225 
1877. Liotia lamellosa (pars.), Ten.-Woods, op. cit., p. 96. 
1878. Liotia subquadrata, Ten.-Woods, P.L.S., N.S. Wales, ii., 
p. 236. 
As already pointed out Cyclostrema immaculata was founded 
on a very immature condition (3 mm. diam.) of a Liotia, the 
adult form being presumably L. subqguadrata; the absolute 
inadequacy of the diagnosis makes it desirable to suppress the 
name. In the same year the author described a Table Cape 
fossil as Z. lamellosa, and in an appended note stated that a 
living example had been dredged off the Tasmanian coast. On 
comparison of the recent and fossil specimens I found differential 
characters to obtain such as are set forth in P.L.S. il, p. 236, 
wherein Mr. Woods has applied the name of ZL, subquadrata to 
the living species. 
Habitat.—Tasmania! and South Australia!; a rare shell, 
Middleton and Macdonnell Bay (A. Adcock ! ). 
Liotia densilineata, spec. nov. 
This species has the general aspect of an immature Z. australis; 
the revolving lire are almost obsolete, wholly so on the base ; the 
transverse threadlets are depressed, very numerous, and crowded 
so as to obliterate entirely the cancellate ornament ; the axial 
threadlets are fasiculated at both sutures giving rise to a corona 
on the anterior whorls and subspinose developments on the 
earlier ones; the umbilicus is large, its margin coronated by the 
fasciculation of the transverse threadlets. Aperture circular, 
outer margin slightly dilated but not varicose (the shell is 
probably not yet adult) ; columella margin is detached from the 
umbilical rim ; the operculum is that proper to Ziotia. 
In L. subquadrata, the transverse ornament consists also of 
fine threadlets, but its revolving ridges are few and bold, impart- 
ing a quadrate outline to the last whorl. 
Max. diam., 7; min. diam., 5; height, 4:5. 
Habitat. — D’Entrecasteaux Channel, Tasmania (very rare). 
One example received from Mr, W. L. May, which is much cor- 
roded, and altogether its condition does not permit of a satis- 
factory pictorial representation. 
List oF SPECIES-NAMES EXCLUDED OR SYNONYMIC. 
Angasi, Crosse = Pseudoliotia micans. 
Compacta, Petterd = L. annulata. 
Discoidea, Ten.-Woods= L. Mayana. 
Gowllandi, Brazier, is a Pseudoliotia. 
Loddere, Petterd, is a Lodderia. 
Minima, Ten.-Woods, is a Lodderia. 
