Acanthogonatus chilechico

Acanthogonatus chilechico is a mygalomorph spider of Chile, its name arising from its type locality: Chile Chico, General Carrera, Region XI (de Aysén), Chile.[1] This species is most similar to A. notatus, but is distinguished by a less developed embolar flange and by having the basal portion of the bulb narrower in lateral view, and the presence of more numerous spines on its metatarsus I.

Acanthogonatus chilechico
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Araneae
Infraorder: Mygalomorphae
Family: Pycnothelidae
Genus: Acanthogonatus
Species:
A. chilechico
Binomial name
Acanthogonatus chilechico
Goloboff, 1995

Description

  • Male: total length 11.74 millimetres (0.462 in); cephalothorax length 5.04 millimetres (0.198 in), width 4.18 millimetres (0.165 in); cephalic region length 3.22 millimetres (0.127 in), width 2.66 millimetres (0.105 in); medial ocular quadrangle 0.49 millimetres (0.019 in), width 0.87 millimetres (0.034 in); labium length 0.5 millimetres (0.020 in), width 0.93 millimetres (0.037 in); sternum length 2.90 millimetres (0.114 in), width 2.14 millimetres (0.084 in). Its labium has no cuspules. A serrula is present on the anterior edge only. Its sternal sigilla is small, oval and submarginal; it possesses a weakly rebordered sternum. Chelicerae: rastellum is formed by attenuate setae; its 6 teeth are widely spaced. Cheliceral tumescence is white and flat. Its metatarsus is almost straight. The entire spider is yellowish-brown in colour, while its abdomen has darker spots, forming a chevron.[1]

Distribution

It is known to habitate only in the type locality.

References

  1. 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).
  • "Acanthogonatus chilechico". Integrated Taxonomic Information System.
  • ADW entry
  • "Acanthogonatus chilechico" at the Encyclopedia of Life
  • ZipcodeZoo entry
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