Reginaldia, Csuzdi, 2006

Csuzdi, Cs., 2006, West African Earthworm Genus Millsonia Beddard, 1894 (Oligochaeta: Acanthodrilidae, Benhamiinae) Reviewed And Separation Of A New Genus, Acta Zoologica Academiae Scientiarum Hungaricae 52 (1), pp. 35-48 : 42

Reginaldia gen. n.

( Fig. 1 )

Millsonia : OMODEO 1955: 218 (part.); OMODEO 1958: 59 (part.); SIMS 1986: 277 (part.); CSUZDI 1995 a: 116 (part.); CSUZDI 1996: 360 (part.); CSUZDI 2000 a: 75 (part.).

Diagnosis. Male terminalia acanthodriline, sometimes with microscolecine reduction. One or two gizzards before the genital segments, three pairs of stalked extramural calciferous glands in segment xv-xvii, excretory system meroic with astomate meronephridia accompanied caudally by stomate enteronephric filiform megameronephridia ( Fig. 1 ). Paired digitate caeca present in at least one, usually several adjacent segments of the intestine; typhlosole present, ventral setae not modified.

Type species: Millsonia ghanensis SIMS, 1965 .

Etymology. The new genus is named in honour of the recognized earthworm taxonomist

REGINALD WILLIAMS SIMS.

Remarks. The new genus is closely related to Millsonia BEDDARD, 1894 but differs from it in the enteronephric condition of the excretory system.

Figures

Figs 1–3. 1 = R. (P.) omodeoi (SIMS, 1986):a = excretory system, b = sketch drawing of the excretory system. Abbreviation – sm: exonephric sac–shaped meronephridium; cch: collecting channel, fm: filiform enteronephric megameronephridium, nc: nerve cord, nf: nephridial funnel. 2–3 = Male field: