12 Frederick Chapman: 



Recent Example. — The recent record of dredged specimens from 

 New South Wales by Hedley^Jo is of great Interest to the student of 

 persistent types. The localities given are: 63-75 fathoms off Port 

 Kembla; 54-59 fathoms off Wata Mooli; 100 fathoms, 16 miles E. of 

 Wollongong. 



Hedley states that it " corresponds with actual fossil shells from 

 Muddy Creek, with which I have compared it." One example was 30 

 Tnm. in diameter, and apparently half-grown. 



Fam. CYPRAEIDAE. 



Genus Cypraea, Linne. 

 Cypraea sifhonata, sp. nov. (Plate III., Fig. 16.) 



Description. — Based on cast of shell. Body whorl inflated, sub- 

 :globular pyriform; spire not exsert, rather depressed. Anterior pro- 

 longation of aperture very extended, nearly as long as the body whorl, 

 produced in a straight line in the plane of the shell base (apertural 

 surface); posterior canal produced as in Cypraea sphaerodoma, Tate. 



Dimensions. — Length of body whorl without prolongations, 61 

 mm.; width of body whorl, 61 mm.; height, 50 mm.; length of anterior 

 prolongation, 56 mm. 



Observations. — This shell, here represented by a well-preserved 

 and complete cast, is of the type of Tate's C. sphaerodoma.'^^ The 

 remarkable and extensive anterior channel merits specific distinction. 

 The longest anterior extension in C. spJiaerodoma is, so far as I have 

 •seen, never more than one-fourth the length of the body whorl, and 

 is always obtorted, never in a plane with the base. 



Occurrence. — Tertiary (Janjukian). Below Overland Corner (left 

 l)ank), and second cliff showing strata, below Waikerie, Murray River, 

 South Australia. From the upper part of the cliff below the Kalimnan 

 l)eds. Pres. and collected by Mr. F. A. Cudmore. 



Genus Erato, Risso. 

 Erato obesula, sp. nov. (Plate III., Fig. 18.) 



Description. — Shell rather small, subrotund, spire small and de- 

 pressed. Body whorl inflated. Outer lip thick, smooth, inner lip with 

 one strong, curved plait. Aperture subcrescentic, moderately wide, 

 canaliculate anteriorly. Surface polished, with faint folds in the line 

 of growth. 



Dimensions. — Length, 4.8 mm. Width, 4.25 mm. 



Observations. — This species is by far the broadest shelled Erato 

 from the Victorian Tertiaries. Its striking shape and smooth outer 

 lip separate it from all previously described Eratos from this part 



20. Mtem. Austr. Mus.rMem. iv., pt. 6, 1903, p. 357. 



21. Trans. R. Soc. S. Australia, vol. xiii., 1890, p. 209. Also vol. xiii., 

 supplement, 1892, pi, viii., fig 5. 



