Fat Gaper

Tresus capax is a species of saltwater clam, commonly named the ‘fat gaper’, in the family Mactridae. It was originally described as lutraria capax by Augustus Addison Gould. It also shares the common name horse clam with Tresus nuttallii, a species which is similar in both morphology and lifestyle. Both species are somewhat similar to the geoduck (Panopea generosa, which is in the family Hiatellidae), though smaller, with shells up to 8 inches (20 cm) long, weight to 3–4 pounds (1.4–1.8 kg).

From Wikipedia, under CC BY-SA 4.0.

Is it venomous or poisonous?

We have no record of Fat Gaper being toxic, poisonous or venomous. That is not proof that it is safe. Never eat, touch or handle a wild plant, mushroom or animal on the strength of an identification; ask someone qualified.

Easily confused with

• Tresus nuttallii
• Tresus allomyax
• Mactromeris catilliformis
• Saxidomus gigantea
• Mactromeris polynyma
• Saxidomus nuttalli

Classification

Kingdom

Animalia

Phylum

Mollusca

Class

Bivalvia

Order

Venerida

Family

Mactridae

Genus

Tresus

Species

Tresus capax

More species