Acanthogonatus recinto
| Acanthogonatus recinto | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Chelicerata |
| Class: | Arachnida |
| Order: | Araneae |
| Infraorder: | Mygalomorphae |
| Family: | Pycnothelidae |
| Genus: | Acanthogonatus |
| Species: | A. recinto
|
| Binomial name | |
| Acanthogonatus recinto Goloboff, 1995
| |
Acanthogonatus recinto is a mygalomorph spider of Chile, its name arising from its type locality: Recinto, Nuble, Region VIII, Chile.[1] Females are distinguished from those of A. franki by the spermathecae, having a more rounded and differentiated fundus and its basal portion extended internally, compared to those of A. peniasco with a narrower, longer and less sclerotized ducts; and from other species in the genus by having 1-1-1 P spines on its patella IV. Males differ from those of A.franki in the unique winglike projection at the base of the embolus.
Description
[edit]- Male: total length 12.95 millimetres (0.510 in); cephalothorax length 5.80 millimetres (0.228 in), width 4.90 millimetres (0.193 in); cephalic region length 3.70 millimetres (0.146 in), width 3.05 millimetres (0.120 in); medial ocular quadrangle length (OQ) 0.52 millimetres (0.020 in), width 1 millimetre (0.039 in); labium length 0.42 millimetres (0.017 in), width 0.85 millimetres (0.033 in); sternum length 2.92 millimetres (0.115 in), width 2.32 millimetres (0.091 in). Its labium possesses 3 cuspules. A well-developed serrula is present; its teeth are widely spaced. Its sternal sigilla is small, oval and shallow; its sternum is rebordered. Chelicerae: rastellum is weak. A small, ventrally protruding cheliceral tumescence is present. Its leg I and tibia are cylindrical and straight, with no apophysis; its metatarsus is also straight. Its cephalothorax, legs, and palpi are a reddish-brown colour, while its abdomen is a light yellowish brown, with numerous dorsal mottles and a darker chevron.[1]
- Female: total length 19.2 millimetres (0.76 in); cephalothorax length 6.9 millimetres (0.27 in), width 5.5 millimetres (0.22 in); cephalic region length 4.45 millimetres (0.175 in), width 3.7 millimetres (0.15 in); fovea width 0.7 millimetres (0.028 in); (OQ) 0.62 millimetres (0.024 in), width 1.14 millimetres (0.045 in); labium length 0.70 millimetres (0.028 in), width 1.17 millimetres (0.046 in); sternum length 3.52 millimetres (0.139 in), width 3.07 millimetres (0.121 in). Its cephalic region is of medium convexity; its fovea shaped straight to procurved, with a small posterior notch. Its labium possesses 4 cuspules. A well-developed serrula is present. Its sternal sigilla is small, oval and shallow; its sternum is rebordered. Chelicerae: rastellum is weak. Color similar to male.[1]
Distribution
[edit]It is found in only a few localities in Regions VIII and IX in Chile.
