MALACOLOGIA, 1983, 23(2): 221-270
NEW ZEALAND SIDE-GILLED SEA SLUGS
(OPISTHOBRANCHIA: NOTASPIDEA: PLEUROBRANCHIDAE)
R. С Willan
Zoology Department, University of Auckland, Auckland, New Zealand^
ABSTRACT
Five New Zealand species of the family Pleurobranchidae are recognized. Berthella ornata
(Cheeseman) is endemic. Bathyberthella zelandiae is described as a new genus and species,
and is also endemic. Berthella aurantiaca (Risso) is restricted to the Mediterranean Sea, but in
New Zealand this name has been applied incorrectly and indiscriminately to two species differ-
entiated here
BioStor
