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Dipsadoboa shrevei (LOVERIDGE, 1932)

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Higher TaxaColubridae, Colubrinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Common NamesE: Shreve's (Nocturnal) Tree Snake 
SynonymCrotaphopeltis shrevei LOVERIDGE 1932: 83
Dipsadoboa shrevei — LAURENT 1951: 210
Crotaphopeltis werneri shrevei — LOVERIDGE 1959
Dipsadoboa shrevei shrevei — RASMUSSEN 1986: 59
Dipsadoboa shrevei — BROADLEY 1998
Dipsadoboa shrevei shrevei — BROADLEY & HOWELL 1991: 31
Dipsadoboa shrevei — BROADLEY et al. 2003: 210
Dipsadoboa shrevei — WALLACH et al. 2014: 231
Dipsadoboa cf. shrevei shrevei — CONRADIE et al. 2016
Dipsadoboa shrevei — SPAWLS et al. 2018: 529 
DistributionAngola, east through S Zaire and N Zambia, Mozambique

Type locality: Missao di Dondi, Bela Vista, Angola.  
TypesHolotype: MCZ 32471 
DiagnosisDiagnosis (shrevei): A moist savanna species of Dipsadoboa which occurs between 3°-15°S in south- central Africa and which has the following character combination: dorsals in 19-19-15 (rarely 14) rows; ventrals 203-219 and 199-212, males and females, respectively; anal entire (or rarely divided); subcaudals 74-91 and 75-96, males and females, respective- ly ; 11-16 + II ( + 1 in 32 % of the specimens) maxillary teeth; juveniles pale without any distinct markings, becoming darker (brownish, grey, or blue-black) with increasing size.

Diagnosis (kageleri): A dry savanna form of Dipsadoboa which is apparently endemic to the Kilimanjaro area and which has the following character combination: dorsals in 17-17-13 rows; ventrals 191 and 195, male and female, respectively; anal divided; subcaudals 72 + x and 76 + x, male and female, respectively; 14 + II + 1 maxillary teeth, color similar to the adult color of the nominate subspecies.
CommentDistribution: Possibly occurs in the Congo. Not in Tanzania fide Branch et al. 2019.

Subspecies: Dipsadoboa shrevei kageleri (UTHMÖLLER 1939) has been elevated to full species by Branch et al. 2019.

Synonymy: mainly after Rasmussen 1986.

Habitat: fully arboreal (Harrington et al. 2018). 
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Berry, P. S. M. 1970. A Note on Shreve's Tree Snake Dipsadoboa shrevei in Zambia. J. Herp. Assoc. Africa (6): 20-21 - get paper here
  • BRANCH, WILLIAM R.; JULIAN BAYLISS, GABRIELA B. BITTENCOURT-SILVA, WERNER CONRADIE, HANLIE M. ENGELBRECHT, SIMON P. LOADER, MICHELE MENEGON, CRISTÓVÃO NANVONAMUQUITXO, KRYSTAL A. TOLLEY 2019. A new species of tree snake (Dipsadoboa, Serpentes: Colubridae) from ‘sky island’ forests in northern Mozambique, with notes on other members of the Dipsadoboa werneri group. Zootaxa 4646 (3): 541–563 - get paper here
  • Broadley, D. G. & HOWELL, K. M. 1991. A check list of the reptiles of Tanzania, with synoptic keys. Syntarsus 1: 1—70
  • Broadley, D.G. 1958. Occurance of Dipsadoboa shrevei in Northern Rhodesia. J. Herp. Assoc. Rhodesia 2: 5 - get paper here
  • Broadley, D.G. 1991. The Herpetofauna of Northern Mwinilunga Distr., Northw. Zambia. Arnoldia Zimbabwe 9 (37): 519-538
  • Broadley, D.G. 1998. The reptilian fauna of the Democratic Republic of the Congo (Congo-Kinshasa). In: Schmidt, K.P. and Noble, G.K., Contributions to the Herpetology of the Belgian Congo... [reprint of the 1919 and 1923 papers]. SSAR Facsimile reprints in Herpetology, 780 pp.
  • Broadley, D.G.; Doria, C.T. & Wigge, J. 2003. Snakes of Zambia. An Atlas and Field Guide. Edition Chimaira, Frankfurt, 280 pp. [review in Sauria 26 (3): 21]
  • Broadley, Donald G. and F. P. D. Cotterill. 2004. The reptiles of southeast Katanga, an overlooked 'hot spot'. [Congo]. African Journal of Herpetology 53 (1): 35-61. - get paper here
  • Chifundera, K. 1990. Snakes of Zaire and their bites. Afr. Stud. Monogr. (Kyoto) 10(3): 137-157.
  • Chippaux, Jean-Philippe & Kate Jackson 2019. Snakes of Central and Western Africa. Johns Hopkins University Press, 448 pp. - get paper here
  • Haagner,G.V.; Branch,W.R. & Haagner,A.J.F. 2000. Notes on a collection of reptiles from Zambia and adjacent areas of the Democratic Republic of the Congo. Annals of the Eastern Cape Museum 1: 1 – 25
  • Harrington, Sean M; Jordyn M de Haan, Lindsey Shapiro, Sara Ruane 2018. Habits and characteristics of arboreal snakes worldwide: arboreality constrains body size but does not affect lineage diversification. Biological Journal of the Linnean Society 125 (1): 61–71 - get paper here
  • Loveridge, A. 1932. New opisthoglyphous snakes of the genera Crotaphopeltis and Trimerorhinus from Angola and Kenya Colony. Proc. Biol. Soc. Washington 45: 83-86 - get paper here
  • Marques, Mariana P.; Luis M. P. Ceríaco , David C. Blackburn , and Aaron M. Bauer 2018. Diversity and Distribution of the Amphibians and Terrestrial Reptiles of Angola -- Atlas of Historical and Bibliographic Records (1840–2017). Proc. Cal. Acad. Sci. (Ser. 4) 65: 1-501 (Supplement II)
  • Rasmussen,J.B. 1986. On the taxonomic status of Dipsadoboa werneri (BOULENGER), D. shrevei (LOVERIDGE), and Crotaphopeltis hotamboiea kageleri UTHMÖLLER (Boiginae, Serpentes). Amphibia-Reptilia 7: 51-73 - get paper here
  • Spawls, S.; Howell, K.; Drewes, R.C. & Ashe, J. 2002. A field guide to the reptiles of East Africa. Academic Press, 543 pp. [reviews in HR 34: 396 and Afr. J. Herp. 51; 147] - get paper here
  • Spawls, Steve; Kim Howell, Harald Hinkel, Michele Menegon 2018. Field Guide to East African Reptiles. Bloomsbury, 624 pp. - get paper here
  • Trape, J.F. & R. ROUX-ESTÈVE 1995. Les serpents du Congo: liste commentée et clé de détermination. Journal of African Zoology 109 (1): 31-50
  • Uthmöller,W. 1939. Über eine neue Rasse von Crotaphopeltis hotamboiea. Zool. Anz. 125: 108-112
  • 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.
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