8 CHARLES HEDLEY 



differs by greater size, broader shape, more compact spire, shorter and more bent 

 canal. Seeing the variability of the genus, I distinguish this as new with some 

 diffidence, but the series before me is quite uniform, and T. coulmanengig is reported 

 from much deeper water, viz., 100 fathoms. As the handsomest novelty in the 

 collection, it is dedicated to the intrepid leader of the Expedition. 



The apex is of the pattern figured for T. coulmanensis. In aged specimens several 

 of the spire whorls are usually destroyed by erosion. The interlamellar spaces of the 

 last whorl are usually packed with sponges and diatoms, thus providing the shell 

 with an additional overcoat, a possible defence against chemical erosion. 



Trophon lonystaffi, Smith 



Smith, liep. Nat. Antarctic Exped., Gast., 1907, p. 3, Plate I, Figs. 3-3cZ (Plate I., 

 Fig. 14). 



Three specimens alive from twenty to eighty fathoms. 



As Mr. Smith observed, the upper whorls are more closely ribbed than the last. 

 This causes much dissimilarity between younger and older shells. An immature 

 shell 25 mm. in length is here figured. 



Philine apertissima, Smith 



Smith, Rep. Coll. Southern Cross, 1902, p. 208, Plate XXIV., Fig. 23. 

 Twenty living specimens from ten to twenty fathoms. 



Philine antarctica, Smith 



Smith, Hep. Coll. Southern Cross, 1902, p. 208, Plate XXIV., Fig. 1. 

 Six living specimens from ten to twenty fathoms. Others from stomach of fish 

 (Big-head, Trematomus). 



Clione antarctica, Smith 



Smith, Rep. Coll. Southern Cross, 1902, p. 210, Plate XXV., Figs. 7-8. 

 Two specimens from surface near Cape Royds. 



Limacina antarctica, Woodward 

 Smith, Rep. Coll. Southern Cross, 1902, p. 209. 



A few specimens from surface near Cape Royds. Their shells were dissolved by 

 the formed in which they were placed. 



Tritoniella belli, Eliot 



Eliot, Rep. Nat. Antarctic Exped., Nudibr., 1907, p. G, Figs. A, B. 

 Several specimens from twenty to fifty fathoms off Cape Royds. Some coils of 

 molluscan ova marked " 15-25 fath., 7/08 " probably belong to this species. 



