A study was made of Haminoea zelandiae, H. solitaria, H. cymbalum,
and H. crocata. The reproductive systems show a close similarity to that of Aplysia
and lack of important anatomical differences show that Haloa and Lamprohaminoea
are unnecessary genera. The mantle cavity, alimentary canal, and nervous system
show the relationship of Haminoea to Atys and Smaragdinella
