Sowerby, G. B. II. (1883). Monograph of the family Calyptraeidae. In G.B. Sowerby II (ed.), Thesaurus conchyliorum, or monographs of genera of shells. Vol. 5 (39-40): 55–74, pl. 445–453. London, privately published.
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Sowerby, G. B. II
1883
Monograph of the family Calyptraeidae. In G.B. Sowerby II (ed.), <i>Thesaurus conchyliorum, or monographs of genera of shells</i>. Vol. 5 (39-40): 55–74, pl. 445–453. London, privately published