Kalpana Kalpana (Editor)

Acanthogonatus alegre

Updated on
Edit
Like
Comment
Share on FacebookTweet on TwitterShare on LinkedInShare on Reddit
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