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Duberria rhodesiana BROADLEY, 1958

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Higher TaxaPseudoxyrhophiidae(Amplorhininae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common NamesE: Zimbabwean Slug Eater 
SynonymDuberria lutrix rhodesiana BROADLEY 1958: 215
Duberria lutrix rhodesiana — BROADLEY 1959
Duberria lutrix rhodesiana — BROADLEY 1962
Duberria (lutrix) rhodesiana — BROADLEY & BLAYLOCK 2013: 227
Duberria rhodesiana — WALLACH et al. 2014: 247 
DistributionNE Zimbabwe

Type locality: "Chishawasha, near Salisbury, Southern Rhodesia" [= Chishawasha, Mashonaland East Prov., NE Zimbabwe, 17°46'S, 31°13'E, elevation 1400 m].  
Reproductionviviparous (not imputed, fide Zimin et al. 2022) 
TypesHolotype: NMZB 916 (formerly NM/M 916), female; paratype: BMNH 1963.5. 
DiagnosisDIAGNosIS. This race differs from the typical form found farther south by having only one postocular, Duberria lutrix lutrix normally has two (Dr V. FitzSimons has very kindly given me the data for 32 South African snakes. Of these,26 have 2 postoculars; 2 have 2 on one side and 1 on the other; only 4 have 1 on both sides.). The new form also has a lower subcaudal count, 21-38 as against 25-51 for typical lutrix. It agrees with the latter and differs from D. lutrix shirana of Nyasaland and South Tanganyika in having a loreal shield present. It comes closest to the northern race D. lutrix abyssinica, differing only in having the anterior sublinguals slightly longer than the posterior, smaller average size and the bluish white ventrum with black markings (uniform plumbeus in abyssinica). (Broadley 1958)


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Comment 
EtymologyNamed after its occurence in (Southern) Rhodesia, now Zimbabwe. Rhodesia was named after British imperialist Cecil Rhodes (1853-1902), a British mining magnate and “ardent believer in British imperialism” (Wikipedia). 
References
  • Broadley, D. & Blaylock 2013. The Snakes of Zimbabwe and Botswana. Chimaira, Frankfurt, 387 pp. [book review in Sauria 35 (2): 59 and Copeia 2014: 388] - get paper here
  • Broadley, D.G. 1958. Serpents, Colubridae: Duberria lutrix rhxodesiana n. subsp. Occ. Pap. Natn. Mus. S. Rhodesia (Ser. B) 3: 215-216
  • Broadley, D.G. 1959. The herpetology of Southern Rhodesia. Part I--the snakes. Bull. Mus. Comp. Zool. Harvard 120 (1): 1-100 [reprint 1972] - get paper here
  • Broadley, D.G. 1962. On some reptile collections from the North-Western and North-Eastern Districts of Southern Rhodesia 1958-1961, with descriptions of four new lizards. Occ. Pap. Nat. Mus. South. Rhodesia 26 (B): 787-843
  • 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.
  • Zimin, A., Zimin, S. V., Shine, R., Avila, L., Bauer, A., Böhm, M., Brown, R., Barki, G., de Oliveira Caetano, G. H., Castro Herrera, F., Chapple, D. G., Chirio, L., Colli, G. R., Doan, T. M., Glaw, F., Grismer, L. L., Itescu, Y., Kraus, F., LeBreton 2022. A global analysis of viviparity in squamates highlights its prevalence in cold climates. Global Ecology and Biogeography, 00, 1–16 - get paper here
 
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