Rudmania fentoni is a dull coloured species of sea slug or dorid nudibranch, a marine gastropod mollusc in the family Chromodorididae.MolluscaBase (2025). Rudmania fentoni (Valdés, Gatdula, Sheridan & Herrera, 2011). Accessed on 2026-04-19.De Oliveira, J. P. G.; Henryco, B.; Ardila, N. E.; Schrödl, M.; Padula, V. (2025). From discovery to reclassification: a new genus and taxonomic revision of Rudmania grahami (Thompson, 1980) comb. nov. (Mollusca, Nudibranchia, Chromodorididae). Marine Biodiversity. 55: 116 (17 pp.).
Distribution This species was described from three specimens collected off Pinellas County, Florida, in the Gulf of Mexico, .Sheridan, N. (2011) Chromodoris fentoni In: Miller, M. ed. (2015) The Slug Site.
Description Rudmania fentoni has a translucent white background colour heavily flecked with dull red-brown and with small yellow spots with orange centres concentrated towards the edge of the mantle. There is a very thin orange-yellow submarginal line around the mantle.
Ecology The specimens were collected feeding on the sponge Igernella notabilis.
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