The Echinoid Directory

Contributed by Andrew Smith, October 2010

Lanthonia grantii Mortensen, 1948

Diagnostic Features Compared to other species of Mellita
  • maximum thickness of test at apical disc
  • periproct anterior to and not entering the anal lunule
Distribution Recent; northern Gulf of California to Panama
Type Zoologisk Museum, Copenhagen EE220-1
Classification and/or Status A species of Lanthonia
Remarks See Harold & Telford (1990)

Coppard, S. E. 2016. A new genus of mellitid sand dollar (Echinoidea: Mellitidae) from the eastern Pacific coast of the Americas. Zootaxa, 4111, 158-166.

Harold, A. S. & Telford, M. 1990. Systematics, phylogeny and biogeography of the genus Mellita (Echinoidea: Clypeasteroida). Journal of Natural History 24, 987-1026.

Mortensen, T. 1948. A monograph of the Echinoidea. Volume IV, part 2. Clypeasteroida. C. A. Reitzel, Copenhagen