''Polypedates bengalensis'', the brown blotched Bengal tree frog, is a

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

frog A frog is any member of a diverse and largely semiaquatic group of short-bodied, tailless amphibian vertebrates composing the order (biology), order Anura (coming from the Ancient Greek , literally 'without tail'). Frog species with rough ski ...

in the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Rhacophoridae The Rhacophoridae are a family of frogs in tropical sub-Saharan Africa, South India and Sri Lanka, Japan, northeastern India to eastern China and Taiwan, south through the Philippines and Greater Sundas, and Sulawesi. They are commonly known as ...

. It is

endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...

West Bengal West Bengal (; Bengali language, Bengali: , , abbr. WB) is a States and union territories of India, state in the East India, eastern portion of India. It is situated along the Bay of Bengal, along with a population of over 91 million inhabi ...

India India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since ...

. It has been observed between 7 and 13 meters above sea level.

Etymology

The

specific name Specific name may refer to: * in Database management systems, a system-assigned name that is unique within a particular database In taxonomy, either of these two meanings, each with its own set of rules: * Specific name (botany), the two-part (bino ...

, ''bengalensis'', is a reference to the type locality of the species located in the state of West Bengal, India.

Distribution

The species, native to eastern India, was first described from Khordanahala,

South 24 Parganas South 24 Parganas (Pron: pɔrɡɔnɔs; abbr. 24 PGS (S)), or sometimes South Twenty Four Parganas and Dakshin 24 Parganas, is a district in the Indian state of West Bengal, headquartered in Alipore previously, with its Zilla Parishad now in Ba ...

and Badu,

North 24 Parganas North 24 Parganas (abv. 24 PGS (N)) or sometimes North Twenty Four Parganas is a district in southern West Bengal, of eastern India. North 24 Parganas extends in the tropical zone from latitude 22° 11′ 6″ north to 23° 15′ 2″ north and ...

in West Bengal. A while after the species was recorded, it was also reported in

Odisha Odisha (), formerly Orissa (List of renamed places in India, the official name until 2011), is a States and union territories of India, state located in East India, Eastern India. It is the List of states and union territories of India by ar ...

, India and southwestern

Bangladesh Bangladesh, officially the People's Republic of Bangladesh, is a country in South Asia. It is the List of countries and dependencies by population, eighth-most populous country in the world and among the List of countries and dependencies by ...

Description

The frog is mid-sized; males are 4.8–5.4 cm in length, and females about 7.2 cm. It is yellowish-brown to greenish-brown in colour. Its body is marked by a series of six to nine dark brown blotches. Its digits lack webbing. There is no dermal fold on forearm. The males possess paired vocal sacs.

References

{{Taxonbar, from=Q73860984 Amphibians described in 2019 bengalensis