Natriciteres bipostocularis BROADLEY, 1962
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Higher Taxa | Colubridae (Natricinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) |
Subspecies | |
Common Names | E: Southwestern Forest Marsh Snake |
Synonym | Natriciteres olivacea bipostocularis BROADLEY 1962 Neusterophis fuliginoides — DE WITTE 1953 Natriciteres olivacea uluguruensis BROADLEY & PITMAN 1960 (not LOVERIDGE 1958) Natriciteres variegata bipostocularis — BROADLEY 1966 Natriciteres bipostocularis — HAAGNER et al. 2000 Natriciteres bipostocularis — BROADLEY et al. 2003 Natriciteres bipostocularis — BROADLEY et al. 2004 Natriciteres bipostocularis — BRANCH 2008 Natriciteres bipostocularis — WALLACH et al. 2014: 474 |
Distribution | Zambia, Democratic Republic of the Congo (Zaire: Katanga), C Angola; elevation 1320-1585 m. |
Reproduction | |
Types | Holotype: NMZB (also as NMSR) 3524 (Natural History Museum of Zimbabwe, Bulawayo) |
Diagnosis | Description. Preocular 1 (rarely 2); postoculars 2 (3 on one side of one Angola snake); temporals 1+2; upper labials 8 (rarely 7 or 9), the fourth and fifth (rarely third and fourth or fifth and sixth) entering the orbit; lower labials 8 (rarely 9) the first four in contact with the anterior sublinguals; dorsal scales smooth in 17 rows anteriorly, reducing to 15 posteriorly by fusion of rows III and IV (rarely II+HI) between ventrals 59-85; ventrals 130-138 in males, 136-140 in females; anal divided; subcaudals 65-78 in males, 64-70 in females (from BROADLEY 1966). Coloration. Similar to N. v. sylvatica, but never with a well-defined pale nuchal collar. Zambian specimens show no trace of this marking. The dark coloration at the ends of the ventrals tends to extend along the basal edges of these scutes (from BROADLEY 1966). |
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