Kalpana Kalpana (Editor)

Acanthogonatus alegre

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Kingdom
  
Animalia

Subphylum
  
Chelicerata

Order
  
Araneae

Rank
  
Species

Phylum
  
Arthropoda

Class
  
Arachnida

Infraorder
  
Mygalomorphae

Similar
  
Acanthogonatus francki, Acanthogonatus, Nemesiidae

Acanthogonatus alegre is a mygalomorph spider of Chile, its name using the Spanish word for “happy”, referring to the aspect of a happy face that the female epigastrium has in posterior view. Females are recognized by the epigastrium produced in a membranous extension and the long, slender and bifurcated spermathecae.

Contents

Description

  • Female: total length 23.3 millimetres (0.92 in); cephalothorax length 8.4 millimetres (0.33 in), width 6.2 millimetres (0.24 in); cephalic region length 5.35 millimetres (0.211 in), width 4.2 millimetres (0.17 in); fovea width 0.75 millimetres (0.030 in); medial ocular quadrangle length 0.67 millimetres (0.026 in), width 1.25 millimetres (0.049 in); labium length 0.67 millimetres (0.026 in), width 1.37 millimetres (0.054 in); sternum length 4.12 millimetres (0.162 in), width 3.1 millimetres (0.12 in). Its cephalic region is flat, low and narrow, with its fovea slightly procurved and with a small posterior notch. Its labium possesses 1 cuspule. A well-developed serrula is present. Its sternal sigilla is oval, elongated, small and shallow; its sternum is rebordered. Chelicerae: rastellum is absent. Its spermathecae has a conspicuous epigastric projection. Its cephalothorax, legs and chelicerae are an olive brown colour with golden hairs, while its abdomen is lighter, with a darker chevron similar to the one in A. campanae.

    • Distribution

    Known only from its type locality: Antofagasta, (Region II) Chile.

    References

    Acanthogonatus alegre Wikipedia
    (Text) CC BY-SA


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