CYMONOMIDAE Bouvier, 1897

Guinot, Danièle & Quenette, Gwenaël, 2005, The spermatheca in podotreme crabs (Crustacea, Decapoda, Brachyura, Podotremata) and its phylogenetic implications, Zoosystema 27 (2), pp. 267-342 : 311-312

Family CYMONOMIDAE Bouvier, 1897

The thoracic sternum remains hitherto poorly known, despite the photograph of the ventral view of a male of Curupironomus agassizi (A. Milne-Edwards & Bouvier, 1899) given by Rathbun (1937: pl. 31, fig 2, as Cymopolus agassizii ). A description of the spermatheca of Cymonomus granulatus (Norman in Wyville T h o m s o n, 1 8 7 3) w a s p r o v i d e d b y G o r d o n (1963: 51, fig. 10B). Suture 6/7 runs accross the full width of the thorax, thus is complete. The position of the spermatheca is indicated by a distinct bulge on sternite 8, the spermatophoral mass seems rather small, and the aperture is spindle-shaped. Sternite 8 may partly overlap the sternite 7 in providing a kind of pocket at the extremity of the suture 7/8 (see also Tavares 1994: fig. 37A, as Cymonomus sp. ). The apex of G2 is like the sole of a boot ( Gordon 1963: 52, fig. 11B), which corresponds to the ovate spermathecal opening.

According to Gordon (1963: 52), the Cymonomus type of spermatheca is reminiscent of that found in the Homolidae .