Johannes Govertus de Man
Encyclopedia
Johannes Govertus de Man (Middelburg, May 2, 1850 – Middelburg, January 9, 1930) was a Dutch
biologist
. He was assistant curator at the (Dutch
for national natural history museum) in Leiden, where he specialised in free-living nematode
s and decapod
crustacean
s, although he also wrote papers on flatworm
s, sipunculids
and, in his dissertation only, vertebrate
s. His change away from vertebrates disappointed the director of the museum, and de Man left his job there after eleven years. For the rest of his life, de Man worked at his parents' house in Middelburg and later at a house near the shore at Yerseke
in the Oosterschelde
estuary, relying on his family's private income.
s and nematode
s. His crustacean taxa include 30 genera and 523 new species, while his nematode taxa comprise 8 new families, 61 new genera and 239 new sepcies. Taxa described by de Man include:
Netherlands
The Netherlands is a constituent country of the Kingdom of the Netherlands, located mainly in North-West Europe and with several islands in the Caribbean. Mainland Netherlands borders the North Sea to the north and west, Belgium to the south, and Germany to the east, and shares maritime borders...
biologist
Biologist
A biologist is a scientist devoted to and producing results in biology through the study of life. Typically biologists study organisms and their relationship to their environment. Biologists involved in basic research attempt to discover underlying mechanisms that govern how organisms work...
. He was assistant curator at the (Dutch
Dutch language
Dutch is a West Germanic language and the native language of the majority of the population of the Netherlands, Belgium, and Suriname, the three member states of the Dutch Language Union. Most speakers live in the European Union, where it is a first language for about 23 million and a second...
for national natural history museum) in Leiden, where he specialised in free-living nematode
Nematode
The nematodes or roundworms are the most diverse phylum of pseudocoelomates, and one of the most diverse of all animals. Nematode species are very difficult to distinguish; over 28,000 have been described, of which over 16,000 are parasitic. It has been estimated that the total number of nematode...
s and decapod
Decapoda
The decapods or Decapoda are an order of crustaceans within the class Malacostraca, including many familiar groups, such as crayfish, crabs, lobsters, prawns and shrimp. Most decapods are scavengers. It is estimated that the order contains nearly 15,000 species in around 2,700 genera, with...
crustacean
Crustacean
Crustaceans form a very large group of arthropods, usually treated as a subphylum, which includes such familiar animals as crabs, lobsters, crayfish, shrimp, krill and barnacles. The 50,000 described species range in size from Stygotantulus stocki at , to the Japanese spider crab with a leg span...
s, although he also wrote papers on flatworm
Flatworm
The flatworms, known in scientific literature as Platyhelminthes or Plathelminthes are a phylum of relatively simple bilaterian, unsegmented, soft-bodied invertebrate animals...
s, sipunculids
Sipuncula
The Sipuncula or Sipunculida is a group containing 144-320 species of bilaterally symmetrical, unsegmented marine worms...
and, in his dissertation only, vertebrate
Vertebrate
Vertebrates are animals that are members of the subphylum Vertebrata . Vertebrates are the largest group of chordates, with currently about 58,000 species described. Vertebrates include the jawless fishes, bony fishes, sharks and rays, amphibians, reptiles, mammals, and birds...
s. His change away from vertebrates disappointed the director of the museum, and de Man left his job there after eleven years. For the rest of his life, de Man worked at his parents' house in Middelburg and later at a house near the shore at Yerseke
Yerseke
Yerseke is a village situated on the southern shore of the Oosterschelde estuary in the Dutch province of Zeeland. A separate municipality until 1970, it today forms part of the municipality of Reimerswaal. As of 2010 Yerseke had a recorded population of 6,570 inhabitants divided over 2590...
in the Oosterschelde
Oosterschelde
The Oosterschelde is an estuary in Zeeland, Netherlands, between Schouwen-Duiveland and Tholen on the north and Noord-Beveland and Zuid-Beveland on the south.During the Roman Era it was the major mouth of the Scheldt River. Before the St...
estuary, relying on his family's private income.
Taxa named after de Man
- Anachis demani De Jong & Coomans, 1988
- Anchistus demani Kemp, 1922
- Araeolaimus demani (Schuurmans-Stekhoven, 1950) Wieser, 1956
- Axonolaimus demani De Coninck & Stekhoven, 1933
- Caridina demani J. Roux, 1911
- Charybdis (Goniosoma) demani Leene, 1937
- Chromadorina demani Inglis, 1962
- Clibanarius demani Buitendijk, 1937
- DemaniaDemaniaDemania is a genus of crabs in the family Xanthidae, containing the following species:* Demania alcocki Deb, 1987* Demania armadillus * Demania baccalipes * Demania crosnieri Serene, 1984...
Laurie, 1906 - Demaniella Steiner, 1914
- Demanietta Bott, 1966
- Demanietta manii (Rathbun, 1904)
- Dracograllus demani Allen & Noffsinger, 1978
- Dromia (Cryptodromia) de Manii Alcock, 1899 (a synonym of Cryptodromia amboinensis De Man, 1888)
- Eleutherolaimus demani (Rouville, 1903)
- Engina demani De Jong & Coomans, 1988
- Etisus demani Odhner, 1925
- Exopalaemon mani (Sollaud, 1914)
- Gonodactylellus demanii (Henderson 1893)
- Labuanium demani (Bürger, 1893)
- Manella Rathbun, 1906
- Metapenaeus demani (J. Roux, 1922)
- Metoncholaimus demani (Zur Strassen, 1894)
- Molgolaimus demani Jensen, 1978
- Neoliomera demani Forest & Guinot, 1962
- Palaemon sundaicus De Mani Nobili, 1899 (a synonym of Macrobrachium equidens (Dana, 1852))
- Panulirus demani Borradaile, 1899 (a synonym of P. versicolorPanulirus versicolorPanulirus versicolor is a species of spiny lobster that lives in tropical reefs. Other names include painted rock lobster, blue lobster, and blue spiny lobster. P. versicolor is one of the three most common varieties of spiny lobster in Sri Lanka, alongside Panulirus homarus and Panulirus...
(Latreille, 1804)) - Percnon demani Ward, 1934
- Periclimenes demani Kemp, 1915
- Petrarctus demani (Holthuis, 1963)
- Phascolosoma (Satonus) demanni (Sluiter, 1891)
- Pontophilus demani Chace, 1984
- Processa demani Hayashi, 1975
- Pseudocollodes demani Balss, 1929
- Rhabdodemania Baylis & Daubney, 1926
- Richtersia demani Stekhoven, 1935
- Sabatieria demani Bresslau & Stekhoven in Stekoven, 1935
- Scyllarus demani Holthuis, 1946
- Synalpheus demani Borradaile, 1899
- Thalamita de Mani Nobili, 1905 (a synonym of T. invicta Thallwitz, 1891)
- Tricoma demanema, Chromadorita demaniana Filipjev, 1922
- Uca demani Ortmann, 1897
- Uca manii Rathbun, 1909 (a synonym of U. forcipata (Adams & White, 1848))
- Urocaris de Mani Balss, 1916 (a synonym of Periclimenes scriptus (Risso, 1822))
- Vir Holthuis, 1952 (Latin = man)
- Xantho demani Odhner, 1925 (a synonym of Lachnopodus subacutus (Stimpson, 1858))
- Zozymodea demani (Odhner, 1925)
Taxa named by de Man
De Man described many new taxa in his lifetime, mostly for crustaceanCrustacean
Crustaceans form a very large group of arthropods, usually treated as a subphylum, which includes such familiar animals as crabs, lobsters, crayfish, shrimp, krill and barnacles. The 50,000 described species range in size from Stygotantulus stocki at , to the Japanese spider crab with a leg span...
s and nematode
Nematode
The nematodes or roundworms are the most diverse phylum of pseudocoelomates, and one of the most diverse of all animals. Nematode species are very difficult to distinguish; over 28,000 have been described, of which over 16,000 are parasitic. It has been estimated that the total number of nematode...
s. His crustacean taxa include 30 genera and 523 new species, while his nematode taxa comprise 8 new families, 61 new genera and 239 new sepcies. Taxa described by de Man include:
- Alope orientalis De Man, 1906
- Alpheus rapacidaAlpheus rapacidaAlpheus rapacida, is a species of snapping shrimp of the family Alpheidae. It is found at depths of up to across the Indo-West Pacific, with a few recent observations from the Mediterranean coasts of Israel and Turkey as a Lessepsian migrant....
De Man, 1908 - Caridina gracilirostrisCaridina gracilirostrisCaridina gracilirostris is an algae–eating species of shrimp native to India. In the wild, it is found in mangroves and marshes. It is often kept as a pet in freshwater aquariums due to its unique red rostrum, which gives it an unusual appearance...
De Man, 1892 - Caridina serratirostrisCaridina serratirostrisCaridina serratirostris is a species of freshwater shrimp that lives in the Indo-west Pacific region, from Madagascar to Fiji, including northern Queensland. Its common name in the aquarium trade, "ninja shrimp", comes from its ability to quickly change colour and disappear into its surroundings...
De Man, 1892 - Cuapetes amymone De Man, 1902
- Eiconaxius sibogae De Man, 1925
- GeosesarmaGeosesarmaGeosesarma is genus of terrestrial crabs. They live and reproduce on land with the larval stages inside the egg. Some species such as Geosesarma nemesis are insectivorous and are beneficial to humans. Some species are kept as pets. They were once considered part of the Grapsidae family but were...
De Man, 1892 - Laomenes amboinensis (De Man, 1888)
- Lysmata amboinensis De Man, 1888
- Macrobrachium rosenbergii (De Man, 1879)
- Palinurellus wieneckii (De Man, 1881)
- PerisesarmaPerisesarmaPerisesarma is a genus of mangrove crabs in the family Sesarmidae predominantly found in the Indo-Pacific. There are 23 species as of late 2006 with two from west Africa: P. kammermani & P. alberti Rathbun, 1921. They are typically small semi-terrestrial crabs found on the forest floor at low tide...
De Man, 1895 - Thor amboinensisThor amboinensisThor amboinensis is a species of shrimp found across the Indo-West Pacific and in parts of the Atlantic Ocean. It lives on corals, sea anemones and other animals in shallow reef communities....
(De Man, 1888)