Ask the Chatbot Games & Quizzes History & Society Science & Tech Biographies Animals & Nature Geography & Travel Arts & Culture ProCon Money Videos
gaper clam
Table of Contents
Introduction References & Edit History Quick Facts & Related Topics
Quizzes
Sea otter (Enhydra lutris), also called great sea otter, rare, completely marine otter of the northern Pacific, usually found in kelp beds. Floats on back. Looks like sea otter laughing. saltwater otters
Animal Group Names
Lion (panthera leo)
Deadliest Animals Quiz
Mute swan with cygnet. (birds)
Match the Baby Animal to Its Mama Quiz
vulture. An adult bearded vulture at a raptor recovery center. The Gypaetus barbatus also known as the Lammergeier or Lammergeyer, is a bird of prey and considered an Old World vulture.
Animal Factoids
Related Questions
Read Next
Japanese spider crab
10 Animals With Evolutionary Traits Plucked Straight Out of a Nightmare
Malayan Leaf Frog - Megophrys nasuta
9 Animals That Look Like Leaves
Cheetah (Acinonyx jubatus) standing on rock, side view, Masai Mara National Reserve, Kenya
The Fastest Animals on Earth
Big beaver gnawing on limb at river's edge
6 Animal Species that Mate for Life
Cuban Bee Hummingbird (Mellisuga helenae) single adult male, Zapata peninsula, Cuba, Caribbean.Bee hummingbirds are the smallest birds in the world.
Queen Mab’s Stable: 7 of the Smallest Animals
Discover
Close-up of ostriches (Struthio camelus) necks and heads; location unknown.
6 of the World's Most Dangerous Birds
The Colosseum, Rome, Italy. Giant amphitheatre built in Rome under the Flavian emperors. (ancient architecture; architectural ruins)
New Seven Wonders of the World
Nativity Scene, Adoration of the Magi, Church of the Birth of the Virgin Mary, Montenegro
Why Is Christmas in December?
Town of Sisimiut located on the coast of the Davis Strait on Kangerluarsunnguaq Bay, Greenland
The Largest Islands in the World
Saint Lucia Day. Young girl wears Lucia crown (tinsel halo) with candles. Holds Saint Lucia Day currant laced saffron buns (lussekatter or Lucia's cats). Observed December 13 honor virgin martyr Santa Lucia (St. Lucy). Luciadagen, Christmas, Sweden
7 Winter Solstice Celebrations From Around the World
World Data Locator Map: Australia
Is Australia an Island?
Orange basketball on black background and with low key lighting. Homepage 2010, arts and entertainment, history and society
The 10 Greatest Basketball Players of All Time

gaper clam

mollusk
verifiedCite
While every effort has been made to follow citation style rules, there may be some discrepancies. Please refer to the appropriate style manual or other sources if you have any questions.
Select Citation Style
Feedback
Corrections? Updates? Omissions? Let us know if you have suggestions to improve this article (requires login).
Thank you for your feedback

Our editors will review what you’ve submitted and determine whether to revise the article.

External Websites
Also known as: Tresus capax, Tresus nuttallii, horse clam
Written and fact-checked by
The Editors of Encyclopaedia Britannica
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors.
The Editors of Encyclopaedia Britannica
Article History
Also called:
Horse Clam
Related Topics:
clam
See all related content

gaper clam, (Tresus nuttallii and Tresus capax), either of two species of bivalve mollusks of the family Mactridae. These clams live in sand and mud flats along the coast of western North America from Alaska to Baja California. The shells of both species reach about 200 millimetres (8 inches) in length. They are roughly oblong in shape and creamy white in colour. Gaper clams have long, fused siphons that are contained in sheathlike tubes; the siphons are not fully retractable into the shell. The clams burrow up to one metre (three feet) deep into sediment. Gaper clams are edible and are heavily fished at spring tides. They are commonly infected with larval tapeworm cysts, but these are harmless to humans.

  翻译：