Tasserkidrilus cf. acapillatus ( Finogenova, 1972 )

Lee, Jeounghee & Jung, Jongwoo, 2016, Faunistic survey on freshwater annelids from Korea, Journal of Species Research 5 (3), pp. 279-288 : 284

18. Tasserkidrilus cf. acapillatus ( Finogenova, 1972)

( Fig. 1L )

Tubifex acapillatus Finogenova, 1972: 4 .

Material examined. One individual was collected from Hagwi­ri, Aewol­eup , Jeju­si , Jeju­do, E: 126°24′19.84″ N: 33°29′0.84″, 18 Jun 2014 (collector: Lee J). This specimen was mounted on a slide and deposited at NIBR; KOSPIV0000216891 .

Remarks. According to Timm (2009), this species has 2­6 chaetae with slightly longer, thinner and straighter upper tooth in anterior ventral bundles ( Fig. 1L ), the penial sheaths of this species look funnel shaped with thin walled. Our specimen agree well with the diagnosis of Timm (2009) about Tasserkidrilus acapillatus . This is the first record about T. acapillatus in Asian region.

World distribution. Europe.

Figures

Fig. 1. A. Ventral chaetae of Paranais orientalis. B. A dorsal chaetal bundle of Prisitna breviseta. C. Ventral chaetae of P. forelii. D. A dorsal chaetal bundle of P. synclites. E. Ventral chaetae of Aulodrilus pluriseta. F. Dorsal chaetae of A. pluriseta. G. A penial sheath of Limnodrilus maumeensis. H. Chaetae of L. amblysetus. I. A dorsal chaetal bundle of Tubifex ignota. J. Dorsal chaetae of Psammoryctides albicola. K. Spermathecal chaetae of Varichaetadrilus vestibulatus. L. Ventral chaetae of Tasserkidrilus cf. acapillatus. Scale bars=A­D, G, K, L=10μm, E, F=20μm, H-J=1 μm.