Author Title Journal |
Wang A-T, Wu H-L (2005) A new record genus and one new species of Dalyelliidae (Platyhelminthes, Rhabdocoela, Dalyellioida) from China Acta Zootaxonomica Sinica 30(3): 516-519 |
Abstract / Notes
A new species, Gieysztoria shenzhensis sp. nov. , of the genus Gieysztoria (Turbellaria, Rhabdocoela, Dalyellidae) is described in this paper. Type specimens are deposited in College of Life Sciences, Shenzhen University. Material examined. Holotype, SZ200210-1; an artificial lake in Shenzhen University ( 22.61[degree] N, 114.13[degree]E), Guangdong Province, China; Oct. 2002. Paratypes 23, SZ200210-2-24; the same data as bolo-type, collected by WANG An-Tai. Description (Figs .1-9). Body length 1 100 [mu]m. Front end semicircular, tail end tapering. There is a brown serrate patch in the dorsal epidermis of the central body. Penis, keratose, length 95 [mu]m. The clitellum length 25 [mu]m, width 20 lam. The penis has four dagger-shaped stout spines which have the same shape and length about 70 [mu]m. Between every two stout spines there is a shorter and thinner scourge-like small spine, length 30-60 [mu]m. Two testis are located both sides of the penis. Vitellaria stick-shaped. Habitat. The new species was found in an artificial lake in the campus of Shenzhen University, Guangdong Province, China. There is no other water plant but some algae in the lake. Water temperature 20[degree]C; pH 6.8. Etymology. The specific name reflects the original place from which the material was collected. Remarks. Compared with all recorded species of genus Gieysztoria, the present species characterizes that there are only 4 stout spines in the cuticular penis which distinctly differs from that of other two similar species originated from Europe, Gieysztoria. Macrovariata 9-spinosa and G. diadema.
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