World Register of Marine Species (WoRMS)
MolluscaBase eds. (2026). MolluscaBase. Simpulum Mörch, 1852. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=463536 on 2026-08-26
Mörch [Mørch], O. A. L. (1852-1853). Catalogus conchyliorum quae reliquit D. Alphonso d'Aguirra & Gadea Comes de Yoldi, Regis Daniae Cubiculariorum Princeps, Ordinis Dannebrogici in Prima Classe & Ordinis Caroli Tertii Eques. Fasc. 1, Cephalophora, 170 pp. [1852]; Fasc. 2, Acephala, Annulata, Cirripedia, Echinodermata, 74 [+2] pp. [1853]. Hafniae [Copenhagen]: L. Klein.