李啟澤醫師的部落格

Salmacis belli

Doederlein, 1902

貝利角孔海膽

SIZE：78X 50.2mm

FAMILY：Temnopleuridae刻肋海膽科

LOCALITY：Penghue Is. , Taiwan .

感謝 “(自戀)”兄慷慨贈送此顆海膽以資比對「Salmacis bicolor L. Agassiz, 1846 雙色角孔海膽」的迷惑，基本上此兩顆海膽如經過清洗後的殼體自有其相異之處，但當牠還是活體或還是有棘刺存在的標本時，外觀相似度極高，即這兩者的棘刺都是黃綠色片段與紫紅色片段相間。但經比對其棘刺卻有極大的不同，棘刺最主要的差別在基部顏色的差異，belli是綠色而bicolor是赭紅色。

Salmacis belli, aboral  view.

Salmacis belli, Apical system.

Salmacis belli, lateral view. ambulacrum area.

Salmacis belli, lateral view. ambulacrum area. close-up.

Salmacis belli, lateral view. ambulacrum area. more close-up.

Salmacis belli, lateral view. interambulacrum area.

Salmacis belli, lateral view. interambulacrum area. close-up.

Salmacis belli, oral view.

Salmacis belli, oral view. close-up.

Salmacis belli, oral view. more close-up and perignathic girdle.

Salmacis belli, oral view. perignathic girdle.

Salmacis belli, primary spines and secondary spines.
The longest spine measured about 16mm.
.

Salmacis belli, primary spines spines. close-up.
greenwish base of neck and collar area of spine.
and the shaft is red to purple segment alternating with dark green segment.

Salmacis belli, primary spines and secondary spines. close-up.
some spine are flatten and only green/yellowish color with a red segment .