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SAND DOLLARS IN CHEJU ISLAND, KOREA

(Mar 24th 2000) :X-ray image of A. manni for Dr. Tominaga

Ecological Studies on Astriclypeus manni by Kang, Do-Hyung

   ±¸¸Û¿¬ÀÙ¼º°Ô, Astriclypeus manni ´Â Á¦ÁÖ ¿¬¾ÈÀÇ ÇØÀú ¸ð·¡¹Ù´Ú¿¡ ¼­½ÄÇÏ´Â ¼º°ÔÀÇ ÀÏÁ¾ÀÌ´Ù.  ±¸¸Û¿¬ÀÙ¼º°Ô´Â ºÐ·ùÇÐÀûÀ¸·Î ±ØÇǵ¿¹°¹®, ¼º°Ô°­, ºÎÁ¤Çü¼º°Ô ¾Æ°­¿¡ ¼ÓÇϸç, ±× ¸ð¾çÀÌ ¸¶Ä¡ µ¿Àü°ú °°´Ù ÇÏ¿© ¿µ¾î·Î sand dollar·Î ºÒ¸®¿î´Ù.  ±¸¸Û¿¬ÀÙ¼º°Ô´Â Á¦ÁÖµµ ¼º»ê, ÇÔ´ö, ÇѸ², °­Á¤ µîÁö¿¡ ¼­½ÄÇϸç ÀϹÝÀûÀ¸·Î ¸ð·¡¿¡ ¹¯Çô ¼­½ÄÇϱ⠶§¹®¿¡ ±× Á¸Àç°¡ Àß ¾Ë·ÁÁ®ÀÖÁö ¾Ê´Ù.  


Sand Dollar, Astriclypeus manni

  • Very common in subtidal sandy bottom, from 1 to 50 m
  • Size of the test diameter about 10 to 20 cm in adult
  • This photographs were taken from a population found in shallow subtidal eel grass bed at depth of 1 to 3 m, northern Cheju by Nikon F-90 camera with 60 mm lens

Where is Cheju Island ?

A closer view of oral Part Ventral View

Dordal View of A. manni Dorsal View

Aristotal's Lantern Internal Structure

Ventral View of A. manni Ventral View

Internal Structure

internal structure of A. manni Internal Structure

Habitat

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Sea biscuit, Clypeaster japonicus

  • Common in shallow subtidal, from 5 to 50 m
  • Usually found at transition zone between hard¡¡
    and soft bottom

Habitat

Internal structure

Internal Structure of Sea Biscuit Internal structure

Ventral view

Gut and etc..

Dorsal view

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