Rhabdophis helleri (SCHMIDT, 1925)
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Higher Taxa | Colubridae (Natricinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) |
Subspecies | |
Common Names | E: Heller’s Red-necked Keelback G: Heller-Rothals-Wassernatter Chinese: 红脖颈槽蛇 |
Synonym | Natrix helleri SCHMIDT 1925: 3 Natrix subminiata helleri — MELL 1931 [1929] Natrix subminiata helleri — BOURRET 1934: 130 Rhabdophis subminiatus helleri — BOURRET 1935: 4 Natrix subminiata helleri — RENDAHL 1937 Rhabdophis subminiatus var. helleri — DEUVE 1961: 14 Rhabdophis subminiata helleri — TAYLOR 1965 Rhabdophis subminiatus helleri — ZHAO et al. 1986 Rhabdophis subminiatus helleri — NGUYEN et al. 2009 Rhabdophis helleri — LIU et al. 2021 Rhabdophis helleri — DAVID & VOGEL 2021 |
Distribution | China (Yunnan, Guangxi, Guangdong, Fujian, Hong Kong, Sichuan, Guizhou), N Vietnam, Myanmar, India (Nagaland, Manipur, Meghalaya, Assam ?, Mizoram, Sikkim; Arunachal Pradesh [A. Captain, pers. comm.], Tripura), Bhutan, Bangladesh, Nepal Type locality: Tengyueh, 5500 feet elevation, Province of Yunnan, China, 25°01'N, 98°30'E. |
Reproduction | oviparous |
Types | Holotype: AMNH 20149, paratype: FMNH |
Diagnosis | Diagnosis. Closely allied to Natrix subminiata of Java and southeastern Asia, from which it is distinguished by a higher number of ventral scales,163-172,compared with132-157 in subminiata as here restricted. Dorsal scale rows 19, the outer smooth, the median rows sharply keeled; ventrals 163-172; anal divided; caudals 75-86; upper labials 7-9, three entering the eye; a single preocular; three postoculars; temporals 2-2; general color uniform olive, with reddish markings on the neck, chiefly confined to the skin between the scales (Schmidt 1925: 3). 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 6411 characters) are available for collaborators and contributors. Please contact us for details. |
Comment | Venomous. Can inflict serious coagulopathic envenoming but, unlike its congener R. tigrinus, has not caused any human fatalities (Weinstein 2017). Behavior: diurnal. Distribution: For a map see David & Vogel 2021: 110 (Fig. 9). |
Etymology | Named after Edmund Heller (1875-1939), American zoologist and ornithologist. |
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