The Echinoid Directory

Mespilia Desor, in Agassiz & Desor, 1846, p. 357

Diagnostic Features
  • Test medium-sized; inflated in profile with rounded ambitus; flattened above and below.
  • Apical disc dicyclic, with gonopores close to the outer margin; inner region of genital plates tuberculate, forming a semi-regular ring around the periproct. Perirproct subcircular; periproct plates small and undifferentiated.
  • Ambulacral plating trigeminate. Pore-pairs arranged with the middle pore-pair (on the occluded plate) adradial to the other two; forming a single adradial band. Not expanded adorally and no pore-crowding close to the peristome.
  • Two subequal tubercles on each ambulacral plate.
  • Wide perradial and interradial naked zones developed from apex to well beneath the ambitus.
  • Small angular pits at sutural triple points on perradius and interradius; horizontal sutures without pits.
  • Interambulacral plates with tuberculation confined to adradial margin from ambitus aborally. Central primary tubercle small and flanked by subequal tubercles latterally and above.
  • Primary tubercles imperforate and non-crenulate.
  • Peristomial with almost no buccal notches.
  • Lantern camarodont.
  • Spines small and simple.
  • Globiferous pedicellariae with broad blade.
Recent; Indo-West Pacific.
Name gender unknown
Echinus globulus Linnaeus, 1758, p. 664, by original designation.
Species Included
Only the type.
Classification and/or Status

 Euechinoidea; Camarodonta; Temnopleuroida; Temnopleuridae.



Distinguished by its broad naked perradial and interradial zones from most other temnopleurids. Distinguished from  Microcyphus by having interambulacral plates that are much wider than tall.

Mortensen, T. 1943. A monograph of the Echinoidea Part III.2, Camarodonta 1. C. A. Reitzel, Copenhagen.