Sunder Lal Hora (22 May 1896 – 8 December 1955) was an Indian

ichthyologist Ichthyology is the branch of zoology devoted to the study of fish, including bony fish (Osteichthyes), cartilaginous fish (Chondrichthyes), and jawless fish (Agnatha). According to FishBase, 35,800 species of fish had been described as of March 2 ...

known for his

biogeographic Biogeography is the study of the distribution of species and ecosystems in geographic space and through geological time. Organisms and biological communities often vary in a regular fashion along geographic gradients of latitude, elevation, ...

theory on the affinities of Western Ghats and

Indomalayan The Indomalayan realm is one of the eight biogeographic realms. It extends across most of South and Southeast Asia and into the southern parts of East Asia. Also called the Oriental realm by biogeographers, Indomalaya spreads all over the Ind ...

fish forms.

Life

Hora was born at

Hafizabad Hafizabad ( Punjabi / ; ; ) is a city and capital of Hafizabad District located in Punjab, Pakistan. Hafizabad is an old settlement. In 327 BC, during Alexander's invasion of Punjab, the territory of the Sandal Bar was reported to be a well popu ...

in the Punjab (modern day

Pakistan Pakistan, officially the Islamic Republic of Pakistan, is a country in South Asia. It is the List of countries and dependencies by population, fifth-most populous country, with a population of over 241.5 million, having the Islam by country# ...

) on 2 May 1896. He schooled in Jullunder before college at Lahore. He met

Thomas Nelson Annandale Thomas Nelson Annandale CIE FRSE (15 June 1876, in Edinburgh – 10 April 1924, in Calcutta) was a British zoologist, entomologist, anthropologist, and herpetologist. He was the founding director of the Zoological Survey of India. Life The eld ...

who visited his college in Lahore in 1919 and was invited to the Zoological Survey of India. In 1921 he became in-charge of ichthyology and herpetology and in 1947 became Superintendent of the Z.S.I. and then Director after Baini Prashad moved to become an advisor to the government. He was elected a Fellow of the

Royal Society of Edinburgh The Royal Society of Edinburgh (RSE) is Scotland's national academy of science and letters. It is a registered charity that operates on a wholly independent and non-partisan basis and provides public benefit throughout Scotland. It was establis ...

in 1929. His proposers were

James Hartley Ashworth James Hartley Ashworth (2 May 1874 – 4 February 1936) was a British marine zoologist. Life See He was born on 2, May 1874, in Accrington in Lancashire, the only son of James Ashworth. He spent most of his early life in Burnley, attending t ...

, John Stephenson,

Charles Henry O'Donoghue Charles Henry O'Donoghue FRSE FZS (23 September 1885 – 28 November 1961) was an English zoologist who studied molluscs, a malacologist. His publications mostly deal with sea slugs and he also named a number of Bryozoans. A collection of over 70 ...

and

James Ritchie James Ritchie may refer to: * James Ritchie (rugby union) (1907–1942), Scottish international rugby union player * James Ritchie (naturalist) (1882–1958), President of the Royal Society of Edinburgh * James Ritchie (Massachusetts politician) (1 ...

. He died on 8 December 1955.

Works

The '' Satpura hypothesis'', a zoo-geographical hypothesis proposed by him that suggests that the central Indian

Satpura Range The Satpura Range, formerly also known as the Seeonee Hills, is a range of hills in central India. The range rises in eastern Gujarat running east through the border of Maharashtra and Madhya Pradesh and ends in Chhattisgarh. The range paralle ...

of hills acted as a bridge for the gradual migrations of Malayan fauna into the peninsula and the Western Ghats of India. He supported the theory on the basis of torrential fishes which had special suckers to hold onto rocks. Later research however pointed out that his examples made use of unrelated species showing common characters that were independently evolved, that is they were examples of

convergent evolution Convergent evolution is the independent evolution of similar features in species of different periods or epochs in time. Convergent evolution creates analogous structures that have similar form or function but were not present in the last comm ...

. Hora was also among the Indian pioneers of fish and wildlife conservation and pointed out the effect of dams on the migrations of riverine fishes and noted the poor design of

fish ladder A fish ladder, also known as a fishway, fish pass, fish steps, or fish cannon, is a structure on or around artificial and natural barriers (such as dams, locks and waterfalls) to facilitate diadromous fishes' natural migration as well as mov ...

s in Indian dams.

Taxon described by him

*See :Taxa named by Sunder Lal Hora

Taxon named in his honor

*The Hora razorbelly minnow or Hora's razorbelly minnow, ''Salmostoma horai'' 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), ...

ray-finned fish Actinopterygii (; ), members of which are known as ray-finned fish or actinopterygians, is a class of bony fish that comprise over 50% of living vertebrate species. They are so called because of their lightly built fins made of webbings of sk ...

in the genus ''

Salmostoma The razorbelly minnows are a group of fish in the genus ''Salmostoma'' found in southern Asia. They have been placed in the genus ''Salmophasia'' but this is regarded as a junior synonym of ''Salmostoma''. Species There are currently 13 recogn ...

''. *A genus of

ricefish The ricefishes are a family (biology), family (Adrianichthyidae) of small ray-finned fish that are found in fresh and brackish waters from India to Japan and out into the Malay Archipelago, most notably Sulawesi (where the Lake Poso and Lore Lin ...

, '' Horaichthys'' ("Hora's Fish"), was created in his honour and placed as a sole member of the family ''Horaichthyidae''. The species is now placed in the genus ''

Oryzias ''Oryzias'' is a genus of ricefishes native to fresh and brackish water in east and south Asia. Some species are widespread and the Japanese rice fish (''O. latipes'') is commonly used in science as a model organism, while others have very small ...

'' and the family is no longer considered valid. *The catfish genus ''

Horabagrus ''Horabagrus'' is a genus of catfish in the family Horabagridae endemic to rivers in the Western Ghats in Kerala and Karnataka, India. ''H. brachysoma'' is an important food fish and members of this genus can be found in the aquarium trade. T ...

'' is named after the Indian zoologist Sunder Lal Hora. ''Horabagrus'' is usually classified under the family

Bagridae The Bagridae are a family of catfish that are native to Africa ('' Bagrus'') and Asia (all other genera) from Japan to Borneo. It includes about 245 species. These fish are commonly known as naked catfishes or bagrid catfishes. Many large bagrid ...

, but there are disagreements. *An extinct genus of fossil

clupeid Clupeidae is a family of clupeiform ray-finned fishes, comprising, for instance, the herrings and sprats. Many members of the family have a body protected with shiny cycloid (very smooth and uniform) scales, a single dorsal fin, and a fusiform ...

, '' Horaclupea'', is named in honor of him.

References

Bibliography

* Hora, S. L. 1944. On the Malayan affinities of the freshwater fish fauna of Peninsular India, and its bearing on the probable age of the Garo-Rajmahal Gap. Proc. Natl. Inst. Sci. India, 10(2):423–439. * Hora, S. L. 1949. Satpura Hypothesis of the Distribution of the Malayan Fauna and Flora to Peninsular India. Proc. Natl. Inst. Sci. India, 15(8):309–314. {{DEFAULTSORT:Hora, Sunder Lal 20th-century Indian zoologists 1896 births 1955 deaths Naturalists from British India Fellows of the Royal Society of Edinburgh Indian ichthyologists 20th-century Indian biologists 20th-century Indian scientists Scientists from West Bengal