Sea Urchin (Sea Urchin) - Sea Urchin

Japanese: フクロウニ(袋海胆) - フクロウニ
Sea Urchin (Sea Urchin) - Sea Urchin
A general term for three species of the genus Asthenosoma , an echinoderm in the family Echinothuriidae, or a species in two or three closely related genera. The shell plates that make up the sea urchin's shell are not fully bonded, making the entire shell flexible and allowing the body to deform. There are a great many shell plates, with 35 to 60 plates in a vertical row of intertrochanteric zones, and the number of trochanteric zone plates is about twice as many. The shell diameter is generally large, reaching 10 to 20 cm, but the height is short at 2 to 4 cm. There are four types of tubular spines.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:
ウニ綱フクロウニ科Echinothuriidaeの棘皮(きよくひ)動物でフクロウニ属Asthenosomaの3種,または2~3の近縁属の種類の総称。ウニの殻を構成している殻板の結合が十分でないために殻全体が柔軟で,体を変形させることができる。殻板が非常に多く,間歩帯の縦列には35~60個の板が見られ,歩帯板の数はこの約2倍もある。殻径は一般に大きく,10~20cmになるが,高さは2~4cmと低い。4種類の管状のとげがある。

出典 株式会社平凡社世界大百科事典 第2版について 情報

<<:  Thylacine (Sack wolf) - Thylacine (English spelling)

>>:  Owl butterfly - Owl butterfly

Recommend

Sanronshu - Sanronshu

A sect (school) of Chinese Buddhism that was intr...

Hanswurst (English spelling)

A crude, comical, fat-as-wurst, jester or fool, us...

Chen

The last dynasty of the Southern Dynasties in Chi...

Jasper National Park - Jasper National Park

Located in the eastern side of the Rocky Mountain...

Chlorine disinfection

Also called chlorine disinfection. Sterilization u...

Catholic Emancipation Act - Catholic Emancipation Act

A British law enacted in 1829. In English, it is c...

Leather-bound short armor

…Formal name of armor. In the Todaiji Temple Offe...

Carbon steel - tansokou (English spelling) carbon steel

A steel material whose main components are iron an...

Raoul de Houdenc

A medieval French poet and storyteller, born in no...

Uso (Japanese bush warbler) - Uso

A bird of the family Fringillidae. It resembles a ...

Folger, HC (English spelling) FolgerHC

…The official name is the Folger Shakespeare Libr...

Swinburne, Algernon Charles

Born: April 5, 1837, London [Died] April 10, 1909,...

Turtle frogs - Turtle frogs

...The family Pipidae includes the African clawed...

Biliary tract cancer - Biliary tract cancer

This is cancer that develops in the bile duct from...

Balthasar Hubmaier

Around 1480 - 1528 German Reformer. One of the ear...