Sea Urchin

© Jean Tresfon

Vito ra Ntolovelo ra Xindyangu

Sea urchin

Vito ra xi Science

Echinoidea

Size

Ku fika eka 36 cm, hixitalo 12 cm

Nhlamuselo

Totala tina miri wa xivumbeko xa globe lowungana xikhamba lexinga tala calcium carbonate. Miri wayona wu khumbarhetiwile hiti spines leti hambanaka hiku leha no bumbula. Muhlovo wa yona wusukela eka ntima, wasi, rihlaza no basa kuya ka orenji notshuka.

Vuxokoxoko

Ndyangu wa Echinoidea uw wela ehansi ka Echinodermata phylum, leyi katsaka tinyeleti hinkwato (Sea, Feather and Brittle) nati Sea cucumbers. Miri wa yona wuna xivumbeko lexi xifanaka na swipoko swa vhilwa ra basikiri.

Yi famba hi swinengani leswintsongo swayona leswi damarhelaka. Yikumeka yiti tumbetile e saveni/sandi. Yinga twisa kuvava kumbe kuhumesa phokolo hiti spines leti nga tshovekaka no twisa kuvava.

Swakudya

Yidya nkuxu (grazers) na detritus.

Kuhangalaka

Yikumeka eka malwandle hinkwawo yalaha misaveni.

Common species

Flower urchin
Toxopneustes pileolus
Needle urchin
Diadema setosum
Slate pencil urchin
Heterocentrotus mammillatus