Hypnale zara

Hypnale zara
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Viperidae
Genus: Hypnale
Species:
H. zara
Binomial name
Hypnale zara
Gray, 1849
Synonyms
  • Trigonocephalus zara
    Gray, 1849 (part)
  • Hypnale zara
    Maduwage et al., 2009.

Hypnale zara, the lowlands hump-nosed pit viper, is a venomous pit viper species endemic to Sri Lanka. It is distinguished from Hypnale nepa by variably colored body and less upcurved snout. No subspecies are currently recognized.[2]

Description

Hypnale zara has 10โ€“19 minute scales extending from wart-like protuberances on the snout tip. Additionally, there are 18โ€“39 heterogeneous small scales in the internasal to prefrontal regions, along with six scales around the eye and seven to eight supralabials. The costal scales are keeled, and there are 134โ€“157 ventrals. Subcaudals may range from 34 to 51.[3]

Dorsum color ranges from yellowish brown to dark brown, sometimes deep red. Two rows of distinct sub-oval or sub-triangular blotches meet in the vertebral region. There is a dark stripe across the eye and cheek. Venter is lighter than dorsum, sometimes light ash-gray.[3]

Reproduction

Hypnale zara is ovoviviparous.[4]

References

  1. ^ "Hypnale zara". IUCN Red List of Threatened Species.
  2. ^ "Hypnale zara (Gray, 1849)". Catalogue of Life. Species 2000: Leiden, the Netherlands. Retrieved 23 March 2022.
  3. ^ a b "Hypnale zara (Gray, 1849)". gbif.
  4. ^ "Hypnale zara". The Reptile Database.