THE NAUTILUS. 89 
Sect. Gerontia Hutton. 
(1) G. albanensis Cox. (7) G. tasmaniae Cox. 
(2) G. stanleyensis Petterd. (8) G. subrugosa Brazier. 
(3) G. legrandi Cox. (9) G. mathiunee Petterd. 
(4) G. marchiannae Cox. (10) G. macdonaldi Cox. 
(5) G. diemenensis Cox. (11) G. bassi Brazier. 
(6) G. gadensis Cox. (12) G. tamarensis Petterd. 
Sect. Phacussa Hutton. 
(1) Ph. savesi Petterd. (3) Ph. Hamiltoni Cox. 
(2) Ph. stephensi Cox. 
Sect. Allodiscus Pilsbry. 
(1) A. limula Cox. 
Sect. Thalassohelix Pilsbry. 
(1) Th. fordeitBrazier. 
Genus Endodonta (Albers) Pilsbry. 
Sect. Charopa Albers. 
(1) Ch. antialba Beddome. 
Genus Laoma (Gray) Pilsbry. 
Sect. Phrixgnathus Hutton. 
(1) Ph. weldii Tenison-Wood. (5) Ph. pictilis Tate. 
(2) Ph. caesus Cox. (6) Ph. pipzensis Petterd. 
(3) Ph. henryana Petterd. (7) Ph. halli Cox. 
(4) Ph. furneauxensis Petterd. (8) Ph. hobarti Cox. 
Genus Rhytida Albers. 
(1) R. sinclairi Pfeiffer. (2) R. ruga Cox. 
Genus Rhenea Hutton. 
(1) R. nelsonensis Benger. 
It is a most astonishing fact how close the relation between the 
Tasmanian and New Zealand molluscan fauna really is, more so 
than I ever expected it to be. Of nine sections of the genus Flam- 
