| Homalonychidae | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
.jpg/250px-Homalonychus_sp._(Marshal_Hedin).jpg) |
||||||||||||||||
| Scientific classification | ||||||||||||||||
|
||||||||||||||||
| Diversity | ||||||||||||||||
| 1 genus, 3 species | ||||||||||||||||
 |
||||||||||||||||
| Genera | ||||||||||||||||
|
see text |
.jpg/300px-Homalonychus_with_eggsac_(Marshal_Hedin).jpg)
The Homalonychidae are a very small spider family with three described species in one genus. Arthropods are Animals belonging to the Phylum Arthropoda (from Greek ἄρθρον arthron, " Joint " Arachnids are a class ( Arachnida) of joint-legged Invertebrate Animals in the subphylum Chelicerata. Spiders are Predatory Invertebrate Animals that have two body segments, eight legs no chewing mouth parts and no wings The Araneomorphae are a Suborder of Spiders They are distinguished by having Chelicerae (fangs that point diagonally forward and cross in a pinching action The Entelegynae are a subgroup of araneomorph spiders Almost all members of this group unlike most members of Haplogynae, have eight eyes and females have Incertae sedis ( Latin for "of uncertain placement" abbreviated "inc Eugène Simon ( April 30, 1848 - November 17, 1924) was a French Arachnologist. This page lists all described species of the spider family Homalonychidae as of June 19 2007 Spiders are Predatory Invertebrate Animals that have two body segments, eight legs no chewing mouth parts and no wings
They do not build webs and are typically found under rocks or dead vegetation. At least the two North American species live in deserts, to which they are adapted by color and specialized setae which allow them to attach sand and fine soil to themselves. Seta (plural setae) is a biological term derived from the Latin word for " Bristle " They also partially bury themselves. [1]
Contents |
Distribution
Two species are found in the southern USA and Mexico. H. theologus is mostly found west of the Colorado River, H. The Colorado River (' Aha Kwahwat in Mojave) is a River in the southwestern United States and northwestern Mexico, approximately selenopoides mostly to the east, with some populations in Death Valley and near Mercury, Nevada. Death Valley is the lowest driest and hottest Valley in the United States. Mercury is a town in Nye County, Nevada, USA, 5 miles north of Federal Highway 95 at a point 65 miles further northwest of Las Vegas.
In 1991 a species from India was described; however, according to Platnick[2], this third species was misplaced in this genus.
Species
- Homalonychus raghavai Patel & Reddy, 1991 (India)
- Homalonychus selenopoides Marx, 1891 (USA, Mexico)
- Homalonychus theologus Chamberlin, 1924 (USA, Mexico)
See also
References
- ^ Sarah C. Crews: Homalonychus in the Desert Southwest
- ^ Platnick, N. Ralph Vary Chamberlin (1879–1967 was an American Zoologist from Salt Lake City Utah. This page lists all described species of the spider family Homalonychidae as of June 19 2007 I. (2006). World Spider Catalog 7. 0: Homalonychidae
- Marx, G. (1891). A contribution to the knowledge of North American spiders. Proc. ent. Soc. Wash. 2:28-37.
- Chamberlin, R. V. (1924). The spider fauna of the shores and islands of the Gulf of California. Proc. Calif. Acad. Sci. 12:561-694.
- Roth, V. D. (1984). The spider family Homalonychidae (Arachnida, Araneae). American Museum novitates 2790 PDF
- Patel, B. H. & Reddy, T. S. (1991). A rare new species of Homalonychus Marx (Araneae: Homalonychidae) from coastal Andhra Pradesh, India. Rec. zool. Surv. India 89:205-207.
- Vetter, R. S. & Cokendolpher, J. C. (2000). Homalonychus theologus (Araneae, Homalonychidae): Description of eggsacs and a possible defensive posture. The Journal of Arachnology 28:361-363 PDF
- Crews, S. C. & Hedin, M. C. (2006). Studies of morphological and molecular phylogenetic divergence inspiders (Araneae: Homalonychus) from the American southwest including divergence along the Baja Peninsula. Molecular Phylogenetics and Evolution 38:470-487. PDF
External links
Dapyx Software network: MP3 Explorer | Ebook Manager | Zenithic