Unkown
An extremely confused taxa. Seems to be a synonym of C. grangeri Sowerby III 1900, a species only found in the Red Sea and off eastern Sri Lanka. See for more comments from Moolenbeek, Zandbergen & Bouchet 2008 there! Purported specimens from the Philippines are usually C. rolani Röckel 1986, and sometimes C. sulcatus Hwass 1792. Muddy water, 212 mtrs.
Near Harmil Isl., off Dahlak Archipelago, southern Red Sea
Only known from the type locality
41 mm
Unkown.
Muddy water, 212 mtrs.