Metadynomene tanensis (Yokoya, 1933)

Guinot, Danièle & Quenette, Gwenaël, 2005, The spermatheca in podotreme crabs (Crustacea, Decapoda, Brachyura, Podotremata) and its phylogenetic implications, Zoosystema 27 (2), pp. 267-342 : 284

Metadynomene tanensis (Yokoya, 1933)

Female 20.5 × 21.9 mm, New Caledonia, SMIB 8, stn DW 199 (MNHN-B 26576).

Suture 7/8 ends by a visible aperture ( Fig. 4A ). The spermathecal bulb, well developed and pear-shaped, extends along the whole length of each chamber, without a visible basal thickening. The chamber has its two sheets nearly adjoining, without a marked space between; the inner wall is relatively soft. There is no tube, and at its anterior part the chamber itself ends by a well marked terminal opening.

Figures

FIG. 4. — A, B, Metadynomene tanensis (Yokoya, 1933), female 20.5 × 21.9 mm, New Caledonia (MNHN-B 26576); C, D, Dynomene pilumnoides Alcock, 1900, female 12.4 × 14.5 mm, Madagascar (MNHN-B 6913); A, C, thoracic sternum; B, D, axial skeleton, with connections by fusion. Abbreviations: a, spermathecal aperture at extremity of sternal suture 7/8; br, transverse bridge; cx3, P3 coxae; g, female gonopore; i.p., intertagmal phragma; 1-3, sternites 1-3; 4-8, sternites 4-8; 7/8, thoracic sternal suture 7/8. Scale bars: 5 mm.