Davidina
Encyclopedia
Necatia is a taxon
given to a genus
of the jumping spider
family
Salticidae.
Its only species, N. magnidens, is found in southern China
.
The species is only known from a single female specimen, collected in 1872 by A. David, and described by Schenkel almost a hundred years later. Nothing more has been reported of the species since.
for "big toothed".
rules, because Davidia had already been established by Hicks in 1873 as the name of a genus of Cycloconchidae, fossil
mollusks. However, Brignoli overlooked that in 1879, Oberthür
had already named a genus of Satyrini
thus
. Possibly, Brignioli believed the mollusk genus to be a nomen dubium
; it is certainly weakly defined (Carter 1971 fide Sánchez 1999) but it is still generally accepted as valid. In any case, the lepidoptera
n genus is well-defined and valid. Thus, another replacement name for the spider became necessary.
Taxon
|thumb|270px|[[African elephants]] form a widely-accepted taxon, the [[genus]] LoxodontaA taxon is a group of organisms, which a taxonomist adjudges to be a unit. Usually a taxon is given a name and a rank, although neither is a requirement...
given to a genus
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...
of the jumping spider
Spider
Spiders are air-breathing arthropods that have eight legs, and chelicerae with fangs that inject venom. They are the largest order of arachnids and rank seventh in total species diversity among all other groups of organisms...
family
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...
Salticidae.
Its only species, N. magnidens, is found in southern China
China
Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...
.
The species is only known from a single female specimen, collected in 1872 by A. David, and described by Schenkel almost a hundred years later. Nothing more has been reported of the species since.
Description
From above, the carapace is U-shaped, slightly flared at the front. The female is slightly larger than 6 mm. The posterior lateral eyes are located almost half-way along the carapace. The abdomen is longer than broad and the legs are spiny. Schenkel described the specimen as having an overall brownish black color, "which is, perhaps, not surprising for a specimen preserved for so long".Name
The genus name is dedicated to Necati Bingöl. magnidens is LatinLatin
Latin is an Italic language originally spoken in Latium and Ancient Rome. It, along with most European languages, is a descendant of the ancient Proto-Indo-European language. Although it is considered a dead language, a number of scholars and members of the Christian clergy speak it fluently, and...
for "big toothed".
Taxonomy
Taxonomically, this genus is interesting. The name Davidina was proposed by Brignoli in 1985 as a replacement for the original name Davidia, proposed by Schenkel in 1963. This was necessary according to ICZNInternational Code of Zoological Nomenclature
The International Code of Zoological Nomenclature is a widely accepted convention in zoology that rules the formal scientific naming of organisms treated as animals...
rules, because Davidia had already been established by Hicks in 1873 as the name of a genus of Cycloconchidae, fossil
Fossil
Fossils are the preserved remains or traces of animals , plants, and other organisms from the remote past...
mollusks. However, Brignoli overlooked that in 1879, Oberthür
Charles Oberthür
Charles Oberthür was a French entomologist specializing in Lepidoptera. He was the son of François-Charles Oberthür.Oberthür named 42 new genera of moths -Works:...
had already named a genus of Satyrini
Satyrini
The Satyrini are a huge tribe of the Satyrinae, containing the graylings, ringlets and allies. They belong to the Nymphalidae family...
thus
Davidina
Necatia is a taxon given to a genus of the jumping spider family Salticidae.Its only species, N. magnidens, is found in southern China....
. Possibly, Brignioli believed the mollusk genus to be a nomen dubium
Nomen dubium
In zoological nomenclature, a nomen dubium is a scientific name that is of unknown or doubtful application...
; it is certainly weakly defined (Carter 1971 fide Sánchez 1999) but it is still generally accepted as valid. In any case, the lepidoptera
Lepidoptera
Lepidoptera is a large order of insects that includes moths and butterflies . It is one of the most widespread and widely recognizable insect orders in the world, encompassing moths and the three superfamilies of butterflies, skipper butterflies, and moth-butterflies...
n genus is well-defined and valid. Thus, another replacement name for the spider became necessary.