Sao Tomé Clingfish

This small species is characterized by the following: 5-6 dorsal-fin rays; 5-7 anal-fin rays; 20-25 pectoral-fin rays; 3 mandibular canal pores; head width in males 3.6-4.0 (mean 3.84) in SL; male anus has distinct papillae; the anal-fin length distance between anus and anal-fin origin 2.9; snout in males long, more or less pointed, conical; preorbital length in males 3.1–4.0 in head length; occipital region with a large dark pinkish blotch behind each eye; and the lower sides of the body with a row of dark blotches, scattered with white spots in between (Ref. 58096).

The São Tomé clingfish (Apletodon wirtzi) is a species of marine fish of the family Gobiesocidae (clingfish). It grows to 1.4 cm maximal length. It occurs in the eastern Atlantic Ocean, around the islands of São Tomé and Príncipe between 0 and 3 metres depth. The species was first described in 2007 by Ronald Fricke, its specific name honouring the collector of the type, marine biologist Peter Wirtz of Madeira.