Dipsas neuwiedi

Dipsas neuwiedi
Conservation status
	; Least Concern (IUCN 3.1)
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	Squamata
Suborder:	Serpentes
Family:	Colubridae
Genus:	Dipsas
Species:	D. neuwiedi
Binomial name
	Dipsas neuwiedi; (Ihering, 1911)
Synonyms
	Cochliophagus mikani neuwiedi; Ihering, 1911; Sibynomorphus neuwiedi; (Ihering, 1911); Sibynomorphus mikanii fasciatus; Amaral, 1930;

Last updated February 02, 2026

Dipsas neuwiedi, also known commonly as Neuwied's tree snake and dormideira-cinzenta (gray sleepyhead) in Brazilian Portuguese, is a species of snake in the subfamily Dipsadinae of the family Colubridae. The species is endemic to Brazil.^[2]

Etymology

The specific name, neuwiedi, is in honor of German naturalist Prince Maximilian of Wied-Neuwied.^[3]^: 189

Description

A medium-sized species of snake, Dipsas neuwiedi may attain a snout-to-vent length (SVL) of 66 cm (26 in).^[1]

Geographic distribution

Dipsas neuwiedi is found in southeastern Brazil.^[1]^[2]

Habitat

The preferred natural habitats of Dipsas neuwiedi are forest and savanna, at elevations from sea level to 1,450 m (4,760 ft).^[1]

Behavior

Dipsas neuwiedi is arboreal and nocturnal.^[1]^[2]

Diet

Dipsas neuwiedi preys upon snails and slugs.^[1]^[2]

Reproduction

Dipsas neuwiedi is oviparous.^[1]^[2] Clutch size is about eight eggs.^[1]

References

1 2 3 4 5 6 7 8 Silveira AL, Prudente AL da C, Argôlo AJS, Abrahão CR, Nogueira C de C, Strüssmann C, Loebmann D, Barbo FE, Franco FL, Costa GC, de Moura GJB, Zaher H el D, Borges-Martins M, Martins MRC, Oliveira ME, Hoogmoed MS, Marques OAV, Passos PGH, Bérnils RS, Kawashita-Ribeiro RA, Sawaya RJ, Guedes da Costa TB (2019). "Dipsas neuwiedi ". In: The IUCN Red List of Threatened Species 2019. Accessed on 31 January 2026.
1 2 3 4 5 6 Dipsas neuwiedi at the Reptarium.cz Reptile Database . Accessed 13 November 2014.
↑ Beolens, B.; Watkins, M.; Grayson, M. (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. pp. xiii + 296. ISBN 978-1-4214-0135-5.

Arruda, Larissa F.; Folly, Henrique; Guedes, Jhonny J.M.; Feio, Renato N. (2017). "Sibynomorphus neuwiedi (Neuwiedi's [sic] Snail-eating Snake). Chromatic Anomaly". Herpetological Review. 48 (4): 867.
Barbosa, Vanessa do Nascimento; Silva Amaral, Jéssica Monique da; Santos, Letícia Morais dos; Rodrigues França, Frederico Gustavo (2025). "Dipsas neuwiedi (Neuwied's Tree Snake). Reproduction". Herpetological Review. 55 (2): 279–280.
Freiberg, M. (1982). Snakes of South America. Hong Kong: T.F.H. Publications. ISBN 0-87666-912-7. 189 pp. (Sibynomorphus mikanii neuwiedi, p. 110).
Ihering, R. (1911). "As Cobras do Brasil ". Revista do Museu Paulista. 8: 273–379. (Cochliophagus mikani neuwiedi, new subspecies. p. 333). (in Portuguese).

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[iucn-1] 1 2 3 4 5 6 7 8 Silveira AL, Prudente AL da C, Argôlo AJS, Abrahão CR, Nogueira C de C, Strüssmann C, Loebmann D, Barbo FE, Franco FL, Costa GC, de Moura GJB, Zaher H el D, Borges-Martins M, Martins MRC, Oliveira ME, Hoogmoed MS, Marques OAV, Passos PGH, Bérnils RS, Kawashita-Ribeiro RA, Sawaya RJ, Guedes da Costa TB (2019). "Dipsas neuwiedi ". In: The IUCN Red List of Threatened Species 2019. Accessed on 31 January 2026.

[RDB-2] 1 2 3 4 5 6 Dipsas neuwiedi at the Reptarium.cz Reptile Database . Accessed 13 November 2014.

[3] Beolens, B.; Watkins, M.; Grayson, M. (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. pp. xiii + 296. ISBN 978-1-4214-0135-5.

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