Template:Ayres, 1851g

• Ayres, W.O. 1851. [Two new Holothuridae belonging to the genus Thyonidium]. Proceedings of the Boston Society of Natural History. 4: 69–70. BHL. 
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Nomenclatural acts

• Date of publication: August 1851

New names (2)

• Thyonidium glabrum
• Thyonidium musculosum