Pacifastacus nigrescens
id:
pacifastacus-nigrescens-264-17887424
title:
Pacifastacus nigrescens
text:
Pacifastacus nigrescens, the sooty crayfish, is an extinct species of crayfish in the family Astacidae. It was originally described in 1857 by William Stimpson from the area around San Francisco, where it was once common in the creeks surrounding San Francisco Bay. The signal crayfish, Pacifastacus leniusculus was introduced to California, probably in the 19th century, and since then, no sightings of P. nigrescens have been made; it is now believed to be extinct. Intensive searches of its former
brand slug:
wiki
category slug:
encyclopedia
description:
Extinct species of crayfish
original url:
https://en.wikipedia.org/wiki/Pacifastacus_nigrescens
date created:
date modified:
2023-08-12T20:13:53Z
main entity:
{"identifier":"Q2087241","url":"https://www.wikidata.org/entity/Q2087241"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/a/a2/Pacifastacus_nigrescens.jpeg","width":1539,"height":866}
fields total:
13
integrity:
15