’ 308 
Morccava’ 
Acteorbis kimberi, n.sp. Pl. xxix., figs. 1, 2. 
Shell minute, translucent, oval. Whorls 24. Spire 
very low. Apex blunt; protoconch half a whorl, its apex 
buried, smooth, rounded, marked off from the spire-whorl by 
a scar. Suture impressed, slightly excavate. Periphery 
sharply carinate. Base very flatly rounded, and pressed flat 
at the carina. Umbilicus very wide and not defined.  Aper- 
ture roundly oval, nearly on the basal plane; outer lip uni-: 
formly round, simple, thin, pinched into a minute gutter close 
to the suture; inner lip is a thin glaze over the body-whorl. 
Columella slightly arcuate, its edge posteriorly expanded and 
reflected over the umbilicus. Sculpture: crowded fine micro- 
scopic curved accremental lines; on the base more valid and 
fewer, and as radiating curved wrinkles, which faintly crinkle 
the carina. 
Dim.—Greatest diameter, 3°7 mm.; smallest, 2°9 mm.; 
height, 1°2 mm. 
Locality.—Aldinga (Kimber). Dredged in St. Vincent 
Gulf in about 20 fathoms (Verco). 
Diagnosis.—It is allied to A. angasi, Adams, but has not 
the distant tubercles on the carina. 
It is named after the collector who found it. 
Gyrtilplle Foresta runcinata, Watson. PI, xxix, fig. 14. 
Turritella runcinata, Watson, Proc. Linn. Soc., Lond., 1881, 
vol. xv., p. 218; Chall. Zool., 1886, Gasteropoda, vol. xv., p. 475, 
pl. xxx., fig. 3. 
An individual of 38 mm. in length was dredged alive. 
The radula is exceedingly small compared with the size of 
the shell. It has a somewhat quadrate rachidian tooth, finely 
denticulated, along the edge of its upper border, bent forward 
at a sharp angle. ‘The single lateral is transversely rhom- 
boidal, about twice as large as the central, and is also finely 
denticulate along the free edge of its bent-forward upper mar- 
gin. The two marginals, elbowed about their middle, have 
a flange projecting from their upper border, and finely den- 
tate. Miss J. Donald, in a paper on “Some Recent Gastero- 
poda, referred to the Family Turritellide, and their Supposed 
Relationship to the Murchisoniidz,” read January, 1900, and 
published in Pro. Mal. Soc., London, 1901, p. 47, ete., men- 
tions 7’. runcinata, Watson, among other species of Turritella, 
and from their deep labral sinus suggests their affinity with 
Murchisonia. The Pleurotomariide and Murchisoniidze 
are regarded as belonging to the Rhipidoglossa. But the 
radula of 7. runcinata, Watson, plainly places it among the 
Teenioglossa, and allies it with the ordinary forms of 7'urri- 
tella, rather than with Murchisonia. Tf therefore Murcha- 
ZL x7 


