42 . 
LAND SHELLS. 
S.A. NAT.. 
VOL. xvm. No. 2 
Shell similar in shape but much larger, last whorl a little 
more inflated, coloration uniformly green, sculpture 
delicate radial plicae, sometimes decussate, umbilicus 
narrow, sometimes completely closed by reflected 
columella perinjlatum. 
Shell a little broader, no decussation, umbilicus as chink 
only, spire somewhat conical impletum. 
Shell not so broad, without any decussation, umbilicus closed 
by appressed columella, green, lips not as expanded 
as in preceding pedasum. 
Shell large, spire more obtuse, greenish with an indistinct 
peripheral band, umbilical chink present, a feeble 
radial subordinate sculpture present, but no decuss- 
ation remissum. 
Shell large, spire obtuse, similarly banded as the preceding, 
umbilical chink present, radial ribs present but 
accompanied by a granose sculpture corinum. 
Shell very small, globose, thin, vitreous, deep green, ill 
defined radial ribbing, umbilicus almost hidden, 
outer lip not much reflected pumilio, 
Sinumelon nullarboricum. 
1879. Helix millarborica Tate, Trans. Proc. Phil. Soc. Adelaide, 
South Austr., 1878-9, p.l33, pi. VI, ff. l,ab, ex 126 
nom, nud, Bunda Plateau, Nullarbor Plain, South 
Australia. 
Sinij,melon bednalli. 
1904. Xanthomelon bednalli Ponsonby, Proc. Mai. Soc. (Lond.), 
V^ol. VI, p.l82, fig. in text, September. MacDonnell 
Range, Central Australia. 
This may be a local strongly decussated relation of the 
widely spread ^^perinjlata^ group, because any large inflated 
Sinumelon from the interior has been called permflata. Ponsonby 
compared it with granditubercxdata Tate, with which it has little 
aflinity. It should be noted that Pfeiffer^s permflata was de- 
scribed as “decussated,” and his specimen was from the Mac- 
Donnell Range so that bednalli may be a synonym of the true 
perinflata. 
Sinumelon godfreyi. 
1933. Sinumelon godfreyi Iredale, Rec. Aust. Mus., \ol. XIX, 
p.S2, August 2, new name for 
J862. Helix angasiana Pfeiffer, Journ. de Conch., Vol. X, p.228, 
p.X, fig. 2, July 1. Near Lake Torrens, South Australia. 
Refigd. Angas, Proc. Zool. Soc. (Lond.), 1876, p.268, 
, pi. XX, figs. 13, 14. 
