Dorsal longitudinal osmoregulatory canals, position |
lateral to ventral canals |
lateral to ventral canals |
medial to ventral canals, pass between arches of transverse connecting canals |
Genital atrium, size |
prominent, capable of forming genital papilla |
prominent, capable of forming genital papilla |
inconspicuous, not capable of forming genital papilla |
Genital pores, alternation |
irregularly in very short series |
regularly or irregularly in very short series |
irregularly in relatively long series |
Vagina, position |
runs anterior to cirrus sac distally, opens anterior to male pore |
runs (partly) anterior to cirrus sac, opens anterior to male pore |
runs posterior to cirrus sac, opens posterior or postero-ventral to male pore |
Ovary, shape |
symmetrical, arched |
symmetrical; arched, transversely elongated or ovoid |
asymmetrical, extensive |
Vitellarium, position |
median |
median or slightly poral |
poral |
Fully developed uterus, shape |
sparsely lobulated/sacculated without distinct trunk, secondary ramifications absent |
sparsely lobulated/sacculated without distinct trunk, secondary ramifications absent |
deeply lobulated with distinct trunk, secondary ramifications usually present (“dendritic”) |
Pyriform apparatus in eggs, presence |
present in Q. eljefe, undefined in Q. mesovitellinica |
present |
absent |