Arachchige, G.M., Jayakody, S., Mooi, R. & Kroh, A. (2019)

Taxonomy and distribution of irregular echinoids (Echinoidea: Irregularia) from Sri Lanka

. Zootaxa, 4541 (1), 1–100.
https://doi.org/10.11646/zootaxa.4541.1.1