Calculus bicolor
| Calculus bicolor | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Arachnida |
| Order: | Araneae |
| Family: | Orsolobidae |
| Genus: | Calculus Purcell, 1910 |
| Binomial name | |
| Calculus bicolor Purcell, 1910 | |
Calculus bicolor, the sole species of the genus Calculus, is a South African spider in the family Orsolobidae. Individuals are 4 mm in length, although only juveniles have been described. The abdomen is pale yellow with a broad brown patch, and black markings on the sides of the spinnerets.[1] Calculus bicolor was described by 1910 by William F. Purcell, and long assigned to the Oonopidae (goblin spiders), until a 2012 study assigned Calculus to the family Orsolobidae on the basis of sensory organs that differed those of oonopids.[2]
References
- ↑ Purcell, W. F. (1910). "The phylogeny of the tracheae in Araneae" (PDF). Quarterly Journal of Microscopical Science 54: 519–564.
- ↑ Platnick, Norman I. et al. (2012). "Tarsal organ morphology and the phylogeny of goblin spiders (Araneae, Oonopidae), with notes on basal genera." (PDF). American Museum Novitates (3736): 1–52.