Acanthogonatus recinto explained
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
- Male: total length 12.95mm; cephalothorax length 5.8mm, width 4.9mm; cephalic region length 3.7mm, width 3.05mm; medial ocular quadrangle length (OQ) 0.52mm, width 1mm; labium length 0.42mm, width 0.85mm; sternum length 2.92mm, width 2.32mm. 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.
- Female: total length 19.2mm; cephalothorax length 6.9mm, width 5.5mm; cephalic region length 4.45mm, width 3.7mm; fovea width 0.7mm; (OQ) 0.62mm, width 1.14mm; labium length 0.7mm, width 1.17mm; sternum length 3.52mm, width 3.07mm. 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.
Distribution
It is found in only a few localities in Regions VIII and IX in Chile.
External links
Notes and 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).
