Caloria quatrefagesi

Caloria est un genre de mollusques nudibranches de la famille des Facelinidae. L'espèce type est Caloria maculata, depuis reconnue comme synonyme de Caloria elegans.

Caloria quatrefagesi is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Facelinidae. Taxonomy Caloria elegans is morphologically very similar to Facelina quatrefagesi. Facelina quatrefagesi was considered as a synonym of Caloria elegans, but a combination of DNA evidence and morphological comparison resulted in them being recognised as separate valid species.

Facelina es un género de moluscos nudibranquios de la familia Facelinidae. Especies El Registro Mundial de Especies Marinas acepta las siguientes especies válidas en el género:​ Facelina annulata Macnae, 1954 Facelina annulicornis (Chamisso & Eysenhardt, 1821) Facelina auriculata (Müller, 1776) Facelina bilineata Hirano & Ito, 1998 Facelina bostoniensis (Couthouy, 1838) Facelina carmelae Moro & Ortea, 2015 Facelina coenda Er. Marcus, 1958 Facelina dubia Pruvot-Fol, 1948 Facelina fragilis (Risbec, 1928) Facelina fusca Schmekel, 1966 Facelina goslingii A.