Geophilus anonyx

{{Short description|Species of centipede in the US}}

{{Speciesbox

| taxon = Geophilus anonyx

| authority = (Chamberlin, 1941)

| synonyms = * Brachygeophilus anonyx Brolemann, 1909

}}

Geophilus anonyx is a species of soil centipede in the family Geophilidae{{cite web |title=ITIS - Report: Geophilus anonyx |url=https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=1092536#null |website=Integrated Taxonomic Information System |access-date=17 December 2021}} found in Oregon.{{cite web |title=Geophilus anonyx (Chamberlin,1941) |url=https://chilobase.biologia.unipd.it/searches/result_species/3016 |website=ChiloBase 2.0 |access-date=17 December 2021}} It was originally placed in the genus Brachygeophilus based on the lack of sternal pores, a character shared with the type species B. truncorum{{cite journal |last1=Bonato |first1=Lucio |last2=Minelli |first2=Alessandro |last3=Zapparoli |first3=Marzio |title=Morphology, taxonomy and distribution of Diphyonyx gen. n., a lineage of geophilid centipedes with unusually shaped claws (Chilopoda: Geophilidae) |journal=European Journal of Entomology |date=2008 |volume=105 |issue=2 |pages=343–354 |doi=10.14411/eje.2008.041 |url=https://www.researchgate.net/publication/242454325 |access-date=17 December 2021|doi-access=free |hdl=11577/2452453 |hdl-access=free }} (now Geophilus truncorum), however it was later moved to Geophilus.

Description

G. anonyx has 57 leg pairs and grows to a length of 24 millimeters. It's characterized by a prosternum lacking chitinous lines; dorsal plates distinctly bisulcate (cloven); spiracles all circular, last ventral plate narrow; coxal pores small, about a dozen on each side; anal pores present, distinct; and anal legs with tarsus biarticulate, without terminal claw.{{cite journal |last1=Chamberlin |first1=Ralph V. |title=New genera and species of north American geophiloid centipedes |journal=Annals of the Entomological Society of America |date=1941 |volume=34 |issue=4 |pages=773–790 |doi=10.1093/aesa/34.4.773 |url=https://academic.oup.com/aesa/article/34/4/773/111444?login=true |access-date=17 December 2021|url-access=subscription }} Like G. tampophor, it differs from other western American geophilids by having prehensorial claws armed at the base, however unlike G. tampophor it possesses unarmed anal claws and a greater number of legs.{{cite journal |last1=Chamberlin |first1=Ralph V. |title=Two New Oregon Chilopods of the Order Geophilida |journal=Psyche: A Journal of Entomology |date=1953 |volume=60 |pages=37–39 |doi=10.1155/1953/47646 |doi-access=free }}

References