A tiny nudibranch with few finger-like protrusions, arranged in groups of two or three along each side of the body. The pale brown body is marked with tiny black spots as are the protrusions. It grows up to 8 mm in length.
Nicola White 2008. Tenellia adspersa. Lagoon sea slug. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 08/12/2010]. Available from: