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Thamnosophis martae (GLAW, FRANZEN & VENCES, 2005)

IUCN Red List - Thamnosophis martae - Endangered, EN

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Higher TaxaPseudoxyrhophiidae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common Names 
SynonymLiopholidophis martae GLAW, FRANZEN & VENCES 2005: 84
Bibilava martae — GLAW et al. 2007
Thamnosophis martae — CADLE & INEICH 2008
Thamnosophis martae — WALLACH et al. 2014: 727 
DistributionN Madagascar (Antsiranana)

Type locality: Montagne des Francais (12°19'34''E, 49°20'09'') ca 300 m elevation, Antsiranana Prov. N Madagascar, Distr. Montagne des Francais  
Reproductionoviparous 
TypesHolotype: ZSM 253/2004 
DiagnosisDiagnosis: A species of the Liopholidophis stumpffi group that differs from all species of the L. sexlineatus group (L. rhadinaea, L. dolicocercus, L. grandidieri, L. sexlineatus, L. varius) by 19 rows of dorsal scales (vs. 17), more ventrals (185 vs. 139-179), colouration, and the presence of apical pits (absent in all species of the L. sexlineatus group). Liopholidophis martae sp. n. differs from all species of the Liopholidophis stumpffi group (L. stumpffi, L. epistibes, L. lateralis, L. infrasignatus) by a higher number of ventrals (185 vs. 141-169), and from L. epistibes, L. lateralis, L. infrasignatus, and the males of L. stumpffi by a higher number of subcaudals (109 vs. 62-104). Moreover, it differs from L. stumpffi by a larger maximum size (847 mm vs. 711 mm total length). The new species differs distinctly from L. lateralis by the lack of a well defined continuous light dorsolateral stripe. The general dorsal colouration of L. martae sp. n. resembles those of most individuals of L. stumpffi and L. epistibes in having narrow but more or less distinctive light dorsolateral stripes on the neck and anterior body which gradually fade posteriorly (see Figs. 4-5). However, it differs from L. stumpffi by its extensive dark spots and stripes on the venter (vs. immaculate) and by the position of the postocular bar, which diagonally crosses the ultimate supralabial in L. martae (vs. restricted to upper edge of ultimate supralabial: Fig. 4; see also CADLE 1996: Fig. 8B). From L. epistibes it differs by its short postocular bar which ends on the ultimate supralabial (vs. usually confluent with dark lower lateral stripe on side of neck: CADLE 1996: Fig. 8A). (Glaw et al. 2005)


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CommentL. martae belongs to the L. stumpffi group and is characterized by 19 dorsal rows, 185 ventrals, 109 subcaudals, and colouration (lack of well defined, continuous light dorsal stripes, presence of extensive dark spots and stripes on venter, postocular bar extends diagonally across the ultimate supralabial). 
EtymologyNamed after Marta Puente Molins “in recognition of her invaluable help in the field.” 
References
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Cadle, John E.; Ineich, Ivan. 2008. Nomenclatural status of the Malagasy snake genus Bibilava Glaw, Nagy, Franzen, and Vences, 2007: Resurrection of Thamnosophis Jan and designation of a lectotype for Leptophis lateralis Dumeril, Bibron, and Dumeril (Serpentes: Colubridae). Herpetological Review 39 (3):285-288 - get paper here
  • D'Cruze, Neil; Jeremy Sabel, Katie Green, Jeffrey Dawson, Carlie Gardner, Janine Robinson, Georgina Starkie, Miguel Vences, and Frank Glaw. 2007. The First Comprehensive Survey of Amphibians and Reptiles at Montagne des Francais, Madagascar. Herp. Cons. Biol. 2 (2): 87-99 - get paper here
  • D’Cruze, N.; Köhler, J.; Franzen, M & Glaw, F. 2008. A conservation assessment of the amphibians and reptiles of the Forêt d’Ambre Special Reserve, north Madagascar. MADAGASCAR CONSERVATION & DEVELOPMENT 3 (1): 44-54 - get paper here
  • Glaw, F., M. Franzen & M. Vences 2005. A new species of colubrid snake (Liopholidophis) from northern Madagascar. Salamandra 41 (1-2): 83-90 - get paper here
  • Glaw, F.; Nagy, Z.T.; Franzen, M. & Vences, M. 2007. Molecular phylogeny and systematics of the pseudoxyrhophiine snake genus Liopholidophis (Reptilia, Colubridae): evolution of its exceptional sexual dimorphism and descriptions of new taxa. Zoologica Scripta 36: 291–300 - 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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