Dichogaster (Diplothecodrilus) feai Cognetti, 1910

Csuzdi, Csaba, 2005, Earthworms (Annelida: Oligochaeta) of Sao Tomé, Journal of Natural History 39 (33), pp. 3039-3058 : 3043-3044

Dichogaster (Diplothecodrilus) feai Cognetti, 1910

( Figure 7 )

Dichogaster feae Cognetti 1910, p 104 .

Dichogaster feai: Omodeo 1958, p 64 .

Dichogaster (Dichogaster) feai: Csuzdi 1995, p 111 .

Material examined

AF/5038 one ex. Sao Tome´, Monte Café 860 m asl, near to the waterfall, from fallen logs, leg. Cs. Csuzdi, 26 August 2000. AF/5059 four ex, AF/5060 12 praeadult ex. Sao Tome´,

on the volcano around Lago Amélia, 1450 m asl, from fallen logs, leg. Cs. Csuzdi, 30 August 2000.

Remarks

This species was previously known only from the original description. Based on it Csuzdi (1996) placed D. feai into the subgenus Dichogaster . The well-preserved new material revealed that the first dorsal pore is located in 5/6 and the spermatheca is subdivided, possessing a simple or sometimes bifurcated diverticulum, proving that this species belongs to the subgenus Diplothecodrilus . The moderate number of meronephridia (six to seven per side) also corroborates this fact.

Figures

Figure 7. D. (Dt.) feai: (a) tip of the seta; (b) middle part of the seta with the characteristic ornamentation.