630 THE VOYAGE OF H.M.S. CHALLENGER. 



more than a slight swelling ; the pillar itself is very slightly oblique, and is straight, 

 narrow, with a sharp edge, behind which is a very slight and shallow furrow. H. 16 

 in. B. 01. Penultimate whorl, height 0-04. Mouth, height 0-08, breadth 0-05. 



This species is a little like Actceon austrinus, Watson ; but compared to that the form is slimmer, 

 the whorls are more laterally compressed and less convex, the shell is smaller, and the apex is more 

 truncated. It a good deal resembles Actceon levidensis, S. Wood, but has a shorter body-whorl 

 and mouth ; the rise of the whorls in the spire is more scalar, and the apex is stumpier, with a 

 coarser tip. 



8 Actceon (Buccinuhis) affinis (A. Adams) (PI. XLVII. fig. 1). 



Solidula affinis, A. Adams, Monog. on Actaeon, &c, Proc. Zool. Soc. Lond., 1854, p. 61, sp. 7. 

 Buccinulus affinis, Angas, Port Jackson Moll., Proc. ZooL Soc. Lond., 1867, p. 225, No. 250. 

 „ „ Brazier, Proc. Linn. Soc. New South Wales, 1878, vol. ii. p. 77. 



April 17-18, 1874. Port Jackson, Sydney. 2 to 10 fathoms. 



Habitat. — China Seas, New Ireland, Borneo, Philippines (Adams) ; Torres Straits, 25 

 to 30 fathoms; New Ireland, washed up after gales; Port Jackson, 2 to 15 fathoms 

 (Brazier) ; Port Essington, Morton Bay (British Museum) ; also Japan (Angas). 



Mr Edgar A. Smith (" Alert " Collections, p. 86) considers this a small form of Actceon solidulus 

 (Linne). They seemed to me fairly distinct. I do not know what is Mr. Angas' authority for 

 ascribing this species to Japan. Dunker does not give it in his Japan Index. 



9. Actceon {Buccinulus) insculptus (?) (Reeve). 



Tornatella insculpta, Reeve, Monog. of Tornatella, Proc. Zool. Soc. Lond., 1842, p. 62, sp. 12. 

 „ ,, Reeve, Conch. Icon., voL xv. pL iii. fig. 15. 



September 8, 1874. Flinders Passage, Torres Strait. 7 fathoms. 



Habitat. — Masbate in the Philippines (Reeve). 



The solitary specimen of this species is in a very bad state of preservation, and the determina- 

 tion cannot be regarded as very certain. 



10. Actceon [Buccinulus) niveus, Augas. 



Buccinulus niveus, Angas, New Austral. Shells, Proc. ZooL Soc. Lond., 1871, p. 19, pi, i. fig. 27. 



April 17-18, 1874. Port Jackson, Sydney. 2 to 10 fathoms. 

 Habitat. — Port Jackson (Angas). 



