Peraclis depressa   Meisenheimer  (Sea Snail)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Mollusca
Class: Gastropoda
Order:Thecosomata
Family:Peraclidae

Image copyrights: Zooplankton of the South Atlantic Ocean

Description
Size: Shell height 3 mm, diameter 2.5 mm.

Color: Shell white, only large specimens with yellowish apex, keel brownish to yellow.

Slightly elongate shell with 3 whorls and deep suture without radial crests. Spire depressed, whorls increasing quickly in size. Short keel ends in distinct aperture tooth, aperture wide, base of aperture pointed towards keeled rostrum. Shell surface with regular structure of spiral lines, sometimes forming reticulate pattern. Tooth-like protrusion visible in inner angle of upper aperture border, turned upwards and lying close to apex. Aperture tooth with keel running over only short distance, along upper whorl. Outer aperture border regularly rounded. Columella provided with very strong keel which continues into rostrum; columellar membrane relatively well-developed, but not broad. Umbilicus clearly visible and wide. Operculum, with 5 whorls, no radial striae.


Synonym (s)

Common Name (s)
Economic Importance and Threats

Ecology

Biogeography


• Andaman Sea INDIA (Record: 05/2000)

Literature Source(s)
  • Bhattacharjee, D (2005) Pteropod preservation profiles in seabed sediments off Middle Andaman Island in Andaman Sea Indian Journal of Marine Sciences CSIR 34(3) 259-266 Available at - http://nopr.niscair.res.in/handle/123456789/1561
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Boltovskoy, D (Ed.) Zooplankton of the South Atlantic Ocean Marine Species Identification Portal Available at - http://species-identification.org/species.php?species_group=Zsao&menuentry=inleiding

Page last updated on:2010-07-20

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