Cerithideopsis fuscata (Horn Snail)

[Melanie]

last seen in 1935 NE pacific (California)

Formerly known only from San Diego Bay, California, but currently extinct (See Turgeon et al., 1998).

[another specialist]

Family: Potamididae
Species: Cerithidea fuscata Gould, 1857
Synonyms: Carlton (1993) argued for validity of this species, formerly considered form or ssp. of C. californica (Haldeman, 1840) by most workers (usually as C. californica hyporhyssa Berry, 1906)
Misidentifications:
Common Name: none in Williams et al., 1998
Taxonomic Status:
Hypodigm:
Effective Extinction Date:
Habitat:
Range: San Diego Bay, California, USA
Surveying Notes:
Documented Threats: due to modification or elimination of habitat (Carlton, 1993)
Additional Notes: not in Malacolog, 5/24/00; none in FLMNH online catalog, none in ANSP on line catalog, 5/24/00
References: Carlton, 1993; Williams et al., 1998

research.amnh.org/~mikkel/pages/creo.html#pot

[Sebbe]

Marine Invertebrate Neoextinctions: An Update and Call for Inventories of Globally Missing Species.

The register of global extinctions of marine invertebrates in historical time is updated. Three gastropod and one insect species are removed from the list of extinct marine species, while two gastropods, one echinoderm, and three parasites (a nematode, an amphipod, and a louse) are added. The nine extinct marine invertebrates now recognized likely represent a minute fraction of the actual number of invertebrates that have gone extinct. Urgently needed for evaluation are inventories of globally missing marine invertebrates across a wide range of phyla. Many such species are likely known to systematists, but are either rarely flagged, or if mentioned, are not presented as potentially extinct taxa.

www.mdpi.com/1424-2818/15/6/782