Sertularella crassa is a branching colonial hydroid in the family Sertulariidae.Schuchert, P. (2018). World Hydrozoa Database. Sertularella crassa Billard, 1919. Accessed through: World Register of Marine Species on 2018-08-13
Description This hydroid grows to 3 cm.
Distribution Described from eastern Indonesia; collected by the Dutch Siboga Expedition.
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