Genus Darina Gray, 1853 .
Type Species: Erycina solenoides King & Broderip, 1832 [by Monotypy]
Diagnosis. Shell elongated, very thin, fragile, compressed laterally; siphonal gap at both ends; external ligament small, teeth weak in cardinal area; pallial sinus deep about 1/2 Shell length.
Distribution. BahÃa Blanca, Argentina, to Puerto Montt, Chile.