Acanthogonatus birabeni
Acanthogonatus birabeni is a mygalomorph spider of Argentina, named after Max Birabén, an Argentinian arachnologist.[1] It differs from others in the patagonicus group by its smaller size and (except for A. fuegianus) by the less developed bulb keels.
| Acanthogonatus birabeni | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Chelicerata |
| Class: | Arachnida |
| Order: | Araneae |
| Infraorder: | Mygalomorphae |
| Family: | Pycnothelidae |
| Genus: | Acanthogonatus |
| Species: | A. birabeni |
| Binomial name | |
| Acanthogonatus birabeni Goloboff, 1995 | |
Description
- Male: total length 7.9 millimetres (0.31 in); cephalothorax length 3.27 millimetres (0.129 in), width 2.62 millimetres (0.103 in); cephalic region length 2 millimetres (0.079 in), width 1.65 millimetres (0.065 in); medial ocular quadrangle length 0.35 millimetres (0.014 in), width 0.69 millimetres (0.027 in); labium length 0.25 millimetres (0.0098 in), width 0.61 millimetres (0.024 in);sternum length 1.87 millimetres (0.074 in), width 1.46 millimetres (0.057 in). Its labium possesses no cuspules. A serrula is apparently present as a small patch of denticles. Its posterior sternal sigilla is small, shallow and marginal; its sternum weakly rebordered. Chelicerae: rastellum is formed by long, thin, stiff setae. Cheliceral tumescence is present. Leg I: tibia long and cylindrical, with an apical prolateral spur typical for this genus; metatarsus evenly curved downward in its basal third, the remainder being straight. The entire spider is a light yellow colour, with a dorsal abdominal pattern similar to that in A. patagonicus.[1]
Distribution
Known only from its type locality: Puerto Madryn, Chubut, Argentina.
References
- Goloboff, Pablo A. "A revision of the South American spiders of the family Nemesiidae (Araneae, Mygalomorphae). Part 1, Species from Peru, Chile, Argentina, and Uruguay. Bulletin of the AMNH; no. 224." (1995).
Further reading
- Study on a Mygalomorph spider community in central Argentina: Ferretti, Nelson; Pompozzi, Gabriel; Copperi, Sofia; Pérez-Miles, Fernando; González, Alda (2012). "Mygalomorph Spider Community of a Natural Reserve in a Hilly System in Central Argentina". Journal of Insect Science. 12 (31): 1–16. doi:10.1673/031.012.3101. ISSN 1536-2442. PMC 3471799.
External links
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