Images attached to GBIF records (field photographs), from . Open licences; click for the record.
Apiaká Keelback
Helicops apiaka Kawashita-Ribeiro, Ávila & Morais, 2013
Also calledCobra-D’água (por) · Cobra-d'água (por)
First described in: Kawashita-Ribeiro, R. A., & Robson Waldemar Ávila, a. D. H. M. A New Snake of the Genus Helicops Wagler, 1830 (Dipsadidae, Xenodontinae) from Brazil.
Descriptions from checklists and floras indexed by GBIF
distribution
Distribution. Endemic to Brazil (Plt. 277 A). Restricted to southeastern Amazonia (Plt. 277 A) at low elevations (Plt. 277 B). Observed in the field in streams and rivers in forest (Kawashita-Ribeiro et al., 2013).
Atlas of Brazilian Snakes: Verified Point-Locality Maps to Mitigate the Wallacean Shortfall in a Megadiverse Snake Fauna
materials_examined
Type locality. Rio Teles Pires, Paranaíta, state of Mato Grosso, Brazil.
Atlas of Brazilian Snakes: Verified Point-Locality Maps to Mitigate the Wallacean Shortfall in a Megadiverse Snake Fauna
Diagnosis
According to the information given in Kawashita-Ribeiro et al. (2013), H. apiaka can be distinguished from all its congeners, except H. angulatus by the following combination of characteristics: absent intergenials, subcaudal keels present and 21–22 dorsal scale rows at mid-body (compared to 19 in H. gomesi ). From H. angulatus, it differs by having 21–24 dorsal scale rows at anterior body, 21–22 at mid-body and 17–19 at posterior body (versus 19–21/19–20/17–19 in H. angulatus ) and by having 118–127 ventral scales in males and 124–132 in females (versus 105–123 in male and 109–123 in female H. angulatus ), as well as hemipenes morphology. The specimens examined in Kawashita-Ribeiro et al. (2013) originated from neighbouring areas to the H. apiaka locations. Our own examinations revealed that males of H. angulatus possess 103–119 ventrals in males and 104–125 in females. There is considerable overlap, especially between female specimens of the two species, thus excluding this character for identification. Besides that, we detected two specimens displaying morphology characters of H. angulatus (colouration, subcaudal keels, remaining pholidosis), but showing consid
Distribution and identification of the species in the genus Helicops Wagler, 1830 (Serpentes, Colubridae, Xenodontinae)
Distribution
The only known specimens of H. apiaka are from northern Mato Grosso and southern Pará (Fig. 1b).
Distribution and identification of the species in the genus Helicops Wagler, 1830 (Serpentes, Colubridae, Xenodontinae)
Where it has been recorded
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
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In the stacks
Searching the stacks…
Every page naming Helicops apiaka in the Biodiversity Heritage Library →
From the GBIF Backbone Taxonomy and occurrence records (GBIF.org), with Wikipedia and the Source Library. GBIF species 8194308.