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    • Photo Gallery of Mollusks of Southern California >
      • Class: Polyplacophora
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  • HOME
  • ABOUT US
    • The Festivus
    • Meetings and Events
    • Membership and Dues
    • A Condensed History of the San Diego Shell Club
    • List of Presidents of the San Diego Shell Club
    • Historical Documents
    • Picture Gallery
    • Club Officers
    • Club Corporate Documents
    • Honorary & Charter Members
  • EVENTS
    • West Coast Shell Shows in Photos >
      • 2023 WCSS in Photos
      • 2024 WCSS in Photos
  • THE FESTIVUS
    • 2025
    • 2024
    • 2023
    • 2022
    • 2021
    • 2020
    • 2019
    • 2018
    • 2017
    • 2016
    • 2015
    • 2014
    • Festivus Past Issues (Online)
  • MEMBERSHIP
    • How to Become a Member
    • Electronic Membership Form
  • RESOURCES
    • Shell Club Presentations
    • Reference Resources
    • Sets of Data for Shells Offered at SDSC Auctions
    • Other Shell Clubs
    • Mollusk-related Web Site List
    • Library
  • STORE
  • CONTACT
    • Contact Form - Electronic
  • SHELLS!
    • Photo Gallery of Mollusks of Southern California >
      • Class: Polyplacophora
      • Class: Gastropoda
      • Class: Bivalvia
      • Class: Scaphopoda
    • Haliotis rufescens (The Red Abalone), California's State Mollusk
    • Information About Protected Areas and Regulations
Picture
Class: Gastropoda
The gastropods are a large group, the members of which typically possess one (usually spiral-shaped) shell, or in some cases a reduced or absent shell. They also have a muscular "foot" which is primarily used for locomotion. There are many gastropod species in Southern California, offshore, along the coastlines and in our bays and estuaries.
Note: Click the images below to see larger versions of them!
Family: Naticidae
Glossaulax reclusiana (Deshayes, 1839)
Picture
Shell. © P. Tuskes
Picture
Live animal with mud-stained shell, fully extended.
​© P. Tuskes

Sinum scopulosum (Conrad, 1849)
Picture
© D. Berschauer

Family: Buccinidae
Kelletia kelletii (Forbes, 1850)
Picture
© D. Berschauer

Family: Nassariidae
Nassarius tiarula (Kiener, 1841)
Picture
Dorsal view of shell, Mission Bay, San Diego, California.
​© R. J. Waayers
Picture
Live specimen, in situ, Mission Bay, San Diego, California.
​© R. J. Waayers
Nassarius fossatus (Gould, 1850)
Picture
Picture
Shell in two views, Mission Bay, San Diego, California. © R. J. Waayers
Picture
Live specimen in situ, Monterey Bay, California. © R. Clark

Family: Muricidae
Pteropurpura festiva (Hinds, 1844)
Picture
Dorsal view of shell. © P. Tuskes
Picture
Live specimen in situ, with egg capsules. Mission Bay, San Diego, California. ​© R. J. Waayers

Pteropurpura trialata (G. B. Sowerby II, 1834)
Picture
Series of shell specimens, showing morphological variation. ​© P. Tuskes
Picture
Dorsal view of shell. © P. Tuskes
Picture
Live specimen, in situ, with egg capsules.
​Mission Bay, San Diego, California. © R. J. Waayers

Pteropurpura macroptera (Deshayes, 1839)
Picture
Dorsal view of shell. © P. Tuskes
Picture
Series of shell specimens, showing
​morphological variation ​© P. Tuskes
Picture
Live specimen in situ, Monterey Bay, California, © R. Clark

Pteropurpura vokesae Emerson, 1964
Picture
Picture
Dorsal and ventral views of shell. © P. Tuskes

Forreria belcheri (Hinds, 1843)
Picture
Picture
Shell specimens, showing size and other morphological variation. © P. Tuskes
Picture
Live specimen in situ, © P. Tuskes

Babelomurex oldroydi (I. S. Oldroyd, 1929)
Picture
Picture
Dorsal and ventral views of shells. © P. Tuskes
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  • HOME
  • ABOUT US
    • The Festivus
    • Meetings and Events
    • Membership and Dues
    • A Condensed History of the San Diego Shell Club
    • List of Presidents of the San Diego Shell Club
    • Historical Documents
    • Picture Gallery
    • Club Officers
    • Club Corporate Documents
    • Honorary & Charter Members
  • EVENTS
    • West Coast Shell Shows in Photos >
      • 2023 WCSS in Photos
      • 2024 WCSS in Photos
  • THE FESTIVUS
    • 2025
    • 2024
    • 2023
    • 2022
    • 2021
    • 2020
    • 2019
    • 2018
    • 2017
    • 2016
    • 2015
    • 2014
    • Festivus Past Issues (Online)
  • MEMBERSHIP
    • How to Become a Member
    • Electronic Membership Form
  • RESOURCES
    • Shell Club Presentations
    • Reference Resources
    • Sets of Data for Shells Offered at SDSC Auctions
    • Other Shell Clubs
    • Mollusk-related Web Site List
    • Library
  • STORE
  • CONTACT
    • Contact Form - Electronic
  • SHELLS!
    • Photo Gallery of Mollusks of Southern California >
      • Class: Polyplacophora
      • Class: Gastropoda
      • Class: Bivalvia
      • Class: Scaphopoda
    • Haliotis rufescens (The Red Abalone), California's State Mollusk
    • Information About Protected Areas and Regulations