384 Transactions. 



Caecum digitulum, Hedley. 



Ccecum digitulum, Hecllcv, Rec. Axistr. Museum, vol. v, p. 94, 

 fig. 21 in text, 1904. " 



It may be of interest to record the station of this species, 

 especially as all the records I can trace of this genus refer either 

 to dredged specimens or dead shells from shell-sand. 



In Lyttelton Harbour, under stones at high-water mark, 

 this species is common. Associated with it is Leuconopsis ob- 

 soleta, Hutton. There lives also a small bivalve which I have 

 not yet satisfactorily identified. The apparent reason of these 

 shells having been previously overlooked is their minute size. 

 These shells rarely occur in shell-sand, perhaps on account of 

 their station being almost beyond the limit of the force of the 

 tides. If this conclusion be correct, may not Ccecum amputatum, 

 Hedley, and Ccecum lilianum, Hedley. perhaps live on a similar 

 station '\ 



Specimens of Ccecum digitulum, Hedley, occur almost half 

 as long again as typical examples, and these specimens are 

 much more curved. Upon microscopic examination the length 

 appears to be due to a new growth of shell, owing to a fracture. 

 The majority of shells, also, do not taper as rapidly as Hedley's 

 description would imply, nor as his figure shows. 



Trophon pusillus, Suter. 

 Trophon pusillus, Suter, Trans. N.Z. Inst., vol. xxxix. p. 253. 



190o (1907). 



In shell-sand in Lyttelton Harbour there occurs nut un- 

 commonly a small Trophon. I could not reconcile it with 

 Trophon curia, Murdoch, the only New Zealand Trophon of 

 similar size. It was therefore with pleasure that I read the 

 description of the shell as above. The majority of dead shells 

 have the apical whorls missing and the sculpture worn, so that 

 the axial striation is almost unrecognisable. However, I had also 

 found livi' shells under stones, and these answered perfectly to 

 Suter's figure and details. As the outer lip of his specimens 

 is stated to have been broken, I may add that in the adult shell 

 there are halt a dozen well-developed teeth inside the outer lip. 



Limacina australis (Eydoux and Souleyet). 



Spiralis australis, Eydoux and Souleyet. 'Description som- 

 tnaire de quelques Pteropodes nouveaux on imparfaitement 

 connus," ' Revue Zoologique," t. hi, p. 237, 1840. Lima- 

 cinu australis (Eydoux and Souleyet), Pelseneer, Rep. Results 

 " Challenger," Zoo]., vol. xxiii. p. 25, pi. i. fig. C>, 1888. 

 From shell-sand from Lyall Bay, near Wellington, I sorted 



out a minute mollusc, which Mr. Hedley has identified for me 



