Martiodrilus (Botaria) helleri ( Michaelsen, 1918 )

Csuzdi, Csaba & Pavlíček, Tomáš, 2011, New and little known species of the genus Martiodrilus Michaelsen, 1936 from French Guiana (Oligochaeta, Glossoscolecidae), Zootaxa 3099, pp. 57-64 : 58

Martiodrilus (Botaria) helleri ( Michaelsen, 1918)

Thamnodrilus (Thamnodrilus) helleri Michaelsen, 1918: 113 . Martiodrilus helleri: Righi 1995: 516 .

Martiodrilus (Botaria) helleri: Zicsi 1998: 150 ., Fragoso & Brown 2007: 58.

Material examined. HNHM AF /5403 four adult and two praedult ex., AF /5404 five adult and one praeadult ex., AF /5405 three adult and four praeadult ex. French Guiana, Montagnes de Chavaux, rain forest. Leg. O. Tostain, May 2009., AF /5407 one adult and six praeadult ex. French Guiana, Maya, forest. Leg. O. Tostain, May 2009., AF / 5385 one praeadult ex. French Guiana, Kourou. Leg. T. Pavlíček, 0 3 January 2009.

Diagnosis. L. 90–130 mm, D. 4–6 mm. No. segments 125–150. Colour yellowish-brown, somewhat darker on the dorsum. Clitellum ½15–26, ½27, saddle-shaped. Tubercles long bands on ½20, 20–26. Muscular gizzard in 6, calciferous glands composite-tubular, eight pairs in 7–14. Typhlosole large ribbed tube. Hearts in 10–11, oesophageal. Testes and funnels in 10, 11, enclosed in perioesophageal testis sacs. Seminal vesicles in 11, 12, large. Spermathecae three pairs in 6/7–8/9, ampoule irregular sac-shaped, duct short. Genital setae 1.15 mm long, 0.06 mm in diameter, blunt, with 6–7 crescentic indentations ( Fig. 9 ).

Remarks. This is the first report of M. (B.) helleri from French Guiana. Our material fits the original description. The only difference is found in the shape of the spermathecae, which are more elongated in the original material from Suriname but more rounded in our specimens.

Figures

FIGURE 9 – 11. Genital setae of different Martiodrilus species. 9 = M. (B.) helleri; 10 = M. (Ma.) tenkatei; 11 = M. (Ma.) duodenarius.