We sampled 134 localities on Hainan Island and investigated rotifer fauna from 2010 to 2011, which to analyze the species composition and geographical distribution. The water types include reservoir, river, pond, brook, rice field and temporary pond. Forty-two species and one subspecies of the genera Lecane were identified. Lecane margalefi, L. donneri, L. elegans, L. kunthuleensis, L. lateralis, L. pusilla, L. rhytida, L. subtilis and L. undulata were identified as new to China, and L. cornuta, L. rugosa, L. subtilis and L. margalefi were new to the Oriental Zone. Lecane bulla, L. hamata, L. leontina, L. luna, L. lunaris, L. papuana, L. pyriformis and L. quadridentata were the most common species in this genus. The diversity of Lecane was high on Hainan Island, which was composed of cosmopolitan taxa, tropicopolitan taxa, pantropical taxa, disjunctive distributed taxa and one endemic Lecane in the Oriental Zone: L. kunthuleensis. Diversity of Lecane was much higher on Hainan Island than in southern China, but lower than Thailand. The composition of Lecane was more similar to Thailand than to southern China.
Received: 21 December 2016
Published: 20 April 2017