata-Silva V, Fucsko LA, and Wilson LD. 2021. The herpetofauna of Veracruz, Mexico: composition, distribution, and conservation status. Amphibian & Reptile Conservation 15(2) [General Section]: 72–155 - get paper here
  • Werler, J.E. & Campbell, J.A. 2004. NEW LIZARD OF THE GENUS DIPLOGLOSSUS (ANGUIDAE: DIPLOGLOSSINAE) FROM THE TUXTLAN FAUNAL REGION, VERACRUZ, MEXICO. Southwestern Naturalist 49 (3):327–333 - get paper here
  • Woolrich-Piña, G. A., E. García-Padilla, D. L. DeSantis, J. D. Johnson, V. Mata-Silva, and L. D. Wilson 2017. The herpetofauna of Puebla, Mexico: composition, distribution, and conservation status. Mesoamerican Herpetology 4 (4): 791–884 - get paper here
 
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