336 STUDIES ON AUSTRALIAN MOLLUSCA, xi., 



Perhaps the record by Angas* of M. speciosa A. Adams, from 

 the Lane Cove, is another error for amcena. 



RlNGICULA DENTICULATA Gould. 



Ringicula denticulata Gould, Proc. Bost. Soc. Nat. Hist., vii., 

 1860, p.325. 



Ringicula caron Angas (not Hinds), Proc. Zool. Soc, 1871, 

 p.98. 



The original of Gould's description was obtained in Port Jack- 

 son by Dr. W. Stimpson, and is still preserved in the National 

 Museum at Washington. In the British Museum are four 

 exactly similar specimens, probably cotypes, labelled " R. denticu- 

 lata, Otia, p. 121, Port Jackson, M.C." 



Angas has recorded Ringicula caron Hinds, as dredged by 

 Brazier in 10 fathoms off Goat Island, Sydney Harbour. There 

 is in the British Museum one, perhaps type, but not so marked, 

 labelled " R. caron Hinds, P.Z.S., 1844, p 97, Str. of Malacca. 

 M.C." This is smaller than denticulata, with widely spaced, 

 engraved spirals, and sharply pointed spire. Angas presented, 

 to the British Museum, the shell he had identified as R. caron 

 Hinds. By comparison of the authentic material described 

 above, this is certainly not R. caron, but is certainly R. denticu- 

 lata. The record of Angas is, therefore, to be erased. 



Ringicula doliaris Gould. 



Ringicula doliaris Gould, Proc. Bost. Soc. Nat. Hist., vii., 1860, 

 p.324; Id., Watson, Chall. Rep. Zool., xv., 1886, p.634, PI. xlvii., 

 fig.8. 



Ringicula arctata Angas (not Gould), Proc. Zool. Soc, 1871, 

 p.98. 



In the British Museum there are four, probably cotypes, of R. 

 doliaris Gould. These are light and thin, like my R. semisculpta, 

 but have spirals above as well as below, and a tooth on the body- 

 whorl. Angas catalogued R. arctata Gould, as taken by Brazier 

 off Goat Island, Sydney Harbour. The Sydney specimen, which 

 Angas presented to the British Museum as R. arctata, does not 



•Angas, Proc. Zool. Soc, 1871, p.98. 



