The holotype of this species (USNM 21006) was collected in Panama from South of Coiba Island (Centroid Latitude: 6.3722, Centroid Longitude: -81.8667), Gulf of Chiriqui, eastern Pacific, by the R. V. Albatross, from a depth of 850 m.
Other specimens of this species in Panama have been collected from off Isla Jacarita (three from 7 11.590 N, 81 51.023 W, depth range 900 to 933 m, one from 7 11.784 N, 81 50.897 W, depth 723 m), Gulf of Chiriqui, eastern Pacific (see Lessios, 2005).
Mortensen. T. (1939). Vidensk. Meddr Dansk Naturh. Foren. bd. 103, p. 548.
Mortensen, T. (1940). A monograph of the Echinoidea 3(1). Aulodonta. Copenhagen. 370 pp., 196 figures, 77 pls; pages: 110-112.
Lessios, H. A. (2005). Echinoids of the Pacific Waters of Panama: Status of knowledge and new records. Rev. Biol. Tropical 53 (sup. 3):147-170.
LSID urn:lsid:marinespecies.org:taxname:456750Holotype: USNM 21006
Type locality: South of Coiba Island (Centroid Latitude: 6.3722, Centroid Longitude: -81.8667), Gulf of Chiriqui, Panama, eastern Pacific, from a depth of 850 m.
