Tenellia luciae

The specific name luciae is in honour of Lucı́a Valdés, the daughter of malacologist Ángel Valdés.[1] The type specimens are stored in the Museo de Malacologı́a, University of Panama and the Natural History Museum of Los Angeles County.[1]

The type locality of this species is Crawl Cay, Bocas del Toro Archipelago, Panama.[1] The distribution includes the area from Florida to Panama.[1] It may possibly also live in Brazil.[1]

The body length is up to 12 mm. It has yellow cerata. Each ceras has one blue band. The oral tentacles are orange and there is a blue band on the head. The reproductive system contains a penial stylet.[1]

Tenellia caerulea is a similar species. They differ in the radula, jaw and reproductive system.[1] Tenellia herrerai is another similar species. It differs in the radula and in coloration. Tenellia herrerai has no orange oral tentacles and it has no blue band on the head.[1] Tenellia iris is also similar to Tenellia luciae.[1]

Cuthona luciae was found on unidentified hydroids. These may be its prey, because hydroids are also the prey of other Cuthona species. It was recorded from a depth of 1 m.[1]