Toxopneustidae is a family of globular sea urchins in the class Echinoidea.
Characteristics All Camarodonts have imperforate tubercles and compound ambulacral plates. In addition, the Toxopneustids are characterised by the peristome, or opening through the test, having a sharp margin with the buccal notches being prominent. The tubercles lack the crenulations or ring of cog-like structures that articulate with the spines in certain other families. The Aristotle's lantern, or jaw apparatus, has the keeled teeth and the epiphyses united above the foramen magnum, the V-shaped gap between the hemipyramids that support the lantern's tooth.The Echinoid Directory The Natural History Museum. Retrieved 2011-08-27.
Genera Goniopneustes Duncan, 1889 Gymnechinus Mortensen, 1903b Lytechinus A. Agassiz, 1863 Nudechinus H.L. Clark, 1912 Oligophyma Pomel, 1869 Pseudoboletia Troschel, 1869 Schizechinus Pomel, 1869 Scoliechinus Arnold & H.L. Clark, 1927 Sphaerechinus Desor, 1856 Toxopneustes L. Agassiz, 1841b Tripneustes L. Agassiz, 1841b
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