# Johan Conrad van Hasselt

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Dutch zoologist and botanist

Johan Conrad van Hasselt

**Johan Conrad van Hasselt** (occasionally **Johan Coenraad van Hasselt**; 24 June 1797 in [Doesburg](/source/Doesburg) – 8 September 1823), was a [Dutch](/source/Dutch_people) [medical doctor](/source/Medical_doctor), [zoologist](/source/Zoologist), [botanist](/source/Botanist) and [mycologist](/source/Mycologist).

Conrad van Hasselt studied medicine at the [University of Groningen](/source/University_of_Groningen).

In 1820 he went on an expedition to the island of [Java](/source/Java), then part of the colonial Dutch East Indies, with his friend [Heinrich Kuhl](/source/Heinrich_Kuhl), to study the fauna and flora of the island. They sailed from [Texel](/source/Texel) on 11 July, stopping at [Madeira](/source/Madeira), the [Cape of Good Hope](/source/Cape_of_Good_Hope) and [Cocos Island](/source/Cocos_(Keeling)_Islands) and arriving in [Batavia](/source/Batavia%2C_Dutch_East_Indies) in December 1820. Kuhl died after eight months, van Hasselt continued the work for another two years before dying (like Kuhl) of disease and exhaustion. This followed a journey to [Bantam](/source/Bantam_(city)). They sent the [Museum of Leiden](/source/Rijksmuseum_van_Natuurlijke_Historie) 200 skeletons, 200 skins of mammals from 65 species, 2,000 bird skins, 1,400 fish, 300 reptiles and amphibians, and many insects and crustaceans.

## Works

- Heinrich Kuhl and Johan Conrad van Hasselt. 1820. Beiträge zur Zoologie und Vergleichende anatomie (Contributions to zoology and comparative anatomy). Ed. Hermann. 212 pp.

- 1820 Dissertatio medico-anatomical observation of metamorphosi inauguralis exhibens quarumdam partium Ranae temporariae ... Ed apud I. Oomkens. 51 pp.

- Tyson R Roberts. 1993. The freshwater fishes of Java, as observed by Kuhl and van Hasselt in 1820-23. Leiden : Nationaal Natuurhistorisch Museum. 94 pp.[1]

## Commemorations

- *[Hasseltia](/source/Hasseltia)* ([H.B.K.](/source/Carl_Sigismund_Kunth) 1825); botanical family [Salicaceae](/source/Salicaceae).

- *[Hasseltiopsis](/source/Hasseltiopsis)* ([Sleumer](/source/Hermann_Otto_Sleumer) 1938); botanical family [Salicaceae](/source/Salicaceae).

- *[Kuhlhasseltia](/source/Kuhlhasseltia)*, named with Heinrich Kuhl ([J.J.Sm.](/source/Johannes_Jacobus_Smith) 1910); botanical family [Orchidaceae](/source/Orchidaceae).[2]

The standard [author abbreviation](/source/List_of_botanists_by_author_abbreviation_(A)) Hasselt is used to indicate this person as the author when [citing](/source/Author_citation_(botany)) a [botanical name](/source/Botanical_name).[3]

## See also

- [Category:Taxa named by Johan Conrad van Hasselt](https://en.wikipedia.org/wiki/Category:Taxa_named_by_Johan_Conrad_van_Hasselt)

## References

1. **[^](#cite_ref-1)** [The freshwater fishes of Java, as observed by Kuhl and van Hasselt in 1820-23](https://www.worldcat.org/oclc/30754605) OCLC WorldCat

1. **[^](#cite_ref-2)** [BHL](https://www.biodiversitylibrary.org/page/33068337#page/121/mode/1up) Taxonomic literature : a selective guide to botanical publications

1. **[^](#cite_ref-3)** [International Plant Names Index](/source/International_Plant_Names_Index). [*Hasselt*](https://www.ipni.org/search?q=author%20std%3AHasselt).

- Roberts T. R. 1993. The freshwater fishes of Java, as Observed by Kuhl and van Hasselt in 1820-23. Zoologische Vol. 285, verhandelingen. Ed Natuurhistorisch Nationaal Museum. 94 pp. [ISBN](/source/ISBN_(identifier)) [90-73239-17-6](https://en.wikipedia.org/wiki/Special:BookSources/90-73239-17-6) [pdf](http://www.repository.naturalis.nl/document/149052)

Authority control databases International ISNI VIAF GND FAST WorldCat National United States Netherlands Academics International Plant Names Index People Netherlands Deutsche Biographie Other IdRef Yale LUX

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