444 Transactions. 



Lissospira, which it disagrees with in almost every particular. I have in- 

 troduced (Proc. Mai. Soc. (Lond.), vol. x, p. 219, 1912) the genus-name 

 Brookula, with type the Kermadec species B. stibarochila, and the group 

 thus named is quite a large one, and well defined. 



Liotella ? neozelanica (Suter, 1908). [P. 160.] 



Sitter's Cyclostremella neozelanica is autoptically unknown to me, but 

 it is obvious that it is not a Cyclostremella. I have seen species somewhat 

 recalling Suter's figure and description, and until I know them better I 

 would class them as close relations of Liotella spp. 



My disposition of the species ranked by Suter in the families Liotiidae, 

 Vitrinellidae, and Cyclostrematidae (pp. 150-61) are as follows :— 



Transfer Liotia serrata Suter, 1908, and Liotia solitaria Suter, 1908, 

 to the genus Angaria Bolten, 1798, in the family Trochidae. Transfer 

 Cirsonella neozelanica Murdoch, 1899, to the genus Acmella in the family 

 Pomatiasidae. Transfer Pseudoliotia iui perforata Suter, 1908, to the genus 

 Leptothyra in the family Turbinidae. The remainder may be classed in 

 the family Liotiidae Iredale, as hereafter named : — 



Fam. Liotiidae Iredale. 

 Genus Liotella nov. 



Liotella poly pleura (Hedley, 1904). 

 rotula (Suter, 1908).' 



? neozelanica (Suter, 1908). 



Genus Elachorbis nov. 



Elachorbis eumorpha (Suter, 1908). 



subtatei (Suter, 1907). 



Genus Zalipais nov. 



Zalipais lissa (Suter, 1908). 

 Genus Cirsonella Angas, 1877. 



Cirsonella densilirata (Suter, 1908). 

 Genus Brookula Iredale, 1912. 



Brookula corulum (Hutton, 1885). 

 Genus Lissotesta nov. 



Lissotesta micra (Ten. -Woods, 1877). 



■ granum (Murdoch and Suter, 1906). 



There are many species and genera living in Neozelanic waters to reward 

 the worker who will undertake search for these delightful minutiae. I have 

 before me at this time more than half a dozen species representing genera 

 new to the Neozelanic list and others referable to the above-named genera. 



Subgenus Lunella (Bolten, 1798). [P. 162.] 



" Marmorostoma Swainson, 1840 ; type, T. porphyreticus Mart.," is 

 utilized by Suter in a subgeneric sense for Turbo smaragdus Martyn. This 

 name is untenable in this connection, as it was first proposed by Swainson 

 in the Zool. Illus., 2nd ser., vol. i, 1829, pi. 14, where he wrote, " From 

 the genera Turbo and Trochus of modern conchologists we have detached 

 all those species whose shells are closed by a calcarious [sic] operculum ; 

 and this group we propose to distinguish by the name of Marmarostoma." 

 He then named as type " Turbo chrysostomus L." 



In the " Treatise on Malacology " (1840, p. 215) Swainson amended 

 this proposal thus : " Before we had sufficiently studied this family we 



