original description
Calado G. & Urgorri V. (2002). A new species of <i>Calma</i> Alder & Hancock, 1855 (Gastropoda: Nudibranchia) with a review of the genus. <i>Journal of Molluscan Studies 68</i>: 311-317 [details]
context source (MSBIAS)
MEDIN. (2011). UK checklist of marine species derived from the applications Marine Recorder and UNICORN. version 1.0. [details]
From editor or global species database
Type locality Arflor, Arrábida (38º30'24"N, 08º55'09"W), Portugal [details]