Sea of Cortez Shells and Sea Snails

This page links to some of the living seashells we saw and photographed during two short trips to the Sea of Cortez, the first in the Mulege area in July 1983 and the second on the other side near San Carlos in September 1985. This page includes shelled gastropods; nudibranchs and their relatives are figured on another page. Both trips were made back in the old days of film cameras, and most of my 36 exposures per dive were saved for nudibranchs and sea slugs, so photos of shells were rather limited. In addition, all photos were taken with a Nikonos submersible camera and extension tubes, limiting the sizes of possible subjects. Getting living animal photos of shells usually requires patience. Disturbed animals tend to retract into their shells and often will not come out for some time. Our dive trips were of limited duration, and I rarely would spend the time to wait for a shell's animal to show itself, so the photos below represent only a small fraction of the species we actually did see there. Shells were neither collected nor measured in the field, so any sizes given are just estimates.

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Cancellariidae - nutmeg shells


Cancellaria obesa

Euclia cassidiformis

Trigonostoma goniostoma

Trigonostoma pygmaeum

Cassidae - helmet and bonnet shells


Cypraecassis tenuis

Semicassis centiquadrata

Cerithiidae - horn shells


Cerithium stercumuscarum

Columbellidae - dove shells


Columbella haemastoma

Mitrella ocellata

Parametaria dupontii

Strombina maculosa

Conidae - cones


Conasprella mahogani

Conasprella ximenes

Conus brunneus

Conus dalli

Conus diadema

Conus fergusoni

Conus gradatus

Conus princeps

Conus purpurascens

Conus tiaratus

Conus virgatus

Conus vittatus

Cymatiidae - tritons


Monoplex macrodon

Cypraeidae - cowries


Luria isabellamexicana


Macrocypraea cervinetta


Naria albuginosa

Pseudozonaria annettae

Pseudozonaria arabicula

Epitoniidae - wentletraps


Epidendrium billeeanum


Epitonium reflexum

Opalia funiculata

Fascioliidae - spindle shells


Araiofusus colpoicus


Goniofusus dupetitthouarsi

Fissurellidae - keyhole limpets


Diodora inaequalis

Harpidae - harp shells


Morum tuberculosum

Mitridae - miter shells


Subcancilla sulcata

Muricidae - murexes


Aspella hastula


Dermomurex bakeri

Murexsul skoglundae

Phyllocoma scalariformis

Phyllonotus erythrostomus

Pteropurpura erinaceoides

Vokesimurex ruthae

Typhina grandis

Olividae - olives


Oliva incrassata


Oliva porphyria

Olivella dama

Ovulidae - false cowries


Cyphoma emarginatum


Jenneria pustulata


Simnia cf loebbeckeana

Pisaniidae


Solenosteira macrospira

Pseudomelatomidae - turrid shells


Knefastia dalli

Pilsbryspira nymphia

Strombidae - strombs and fingershells


Persististrombus granulatus

Strombus gracilior

Terebridae - augers


Terebra robusta

Triviidae - trivias


Pusula solandri

Turbinidae - turbans


Turbo fluctuosus

Volutidae - volutes


Enaeta cumingii

POLYPLACOPHORA - chitons


Stenoplax sonorana

BIVALVIA - bivalves (clams)

Chione tumens


Euvola vogdesi

Lyropecten subnodosus

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