''Tylototriton verrucosus'' is a species of newt found in the

Indian subcontinent The Indian subcontinent is a list of the physiographic regions of the world, physiographical region in United Nations geoscheme for Asia#Southern Asia, Southern Asia. It is situated on the Indian Plate, projecting southwards into the Indian O ...

and

Southeast Asia Southeast Asia, also spelled South East Asia and South-East Asia, and also known as Southeastern Asia, South-eastern Asia or SEA, is the geographical United Nations geoscheme for Asia#South-eastern Asia, south-eastern region of Asia, consistin ...

. Common names include: Himalayan newt, crocodile newt, crocodile salamander, Himalayan salamander, red knobby newt.

Description

This newt can reach a length of 20 cm. The tongue is small and is free on the sides and only slightly towards its base. The teeth on the palate are in two oblique rows that meet at the front of the mouth. The skull has a thick, bony fronto-squamosal arch, a feature of all salamanders. They have five toes and the tail is flattened to aid swimming. The head is wide and the snout is short and the head has three prominent bony ridges with pores, one along the center and two along the back of the sides of the heads (the parietal ridge). There are no lobes on the lips. The body is 3 to 3.5 times as long as the head. There is no crest running along the dorsal midrib as in some newts but there is a prominent vertebral ridge with a series of knobs formed from the expansion of the neural processes of the dorsal vertebral bones. There is a series of 15 or 16 knob-like porous glands along the sides with the last three behind the leg. The legs are moderately long with the fingers and toes within webbing but are slightly flattened. The tail is at least as long as the head and body and is flattened to help in swimming. The tail has an upper and lower crest which meet at the tip of the tail. The anal opening is a longitudinal slit, and its borders are not raised. The skin is rough and the parotoid glands are large. There is a strong fold on the chin. The entire newt is uniformly blackish brown, slightly paler on the lips, snout, chin, throat, and under surface of limbs. The lower edge of the tail is orange-yellow. During the breeding season in May and June these behavioural differences between the sexes. Courtship and mating occur at night and as in many salamanders involves the male moving around it while bending, pushing and curving its tail.

Diet

They feed on spiders, worms, millipedes, scorpions, molluscs and a range of insects.

Range

''T. verrucosus'' is found in mountains of

Yunnan Yunnan , () is a landlocked Provinces of China, province in Southwest China, the southwest of the People's Republic of China. The province spans approximately and has a population of 48.3 million (as of 2018). The capital of the province is ...

, Kakhyen Hills,

Sikkim Sikkim (; ) is a state in Northeastern India. It borders the Tibet Autonomous Region of China in the north and northeast, Bhutan in the east, Province No. 1 of Nepal in the west and West Bengal in the south. Sikkim is also close to the Siligur ...

Manipur Manipur () ( mni, Kangleipak) is a state in Northeast India, with the city of Imphal as its capital. It is bounded by the Indian states of Nagaland to the north, Mizoram to the south and Assam to the west. It also borders two regions of Myanm ...

and Northern

Burma Myanmar, ; UK pronunciations: US pronunciations incl. . Note: Wikipedia's IPA conventions require indicating /r/ even in British English although only some British English speakers pronounce r at the end of syllables. As John Wells explai ...

. Preservation efforts are on in its habitat in

Darjeeling Darjeeling (, , ) is a town and municipality in the northernmost region of the Indian state of West Bengal. Located in the Eastern Himalayas, it has an average elevation of . To the west of Darjeeling lies the easternmost province of Nepal, ...

(India), where it breeds in good numbers. In Thailand, it is only known from Doi Chang in Chiang Rai Province. Other populations in

Northern Northern may refer to the following: Geography * North, a point in direction * Northern Europe, the northern part or region of Europe * Northern Highland, a region of Wisconsin, United States * Northern Province, Sri Lanka * Northern Range, a ra ...

and

Northeastern The points of the compass are a set of horizontal, radially arrayed compass directions (or azimuths) used in navigation and cartography. A compass rose is primarily composed of four cardinal directions—north, east, south, and west—each se ...

Thailand, as well as populations in Laos and Vietnam, were described in 2013 and 2015 as the new species '' T. anguliceps'', '' T. panhai'' and '' T. uyenoi''.

References

External links

Species account

In captivity
{{Taxonbar, from=Q1499194 verrucosus Amphibians of Myanmar Amphibians of India Amphibians of Nepal Amphibians of Thailand Amphibians of Vietnam Amphibians described in 1871