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ID 26062
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title alternative
Early Development of the Sand Dollar, Scaphechinus mirabilis (Echinodermata: Echinoidea: Clypeasteroida) as a Teaching Material
creator
Torigoe, Kenji
subject
Scaphechinus mirabilis
Echinodermata
early development
teaching material
ハスノハカシパン
棘皮動物
初期発生
教材
NDC
Education
Biology
abstract
Scaphechinus mirabilis Agassiz, 1863 is a widely distributed sand dollar in Japan. We observed early development of this species based on the specimens from Etajima Island, Hiroshima Prefecture. Our study revealed that S. mirabilis is a good teaching material for observing early development by the following features: the jelly coat with reddish-purple pigment spots, showing to enable the observation of the jelly coat without Indian ink; the fertilization membrane is clearly observed; and the blastomeres separate clearly, showing the observation of the cleavage is easy.
journal title
Bulletin of the Graduate School of Education, Hiroshima University. Part. II, Arts and science education
issue
Issue 57
start page
13
end page
17
date of issued
2008-12-26
publisher
広島大学大学院教育学研究科
issn
1346-5554
ncid
SelfDOI
language
jpn
nii type
Departmental Bulletin Paper
HU type
Departmental Bulletin Papers
DCMI type
text
format
application/pdf
text version
publisher
department
Graduate School of Education
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