A new species of Astrosarkus from Western Australia including new Mesophotic occurrences of Indian Ocean Oreasteridae (Valvatida, Asteroidea) Author Mah, Christopher L. text Memoirs of Museum Victoria 2023 2023-09-25 82 143 165 http://dx.doi.org/10.24199/j.mmv.2023.82.08 journal article 10.24199/j.mmv.2023.82.08 1447-2554 12214383 Culcita Agassiz 1836 Diagnosis. Adults large with massive pentagonal, strongly arched body and confluent arms. Abactinal-lateral and actinolateral edges round, producing a nearly circular appearance. Marginal plate limits and body surface concealed by thickened, granule-invested dermis. Pore areas well developed but irregular to confluent. Actinal granules, granule-invested dermis dense, obscuring limits of the plates. Modified from Marsh and Fromont (2020). Small individuals of Culcita are more flattened and pentagonal and appear more “goniasterid-like” ( Kano et al., 1991 ). Comments. Culcita includes three accepted species, C. novaeguineae , C. coriacea and C. schmideliana , known from Indo-Pacific, Red Sea and Indian Ocean habitats respectively.