“Acanthogonatus mulchen”的意思、由来-开放百科全书

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Acanthogonatus mulchen

释义

Description
Distribution
See also
References
External links

{{Italic title}}{{Taxobox
| name = Acanthogonatus mulchen
| image =
| image_caption =
| image_width = 250px
| regnum = Animalia
| phylum = Arthropoda
| classis = Arachnida
| ordo = Araneae
| subordo = Mygalomorphae
| familia = Nemesiidae
| genus = Acanthogonatus
| species = A. mulchen
| binomial = Acanthogonatus mulchen
| binomial_authority = Goloboff, 1995
| range_map =
| range_map_width = 250px
| synonyms =
}}

Acanthogonatus mulchen is a mygalomorph spider of Chile, named after its type locality: Alto Caledonia, east of Mulchén, Region VIII (Bío Bío Region).^[1] It is recognised by the long, narrow sternum. It differs from A. tolhuaca in the spermathecae having a less pronounced notch and the glandular areas on each side joining in the middle. It is larger (A. mulchen has a cephalothorax length of up to {{convert|13.2|mm|in}}, and a total length of {{convert|35.05|mm|in}}), and differs from A. brunneus by its uniformly colored abdomen.

Description

Female: total length {{convert|29.5|mm|in}}; cephalothorax length {{convert|11.8|mm|in}}, width {{convert|9.5|mm|in}}; cephalic region length {{convert|7.7|mm|in}}, width {{convert|7.5|mm|in}}; fovea width {{convert|1.5|mm|in}}; medial ocular quadrangle length {{convert|1|mm|in}}, width {{convert|1.9|mm|in}}; labium length {{convert|0.95|mm|in}}, width {{convert|2|mm|in}}; sternum length {{convert|6.5|mm|in}}, width {{convert|4.8|mm|in}}. Its cephalic region is wide but low, while its fovea s straight to procurved with recurved ends, containing no posterior notch. Its labium possesses 2 cuspules. A serrula is present as a small patch of teeth only on the anterior face of the lobe. Its sternal sigilla is deep and long. Chelicerae: rastellum is absent. The entire spider is a uniform blackish-reddish-brown colour, except for one lighter spot in front of the abdomen. Juveniles have a similar color, but lighter, with diagonal lines of pale dots on the dorsum of their abdomen.^[1]

Distribution

Only in its type locality. It is found in densely silk-lined burrows, between {{convert|15|and|20|mm|in}} wide, which originate from under stones or at the base of trees. The burrow's mouth is funnel-like, with white silk extending so as to form a sort of collar.

References

1. ^¹Goloboff, 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).

External links

{{ITIS| id = 849783| taxon =Acanthogonatus mulchen}}
ADW entry
{{EOL}}

3 : Nemesiidae|Spiders of South America|Spiders described in 1995

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Description

Distribution

See also

References

External links