Homalopsidae-Check list snakes northern Thailand

Homalopsidae, the family of mud snakes

• Enhydris bocourti
Enhydris enhydris, the Rainbow Water Snake
Enhydris jagorii (no picture), Jagor’s Water Snake

Enhydris plumbea, the Yellow-bellied or Plumbeous Water Snake. Little snake (max. length 60 cm) common in well-watered lowlands throughout the northern region. Upper side brownish or greenish-bronze. Belly pale yellow or dark yellow. A. A specimen from Mueang District, Chiang Mai. B. DOR-specimen from Loei Province, Northeast-Thailand. C. An adult specimen from Mueang Chiang Mai preying on a frog.
Enhydris subtaeniatus

Homalopsis mereljcoxi, the Puff-faced Water Snake. These brown or dark grey snakes can grow to about 100 cm. They have many irregularly-shaped lighter crossbars (A, C, D). The pattern on the upper side of the head resembles a human skull (E). The belly is white with widely spaced black dots in the corners of the ventral shields. It occurs in marshlands, ditches, and wet rice fields in the southern part of the northern region. A. DOR from a swamp in Uttaradit’s Phichai District. B. Ventral view of the same specimen as in A. C. A tangle of (young) specimens in a basin in Bangkok’s Snake Farm. D. An captive individual in the Mae Rim Snake Farm, Chiang Mai. E. Head of the specimen in D.