List in field format
Clark, A.H. 1950. A Monograph of the Existing Crinoids. Vol. I. The Comatulids. Part 4c Superfamily Tropiometrida (the families Thalassometridae and Charitometridae). U. S. natn. Mus. Bull. 82 (part 4c): vii + 383 pp.
