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Stegonotus reticulatus BOULENGER, 1895

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Higher TaxaColubridae, Colubrinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Common NamesE: Reticulate groundsnake 
SynonymStegonotus reticulatus BOULENGER 1895: 31
Stegonotus reticulatus — KAISER et al. 2018: 43 
DistributionPapua New Guinea (southern slopes of the mountainous spine of the country)

Type locality: “Fergusson Island, D’Entrecasteaux Group, British New Guinea” [Milne Bay Province, Papua New Guinea; ca. 9.54°S, 150.67°E].  
TypesLectotype: BMNH 1946.1.14.88 (formerly, adult male, designated by Wells & Wellington (1985). A subsequent designation of BMNH 1946.1.14.87 (formerly, an adult female, as lectotype by Kaiser et al. (2018) is invalid due to the priority of the earlier lectotype designation. 
DiagnosisKaiser et al. 2018 “expect members of this species to generally possess values of D = 17-17-15, SLE = 4+5, SL = 8, IL = 9, and ILG = 5, with relatively high ventral and subcaudal scale counts (V > 200, SC > 90). However, we caution our readers that values outside of these parameters may, but probably rarely, occur in conspecifics. The male value of SCR = 0.30 in the holotype is relatively high for the genus.”

Comparison: For a comprehensive comparison of species, especially to the new species Stegonotus ayamaru, see that entry and Kaiser et al. 2019. 
CommentSynonymy: Listed as a synonym of S. cucullatus by Wallach et al. 2014, but Kaiser et al. 2018 removed Lycodon reticulatus from the synonymy of S. cucullatus. 
EtymologyNamed after the Latin reticulatus, meaning “made like a net”. In reference to the net-like dorsal pattern. 
  • Boulenger, G. A. 1895. On a collection of reptiles and batrachians from Ferguson Island, D'Entrecasteaux group British New Guinea. Ann. Mag. Nat. Hist. (6) 16: 28-32 - get paper here
  • Kaiser, Christine M.; Hinrich Kaiser & Mark O'Shea 2018. The taxonomic history of Indo-Papuan groundsnakes, genus Stegonotus Duméril et al., 1854 (Colubridae), with some taxonomic revisions and the designation of a neotype for S. parvus (Meyer, 1874). Zootaxa 4512 (1): 001–073 - get paper here
  • KAISER, CHRISTINE M.; MARK O’SHEA, HINRICH KAISER 2019. A new species of Indo-Papuan groundsnake, genus Stegonotus Duméril et al., 1854 (Serpentes, Colubridae), from the Bird’s Head Peninsula of West Papua, Indonesia, with comments on differentiating morphological characters. Zootaxa 4590 (2): 201-230 - get paper here
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