Collisella onychitis (Menke 1843) Outstanding!
F++ H 6,5 W 18,8 mm. Very beautiful. Dorsum black, yellowish/cream, pale blue and white color. Inside pale blue, white, olive green, grayish and black color. Has small defects doesn't detract from it's overall beauty. Taken on rock near tide line. Prevelly Park, Margaret River Mouth, South West Australia 1968
USD 6.00