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Calamaria abstrusa INGER & MARX, 1965

IUCN Red List - Calamaria abstrusa - Data Deficient, DD

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Higher TaxaColubridae, Calamariinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Common Names 
SynonymCalamaria abstrusa INGER & MARX 1965: 179
Calamaria sumatrana BOULENGER 1894 (non EDELING) (part.)
Calamaria abstrusa — INGER & VORIS 2001
Calamaria abstrusa — WALLACH et al. 2014: 134 
DistributionIndonesia (Nias, W Sumatra)

Type locality: Padang, Sumatra.  
TypesHolotype: NMW 17026, an adult male, collected by J. Schild; Paratypes: USNM 35795 from Nias; ZMB 12028 from Sumatra; BM probably from Sumatra; ZMB 5986 from "East Indies." 
DiagnosisDiagnosis: Maxillary teeth modified; third and fourth supralabials entering orbit; preocular present; mental touching anterior chin shields; paraparietal surrounded by 6 shields and scales; ventrals yellow or white except at lateral edges; subcaudals of males more than 20, of females more than 13; no continuous vertebral stripe; ventrals less than 160 in both sexes. Description Rostral wider than high, portion visible from above 1/2 length of prefrontal suture; prefrontal 2/3 length of frontal, touching first 2 supralabials; frontal hexagonal, 1 3/4 to 2 4/5 times width of supraocular, about 7/8 length of parietal; parietal almost twice length of prefrontal; paraparietal surrounded by 6 shields and scales, by 5 on one side of one specimen; nasal smaller than postocular; preocular present; neither ocular as high as eye; eye about 1 1/2 times eye-mouth distance; 5 supralabials, third and fourth entering orbit, fifth the largest, first 4 subequal; mental triangular, touching anterior chin shields; 5 infralabials, first 3 touching anterior chin shields; both pairs of chin shields meeting in midline; 3 gulars in midline between posterior chin shields and first ventral.  
EtymologyNamed after Latin “abstrusa” = hidden, concealed. Referring to the concealment of the true identity of this species under the name C. sumatrana. 
  • Gemel, R.; G. Gassner & S. Schweiger 2019. Katalog der Typen der Herpetologischen Sammlung des Naturhistorischen Museums Wien – 2018. Ann. Naturhist. Mus. Wien, B 121: 33–248
  • Grismer, L. L., H. Kaiser & N. S. Yaakob 2004. A new species of Reed Snake of the genus Calamaria H. Boie, 1827, from Pulau Tioman, Pahang, West Malaysia. Hamadryad 28 (1&2): 1-6 - get paper here
  • Inger, R. F. & H. MARX 1965. The systematics and evolution of the oriental colubrid snakes of the genus Calamaria. Fieldiana: Zoology 49: 1-304. - get paper here
  • Inger, R.F. & Voris, H. K. 2001. The biogeographical relations of the frogs and snakes of Sundaland. Journal of Biogeography 28: 863-89 1
  • TEYNIÉ, ALEXANDRE; PATRICK DAVID, & ANNEMARIE OHLER 2010. Note on a collection of Amphibians and Reptiles from Western Sumatra (Indonesia), with the description of a new species of the genus Bufo. Zootaxa 2416: 1–43 - 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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