Carcinonemertes ( Kölliker, 1845 )

Santos, Cynthia, Norenburg, Jon L. & Bueno, Sérgio L. S., 2006, Three new species of Carcinonemertes (Nemertea, Carcinonemertidae) from the southeastern coast of Brazil, Journal of Natural History 40 (15 - 16), pp. 915-930 : 917

Genus Carcinonemertes ( Kölliker, 1845)

Diagnosis

From Coe (1902) and amended here (italic): Nemerteans living as symbionts (egg predators) on various species of Crustacea. Proboscis but little developed, very small in size, and extremely short, without lateral pouches of reserve stylets, but armed with central stylet and basis only; anterior proboscis very short, without distinct muscular layers, without distinct nerves, and without a thickened glandular epithelium. Cerebral organs lacking. Two ocelli. Cephalic glands massively developed. Usually oviparous, though fertilization often takes place internally.