Fridericia peregrinabunda Michaelsen, 1913

Dózsa-Farkas, Klára, Felföldi, Tamás & Hong, Yong, 2015, New enchytraeid species (Enchytraeidae, Oligochaeta) from Korea, Zootaxa 4006 (1), pp. 171-197 : 189

Fridericia peregrinabunda Michaelsen, 1913

( Figure 12 , A–C)

NIBRIV0000323338. Two adult specimens in 70 % ethanol. The main traits of our specimens are identical with the redescription of Schmelz (2003): two chaetae per bundle, five pairs of nephridia preclitellarly, chylus cells in XIII–XV, sperm funnel relatively small, large seminal vesicle and the type of spermatheca ( Fig. 12 A,B), but our specimens are larger ( 20–25 mm long with 60–80 segment vs. 10–18 mm long and 60–70 segments in Schmelz (2003)). New traits, not mentioned until now: origin of dorsal vessel in XIX–XXI, coelomo-mucocytes roundish or oval, 35–60 µm long, with a characteristic thickened cell border ( Fig. 12 C), lenticytes 7–8 µm long, in vivo. F. peregrinabunda was found as new for Korea in 2009 ( An & Yang 2009).

Figures

FIGURE 12. Micrographs of Fridericia peregrinabunda Michaelsen, 1913 (A – C, in vivo), Fridericia seoraksani Christensen & Dózsa-Farkas, 2012 (D – E, fixed), and Enchytraeus christenseni Dózsa-Farkas, 1992 (F – I). F. peregrinabunda: A – B. Spermathecae. C. Coelomocytes in 100 x magnification, the thickened cell borders clearly visible. F. seoraksani: D. Spermathecae. E. Clitelar gland cells, ventral view; between the two bursal slits (marked with arrow) there are hyaline and granular gland cells. E. christenseni: F. Spermathecae (fixed). G. Saddle-shaped clitellum, ventral view (pb = penial bulbs). H. Coelomocytes. I. Sperm funnel (marked with arrow). G – I in vivo. Scale bars 50 µm.