The genus Mytilina in China, with description of a new species <br />(Rotifera: Monogononta: Mytilinidae)

Abstract

During our study of biodiversity of Rotifera in PR China, as model taxon of freshwater Micrometazoa, we came across several records that warrant revision regarding species of genus Mytilina Bory de St. Vincent, 1826 (Rotifera, Monogonta, Mytilinidae). In addition to this review we describe a new species encountered during examination of freshwater habitats of Inner Mongolia, P.R.China. This new species, Mytilina wangi n. sp., appears to belong to the Mytilina mucronataventralis complex but differs from the known taxa in the group by its domed lorica and relatively short toes. We provide an annotated checklist of the Chinese representatives of the genus and discuss the species of the M. mucronata-ventralis group. We suggest treating M. brevispina (Ehrenberg, 1830) and M. ventralis (Ehrenberg, 1830)(synonym: M. macracantha (Gosse, 1886)) as separate species-level taxa rather than as two infrasubspecific variants of the same species, and argue that Mytilina trigona var. bispinosa Wang, 1961 is a misidentified M. acanthophora Hauer, 1938 rather than an infrasubspecific variant of M. trigona (Gosse, 1851).

Interesting rotifers (Rotifera: Eurotatoria) from floodplain lakes of lower Brahmaputra river basin of Assam, northeast India

“…The former is treated as a distinct species following Segers (2007) though Jersabek & Leitner (2013) considered it as T. patina dendradena. We also followed analogies of resurrecttion of Lecane nitida; Mytilina michelangellii and M. brevispina vide Segers & Savatenalinton (2010), Pourriot (1996) and Luo & Segers (2014), respectively for the said treatment. T. dendradena is diagnosed by its characteristic vitellarium and it co-occurred with T. patina in some collections.…”