466 Transactions. 



of H. Bivona-Bernardi (Efi'em. Sci. Litt., vol. ii, p. 8, 1832) is P. striatula 

 nov. = B. maculosum Gmel. That shell was as unlike Pisania reticulata 

 as it. was dissimilar from my Jeannea. It was obvious that Adams's species 

 was unhappily located. Mr. C. Hedley was at that time in England, working 

 through the Australian shells in the British Museum, so I drew his attention 

 to this fact. He at once informed me that he had always been dubious of 

 the generic selection, and that to his eyes reticulata suggested Colubraria. 

 Upon making comparisons I at once agreed that such would be quite an 

 acceptable relationship, and, moreover, noted that Mr. Edgar Smith had 

 arranged some Australian shells in this genus. Thus Colubraria bednalli 

 (Brazier), C. coxi (Brazier), and C. angasi (Brazier) are all closely related 

 to Pisania reticulata A. Adams, the first-named being very near. My own 

 specimens of P. reticulata A. Adams show obsolete varices, and the reti- 

 culate sculpture is characteristic of Colubraria and foreign to Pisania. 



In the Smith. Miscell. Coll., vol. xlvii, 1904, Dall proposed the family 

 Colubrariidae to cover a series of shells varied and showing a resemblance 

 to Tritons, but differing in being rhachiglossate, not taenioglossate. As a 

 subgenus of Colubraria was ranked Cumia Bivona, 1838, with type Triton 

 reticulatus Blainville, and as sections were named Maculotriton, Monostiolum, 

 Caducifer, and Taeniola, and a subgenus Phrygiomurex. The Australian 

 species fall into Cumia, angasi being near reticulatus Blainville. As a 

 consequence of this conclusion, Pisania reticulata must be renamed. How- 

 ever, in the Journ. Conch., vol. xi, p. 289 et seq., 1906, Dall discussed " The 

 Early History of the Generic Name Fusus," pointing out that this name 

 was first proposed by Helbling in the Abhandl. Privat Bohni, vol. iv, 

 pp. 116-20, 1779, and that four species were included, the last named 

 being Murex (Fusus) intertextus Helbling = T. reticulatus Blainville. As 

 causing the least confusion, this was selected as type of Fusus Helbling, 

 and this antedates Cumia and also Colubraria. Dall suggests that these 

 two may prove generically separable, and then Colubraria may be preserved 

 for the larger shells. This, however, does not much concern us, as the 

 shell under question is closely related to Cumia and not Colubraria. The 

 specific name reticulata A. Adams cannot, however, be preserved, so that 

 I propose the new name Fusus mestayerae for Pisania reticulata A. Adams. 



The other three names I noted— bednalli, coxi, and angasi — all of Brazier, 

 may need emendation when transferred to Fusus, though I have noted 

 that Hedley has ranked the last two, I believe, as synonyms of antiquatus 

 Hinds. 



Genus Pollia (Sowerby, 1834). [P. 393.] 



Suter has retained the genus Cantharus Bolten, 1798, for two Neozelanic 

 species, citing as a synonym " Pollia Gray, 1839 (in part)." One of the 

 species is placed under Cantharus s. str. ; the other under Tritonidea Swain- 

 son, 1840, treated as a subgenus. It seems certain that Suter was not 

 acquainted with C. tranquebaricus (Gmel.). otherwise he would not have 

 separated C. fuscozonatus Suter from C. colensoi Suter to have placed it 

 with that species. Most workers now admit " Tritonidea " as a distinct 

 genus, and it is quite impossible to admit subgeneric distinction between 

 the two Neozelanic species. Both would fall into " Tritonidea " in prefer- 

 ence to Cantharus, and I would there place them. The name Tritonidea 

 is, however, antedated by Pollia Sowerby, and use of the latter must be 

 advocated. I showed (Proc. Mai. Soc. (Lond.), vol. x, p. 221, 1912) that 

 Pollia was introduced in Sowerby's Gen. Rec. Fossil Shells, vol. ii, pi. 237 ; 

 fig. 12, 1834, and that the type (the only species) there mentioned was 



