Burchard's cockle
A species of cockle (Vasticardium burchardi). The name is usually written in katakana, as is common for many marine species.
Burchard's cockle can be found in the seas around Okinawa.
Katakana spelling is common for this species name; usually written in kana.
Kanji spelling is rare and may not be widely recognized; the first character 笊 is not a jōyō kanji.
The name ざるがい likely derives from 笊 (ざる, 'basket') + 貝 (がい, 'shellfish'), referring to the shell's basket-like shape. The exact origin is uncertain.