Nomenclatural checklist for Acromegalomma species (Annelida, Sabellidae), a nomen novum replacement for the junior homonym Megalomma Johansson, 1926 Author Gil, Joao Author Nishi, Eijiroh text ZooKeys 2017 677 131 150 http://dx.doi.org/10.3897/zookeys.677.12030 journal article http://dx.doi.org/10.3897/zookeys.677.12030 1313-2970-677-131 8DE4D2B5BCBE4DA5B831A926DE7FD655 Acromegalomma pacifici (Grube & Oersted in Grube, 1859) comb. n. Sabella pacifici Grube and Oersted in Grube 1859 : 113. Type locality. Punta Arenas, Gulf of Nicoya, Costa Rica (9.976°, -84.852°; estimated geolocation). Synonym. Pseudopotamilla panamica Chamberlin 1919a : 268-269, plate 3 fig. 8 [subjective synonymy by Knight-Jones (1997) ]. Remarks. The authorship of the species is here considered as "Grube & Oersted in Grube, 1859", according to Salazar-Vallejo and Eibye-Jacobsen (2012 : 1398). The authorship appears clearly referred twice in the original publication as "Gr. Oersd." ( Grube 1859 : 113, 120).