Rotifera from the Mediterranean Sea, with description of ten new species Author De Smet, Willem H. text Zootaxa 2015 4028 2 151 196 journal article 10.11646/zootaxa.4028.2.1 2baa825b-3af6-49ff-896e-f5cb990b4d62 1175-5326 240556 D47167E0-5C14-47F9-B4AA-9E906D13DF89 Rotaria laticeps Wulfert, 1942 Rotaria laticeps is to date only known with certainty from the Mediterranean Sea. This strictly saline species was originally described from algae in a canal connecting a salt marsh (salinity 27.6–77.2 ‰) with the Adriatic Sea ( Wulfert 1942 ). It occurred in almost all present areas studied, and was formerly reported for the Adriatic, Tyrrhenian and Ionian Sea by Fontaneto et al . (2008b , c ), the Costa Blanca, Hyères Archipelago and Tyrrhenian Sea ( De Smet 2009 ), and a retrodunal pond (salinity 8 ‰, algae at − 0.5 m ) at the Costa Paradiso, Strait of Bonifacio, Sardinia, W. Mediterranean Sea by Curini-Galletti et al . (2012). It is often one of the numerically dominant rotifers in periphyton, psammon, and benthic sandy detritus up to 8 km off shore and a depth of 45 m . A record, perhaps doubtful, is from inland saline Neusiedler See, by Donner (1972) . A species differing from the nominate species, and requiring further study, was reported as R. ? laticeps from sediments and mosses of the alpine freshwater Slippery Rock Creek, Victoria, Australia by Ricci et al . (2003). The ramate trophi ( Fig. 26 ) show two pairs of major unci teeth, 16–17 pairs of minor unci teeth in the proximal, and 9–12 pairs in the distal group.