354 
NAUTILOIDEA. 
cited as Nautilus {Aturia) zujzag” Sow. Whether it is the Aluria 
Aturi of Basterot, as exemplified in the Dax specimens, or some 
other species would be almost impossible to determine from such 
imperfect material. The British Museum specimen (Xo. 73358) is 
said to have come from the South of France. Some of my refer- 
ences to Aturia Aturi are, from the nature of the case, more or less 
doubtful. Among these are the citations from Defrance, d’Archiac, 
Pictet, Ooster, and others, especially where no figures are supplied. 
The present species is distinguished from Aturia ziczac, J. Sowerby, 
by its much more compressed whorls and less rajudly expanding 
shell, and by its more numerous septa. These distinctions have 
been observed in shells of equal size belonging to the two species 
in order that a fair comparison might be made. 
Horizon. London Clay (Lower Eocene). Miocene. 
Localities. Dax, Saubrigues (Landes), Bordeaux (Gironde), France * ; 
Turin, Italy ; Malta. 
Represented in the Collection by numerous examples. A specimen 
from Dax (Xo. 34385) and another from Saubrigues (Xo. 3138(>) 
were presented bj’ John Sharp, Esq. Two specimens from Bordeaux 
(Xos. 36838 «, 36838 6) were presented by S. P. Pratt, Esq. 
Yar. Australis, M‘Coy. 
[See supra, p. 336, fig. 71 6.] 
1862. Nautilus ziczac, J. E. Woods, Geological Observations in South 
Australia, p. 83, woodcut. 
1867. Aturia Australis, M‘Coy, On the liecent Zoology and Paheonto- 
logy of Victoria, Ann. Mag. Xat. Hist. ser. 3, vol. xx. p. 192. 
1874. Aturia Australis, M‘Coy, in Geol. Surv. of Victoria ; Report of 
Progress by R. Brough Smyth, p. 36. 
1876. Aturia ziczac (Sow. sp.), var. Australis (M‘Coy), M‘Coy, Geol. 
Surv. of Victoria ; Prodr. of the Palaeontology of Victoria, 
decade iii. p. 21, pi. xxiv. 
1878.-H^«<rm ziczac, Etheridge, Jun., Cat. of Australian Fossils, p. 171. 
Sp. Char. “ Sides flattened ; periphery narrow, rounded ; surface 
with fine arched striae, the convexity forwards on the sides, back- 
wards on the periphery, v Diameter from 1 to 4| inches, propor- 
tional greatest width of an inch, length of aperture at 
middle (H^Coy.) 
Remarks. M‘Coy remarks with reference to the present variety: — 
“ It is with the compressed Miocene variety found at Dax, named 
N. Atari by Basterot, rather than with the more ventricose original 
According to Mr. G. F. Harris the beds at these localities are of Oligocene, 
not Miocene, age. See Geol. Mag. dec. iii. vol. vii. 1890, p. 24. 
