In the Osaka gulf of Tannowa fishermen's cooperative association
Classroom of the shellfish
  Beach University PAGE
Ark
shell
Rapana
venosa
Little neck Aba-
lone
J.ivory
shell
Rusty
tegura
Disk
abalone
Mus-
sel
Ribbed
little n.
Turban
shell
Pen
shell
Japane.
abalone
coc-
kle
Washing-
ton clam
 
Giant Abalone
(Haliofidae)
This shellfish lives in depth of the water around 10-50m of the reef. We can pick up the husk of this shellfish at the shore. And the spiracle which there are 5-6 swells highly. It is dioecism and hits an egg and a sperm by in-vitro fertilization underwater. The length of the husk is maximum in the abalone at around 15cm.

「水のいきものシリーズ第1集 大阪湾・磯に生きる貝
This page is translated from the original of the book which the Natural history museum .Kishiwada city published mentioned above and quoted a photograph.