Pareas nuchalis (BOULENGER, 1900)
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Pareas nuchalis
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| Higher Taxa | Pareidae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) |
| Subspecies | |
| Common Names | E: Barred slug-eating snake |
| Synonym | Amblycephalus nuchalis BOULENGER 1900: 185 Amblycephalus nuchalis — DE ROOIJ 1917: 277 Pareas nuchalis – MALKMUS 1996 Pareas nuchalis — MALKMUS et al. 2002 Pareas nuchalis — WALLACH et al. 2014: 537 Pareas (Pareas) nuchalis — POYARKOV et al. 2022: 62 |
| Distribution | Indonesia (Borneo), Malaysia (Borneo, Sarawak) Type locality: Matang, Kidi District, Sarawak. |
| Reproduction | oviparous |
| Types | Holotype: SMK, a 490 mm specimen (A. Everett?), Sarawak Museum, Kuching, Sarawak, East Malaysia |
| Diagnosis | Diagnosis (n= 9): Pareas nuchalis differs from other members of the genus Pareas by the following combination of morphological characters: maximal total length up to 678 mm; anterior pair of chin shields longer than broad; loreal not contacting the eye; prefrontal in contact with the eye; 1–3 suboculars; 1–2 postoculars; temporals generally 3 + 4 or 3 + 3; one to three median vertebral scale rows slightly enlarged; 7–8 supralabial scales; generally 7 (rarely 6 or 8) infralabials; 15 dorsal scale rows at midbody, all totally smooth; 201–220 ventrals; 102–120 subcaudals, all divided; dorsum tan to light brown with weak dark-brown vertebral spots and 61–78 distinct transverse dark-brown bands (Figs. 16 and 17); upper postorbital stripes thick, black, bifurcating posterior to the secondary temporals, forming a vertical black bar to the mouth angle; upper postorbital stripes contacting each other on the nuchal area forming a large black ring-shaped blotch (Fig. 17); lower postorbital stripes thick, black, reaching the anterior part of SL6, often continuing to the lower jaw and chin; belly yellowish immaculate or with sparce brown dusting (Figs. 16 and 17); iris in life whitish with brownish speckles and veins getting denser around the pupil (Fig. 17) (Boulenger, 1900; Stuebing, Inger & Lardner, 2014; our data). Unfortunately we had to temporarily remove additional information as this was scraped by multiple AI companies who sell that data to their customers. These details, e.g. detailed descriptions or comparisons (about 1645 characters) are available for collaborators and contributors. Please contact us for details. |
| Comment | Habitat: partly arboreal (Harrington et al. 2018). |
| Etymology | Named after the Latin adjective in nominative singular meaning “nuchal” and was given in reference to the characteristic black ring-shaped spot in the nuchal area in this species. |
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