Salvini-Plawen, 1991[29] | This study | |
---|---|---|
Optic and buccal ganglia innervated by | branches of ‘terminal cerebropleural connective’* | opg: optic nerve parallel to N4 bg: ventral sides of cpg |
Buccal ganglia located | behind statocysts/pedal ganglia | anterior to pedal ganglia |
Pedal ganglia | with pronounced anterior lobes | spheroid |
Visceral = abdominal ganglion | with ‘chiasma of fibres’ indicating streptoneury | ?without traces of streptoneury |
Paired visceral nerves | with anterior-running branches [29:Figure 4] | not branching |
Postcerebral accessory ganglia | not described | on N4, pedal nerve, ?opgn |
Vesicle filled with spermatozoa is | a ‘spermatheca’ distal to nidamental glands | an ampulla proximal to nidamental glands |
Gonad | ‘appears ramified’; protandric, possibly gonochoric | ~ tubular; hermaphroditic (possibly protandric) |
Externally visible tube below CNS is | anteriormost part of genital system (genital opening ‘still appears to be absent’) | single tubular salivary gland |
Ciliated opening at right body side | is ‘(reduced) mantle cavity’ (= anus and protonephridiopore) | is genital opening |
Intestine located | approx. 100 μm behind visceral ganglion | in posterior fifth of body |
Ventroterminal adhesive gland | not detected/ missing | present |