143 
NOTES ON SOUTH AUSTRALIAN MARINE MOLLUSCA, WITH 
DESCRIPTIONS OF NEW SPECIES.—PART III. 
By Jos. C. Verco, M.D. (Lond.), F.R.C.S. (Eng.), ete. 
[From “Transactions of the Royal Society of South Australia,” 
vol. «xa., 1906.] 
[Read May 1, 1906.] 
Puare IV. YZ a Ze 
Cingulina spina, Crosse and Fischer. 
Turritella spina, Crosse and Fischer, Journ. de Conch., 1864, 
p. 347; 1865, p. 44) t. 3, figs. 12-14, type locality, St. Vincent 
Gulf; Aclis tristriata, Ten. Woods, Proc. Roy. Soc. Tasm., 1877, 
p. 150; type locality, N.W. Coast, Tasmania; No. 220, Handlist 
‘of Aquatic Moll. of S. Aust., Adcock, 1893. 
\ 
\ 
This species varies greatly. It may be very attenuate, or 
comparatively wide; uniformly subulate or posteriorly spin- 
dle-shaped ; have valid or obsolete axial strie ; a smooth base, 
or with numerous sublenticular spiral grooves, or two slight 
spiral undulations. The last whorl may be very ventricose. 
A more or less valid lira may lie in the suture. The cinguli 
are usually nearly equal, but the central one may be more 
developed, and the suture be wide and deep and distinct. 
Cingulirla diaphana, spec. nov. Pl. iv, fig. 11. BK Oe 
Shell thin, diaphanous. Protoconch asymmetrical 
smooth. Whorls exclusive of this six, medially carinate, 
-with seven valid spiral lire, equally distant on the penulti- 
mate, scabrous from microscopic accremental striz, obliquely 
receding from the suture. Suture well marked, slightly 
channelled. Body-whorl with a stouter lira at the periphery, 
and a deeper sulcus below it, and seven basal lire less valid 
than those above, base sloping. Aperture fusiformly lozenge- 
shaped, slightly contracted behind, and narrowly effuse in 
front. Outer-lip simple. Columella slightly convex pos- 
teriorly uniformly concave throughout the anterior three- 
fourths; inner-lip complete. 
Length, 2'1 mm.; breadth, ‘7 mm.; aperture, “6 mm. 
\. © Hab.—Henley Beach, one example in the latig Prof. 
Tate’s collection, labelled “Mathilda pagodula.” One other 
specimen dredged in deep water St, Vincent Gulf. 
cate LEF Every, jun. 3G yy 
Scalaria aculeata, Sowerby, Proc. Zool. Soc. Lond., 1844, p. 
12; Thes. Conch., vol. i., p. 86, sp. 18, pl. xxxii., figs. 35, 36, 37, 
1847; Tryon, Man. Conch., vol. ix., a 63, pl. xiii., figs. 90, 91, 
1887; No. 192, Handlist of Aqnatic Moll. of 8. Aust., 1893; 8. 



