Red Clam or Bloody Clam [130-160g/pc] It is typically available in the winter, spring and summer. Like all clams it is high flavor in texture and, therefore, chewy. Akagai is also called Ark Shell or Blood Cockles. Aka-gai is quite easy to identify as it looks like a wilted flower, of course, once it is taken out of its shell. The taste is sweeter than most clams.