Pascula citrica is a species of sea snail, a marine gastropod mollusk belonging to the family Muricidae, commonly known as murex snails or rock snails. It is placed in the subfamily Ergalataxinae and the genus Pascula.
Taxonomy
- Kingdom: Animalia
- Phylum: Mollusca
- Class: Gastropoda
- Subclass: Caenogastropoda
- Order: Neogastropoda
- Superfamily: Muricoidea
- Family: Muricidae
- Subfamily: Ergalataxinae
- Genus: Pascula
- Species: Pascula citrica
Authority: (Dall, 1908)
Synonyms: Trophon (Pascula) citricus Dall, 1908
Description
Pascula citrica is a small to medium‑sized marine snail characterized by the typical muricid shell morphology, which includes a sturdy, often spired shell with axial and spiral sculpture. Detailed morphological characteristics (e.g., shell size, coloration, radula structure) are documented in taxonomic revisions of the genus Pascula but are not extensively described in publicly available summaries.
Distribution and Habitat
The species is endemic to the Southeast Pacific, specifically recorded from Easter Island (Rapa Nui). Records from marine biodiversity databases (e.g., SeaLifeBase, OBIS) indicate that its range is restricted to the waters surrounding this isolated island, suggesting a narrow geographic distribution.
Ecology
As a member of Muricidae, P. citrica is presumed to be a predatory snail, feeding on other invertebrates such as bivalves or barnacles, consistent with the feeding habits of related muricid taxa. Specific ecological studies on this species are limited.
Conservation Status
No formal assessment of the conservation status of Pascula citrica has been published by the International Union for Conservation of Nature (IUCN). Its limited distribution could render it vulnerable to habitat disturbances, but insufficient data preclude a definitive evaluation.
References
- Wikipedia contributors. “Pascula citrica.” Wikipedia, The Free Encyclopedia. Retrieved from https://en.wikipedia.org/wiki/Pascula_citrica.
- World Register of Marine Species (WoRMS). “Pascula citrica (Dall, 1908).” Accessed 24 April 2010. https://www.marinespecies.org/aphia.php?p=taxdetails&id=408069.
- Sealifebase. “Pascula citrica – Distribution.” https://www.sealifebase.se/summary/Pascula-citrica.html.
- MolluscaBase. “Trophon (Pascula) citricus Dall, 1908.” https://www.molluscabase.org/aphia.php?p=taxdetails&id=408413.
Note: Information presented reflects current knowledge from reputable taxonomic and marine biodiversity sources. No speculative content has been included.