Platyplectrurus trilineatus

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Classis: Reptilia
Cladus: Eureptilia
Cladus: Romeriida
Subclassis: Diapsida
Cladus: Sauria
Infraclassis: Lepidosauromorpha
Superordo: Lepidosauria
Ordo: Squamata
Subordo: Serpentes
Superfamilia: Booidea

Familia: Uropeltidae
Genus: Platyplectrurus
Species: Platyplectrurus trilineatus
Name

Platyplectrurus trilineatus (Beddome, 1867)
References
Links

Uetz, P. & Hallermann, J. 2022. Platyplectrurus trilineatus. The Reptile Database. Accessed on 14 May 2020.
Srinivasulu, C., Srinivasulu, B. & Ganesan, S.R. 2013. IUCN: Platyplectrurus trilineatus (Data Deficient). The IUCN Red List of Threatened Species 2013: e.T178362A1531630. DOI: 10.2305/IUCN.UK.2013-1.RLTS.T178362A1531630.en

Vernacular names
English: Lined Thorntail Snake

Platyplectrurus trilineatus, commonly known as the Tri-striped shieldtail snake or the lined thorntail snake, is a species of uropeltid snake endemic to the Western Ghats of Southern India. Like most other shieldtail snakes, it is presumed to be a nocturnal, fossorial snake inhabiting evergreen forests. A very rare snake, about which nothing is known in terms of live colouration and natural history.[4]

Geographic range

It is found in southern India in the southern Western Ghats in the Anamalai Hills of Kerala and Tamil Nadu states.

Type locality of Plectrurus trilineatus: "Anamally forests; elevation 4,000 feet".

Type locality of Platyplectrurus bilineatus: "Madura Hills".
Description

Adults are reddish brown or brick-red dorsally, with three black stripes, which may be either continuous or interrupted.

The young are dark brown or black dorsally, with two or more narrow yellowish stripes, yellowish ventrally, with a brown dot on each ventral scale. Juveniles also have yellowish transverse markings behind the shielded part of the head, which may resemble an incomplete collar.

Adults may attain a total length of 40 cm (15+3⁄4 in).

Dorsal scales arranged in 15 rows at midbody (in 17 rows behind the head). Ventrals 163-175; subcaudals 8-16.

Snout broadly rounded. Rostral small, but visible from above. Frontal longer than broad. Supraocular much larger than the eye, longer than the prefrontal. One elongated temporal, which is 2/3 or 3/5 the length of the parietal. Ventrals nearly two times as broad as the contiguous scales. Dorsal scales of the tail smooth or a few of the terminal ones weakly bicarinate or tricarinate. Terminal scute with a transverse ridge which is less distinct in females.[5]
Footnotes

Srinivasulu, C.; Srinivasulu, B.; Ganesan, S.R. (2013). "Platyplectrurus trilineatus". IUCN Red List of Threatened Species. 2013: e.T178362A1531630. doi:10.2305/IUCN.UK.2013-1.RLTS.T178362A1531630.en. Retrieved 13 November 2021.
Boulenger, G.A. 1893. Catalogue of the Snakes in the British Museum (Natural History). Volume I., Containing the Families...Uropeltidæ... Trustees of the British Museum (Natural History). London. p. 165.
The Reptile Database. www.reptile-database.org.
Pyron R. A.; Ganesh S. R.; Sayyed A.; Sharma V.; Wallach V. & Somaweera R. (2016). "A catalogue and systematic overview of the shield-tailed snakes (Serpentes: Uropeltidae)". Zoosystema. 38 (4): 453–506. doi:10.5252/z2016n4a2. S2CID 54656055.

Boulenger, G.A. 1893. Catalogue of the Snakes in the British Museum (Natural History). Volume I., Containing the Families...Uropeltidae... Trustees of the British Museum (Natural History). London. pp. 165-166, Plate XI, figures 1, 1a., 1b., 1c.