470 Transactions. 



P. 327 : Homalocantha Morch. Type: scorpio L. 



Favartia nov. Type : breviculus Sow. 

 P. 328 : Muricidea Swains. Type : hexagonus L. 



Hexaplex Perry. Type : cichoreus Gmel. 

 P. 329 : Bassia nov. (ex Bayle MS.). Type : stainforthii Reeve. 



Phyllonotus Swains. Type : imperialis L. 

 P. 330 : EuphyUon nov. Type : monodon Sow. 



Chicoreus Montf. Type : ramosus L. 

 P. 331 : Ocinebrellus nov. Type : eurypteron Reeve. 



Tritonalia Flem. Type : erinaceus L. 



Gracillipurpura nov. Type : strigosus L. 

 P. 332 : Lyropurpura nov. (ex Bayle MS.). Type : crassicostata 

 Desh. (foss.). 



Ocinebrina nov. Type : corallinas Sacchi. 



Hanetia nov. Type : haneti Petit. 

 P. 333 : Pseudomurex Monts. Type : bactreatus Brocchi. 



Heteropurpnra nov. (ex Bayle MS.). Type : polymorphus 

 Bron. (foss.). 



Vitularia Swains. Type : vitulinus Lain. 



Crassilabrum nov. Type : crassilabrum Gray. 

 P. 334 : Forreria nov. Tvpe : belcheri Hinds. 



Jatova nov. Type : jatov Adamson. 



Pteropurpura nov. Type : macropteron Desh. 



Cerastoma Conrad. Type : nutallii Conr. 

 P. 335 : Pterochelus nov. Type : acanthopterus Lam. 



Marchia nov. Type : clavus Kien. 

 P. 336 : Pteronotus nov. Type : pinnatus Wood. 



Purpurellus nov. Type : gambiensis Reeve. 



Poropteron nov. Type : uncinarius Lam. 



Then followed a subdivision of Typhis, which does not much concern us 

 at the present, and which seems to be less justified : for it must be ad- 

 mitted that Jousseaume's groups are fairly natural, and exist in nature, 

 though I do not consider them as all of generic value. 



It will be noted that Jousseaume used Purpura as of Tournefort, Hau- 

 stellum as of Klein, and used Adamson's species-names. The three authors 

 named do not now enter into systematic conchological work, as they are 

 all pre-Linnean. 



The earliest post-Linnean use of the genus-name Purpura is by Martyn, 

 who utilized it in the Tournefortian sense, though in connection with an 

 exotic species, as noted above. 



The three Neozelanic species are very difficult to place, being somewhat 

 aberrant however they are viewed. I have been puzzled to generically 

 locate Murex zelandicus Quoy and Gaimard, and on Mr. E. A. Smith's 

 suggestion I leave it for the present under Murex as here restricted, but 

 would emphasize the use of Jousseaume's name Poirieria in connection 

 with it subgenerically, as it shows very distinct characters, and it stands 

 out wherever it is placed in the family Muricidae. 



Murex octogonus Quoy and Gaimard is just as peculiar, and it does not 

 match easily with any other species. Jousseaume placed it with Murex 

 stainforthii Reeve in the genus Bassia proposed for this shell. Bassia is, 

 however, invalid. In the British Museum collection it has been placed 

 under Ocinebra, but it is obviously out of place, and the radula shows the 



