Collared reed snake

Collared reed snake
	Calamaria pavimentata
Conservation status
	; Least Concern (IUCN 3.1)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	Squamata
Suborder:	Serpentes
Family:	Colubridae
Genus:	Calamaria
Species:	C. pavimentata
Binomial name
	Calamaria pavimentata; Duméril, Bibron & Duméril, 1854

The collared reed snake (Calamaria pavimentata) is a species of colubrid snake found in Asia. In Japan, it is also called Miyara's collared snake.

Description

The rostral is as deep as it is broad, and it is well visible from above. The frontal is longer than broad, shorter than the parietals, and 2.0 to 2.5 times as broad as the supraocular. C. pavimentata has one preocular scale and one postocular scale with four upper labials (the second and fourth are the largest, with the second and third entering the eye). The first pair of lower labials form a suture behind the mental scale. There are two pairs of chin shields, each pair in contact with the other. The scales are in 13 rows. There are 140–182 ventral scales, the anal scale is entire, and it has 13–27 subcaudal scales, and a pointed tail.

The collared reed snake is reddish-brown above, with five dark longitudinal lines or series of spots. The nape is dark brown and separated from the back by a yellow collar. A pair of yellow spots is seen at the base and another at the end of the tail. The lower parts show a uniform yellow with a dark line along the tail in the Burmese and Javan specimens, obscured with brown mottlings or brown with lighter borders in C. p. siamensis.^[2]

The total length of the body is 12.5 in (32 cm) with a 0.6-in (1.5-cm) tail.

Distribution

This snake can be found in India (Assam), Myanmar, Thailand, Laos, Cambodia, Vietnam, west Malaysia (including Pulau Tioman), Indonesia, south and southwest China (including Hainan), Taiwan, and Japan (Ryukyu Islands).

Type locality: Java, Indonesia

Notes

^ Wogan, G.; Grismer, L. (2012). "Calamaria pavimentata". IUCN Red List of Threatened Species. 2012: e.T192211A2056198. doi:10.2305/IUCN.UK.2012-1.RLTS.T192211A2056198.en. Retrieved 12 November 2021.
^ Boulenger, G. A. 1890. Fauna of British India. Reptilia and Batrachia.

References

Duméril, A.M.C., G. Bibron & A.H.A. Duméril 1854 Erpétologie générale ou Histoire Naturelle complète des Reptiles. Vol. 7 (partie 1). Paris, xvi + 780 S.
Günther, A. 1896 Annuaire Mus. Zool. St. Pétersbourg, I: 205
Inger, R. F. & H. Marx 1965 The systematics and evolution of the oriental colubrid snakes of the genus Calamaria. Fieldiana Zool., Chicago, 49:1-304.

External links

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[iucn_status_12_November_2021-1] Wogan, G.; Grismer, L. (2012). "Calamaria pavimentata". IUCN Red List of Threatened Species. 2012: e.T192211A2056198. doi:10.2305/IUCN.UK.2012-1.RLTS.T192211A2056198.en. Retrieved 12 November 2021.

[2] Boulenger, G. A. 1890. Fauna of British India. Reptilia and Batrachia.

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