SuTEK. — On Ken- Ze.aiand Molhcsca. 123 



&c., ill common with Tasmania, as shown by the writor quite 

 recently. 



5. Limnaea tenisoni, Clessin, sp. em. (tennissoni) , 1886, 

 Was described and figured by its author in Conch. Cab. (2), 



i., Abth. 17, p. 371, pi. lii., fig. 11. Clessin's reason for 

 placing this shell in the genus Physa I do not understand, 

 for description and figure clearly show that it is a Limncea ; 

 and I do not think that Clessin is unable to separate the two 

 genera. Clessin's species seems to differ not very much from 

 Limncea alfredi, described and figured by the writer (Trans. 

 N.Z. Inst., vol. xxii., p. 229, pi. xv., figs. 17, 17a), and I propose 

 to make L. alfredi a variety of L. tenisoni, the latter having 

 priority of publication. 



Mr. Clessin and other European authors would greatly 

 oblige the writer by sending him a copy, or at least a note, 

 whenever they publish descriptions of new species of terrestrial 

 and fresh- water shells from New Zealand; and they may expect 

 reciprocity. 



6. On some Species of BuUinus, Adanson, em. (Bulinus). 

 Bullinus novce-seelandice, Clessin, sp. 1886, is another addi- 

 tion of Clessin's to our fauna, though the specific name is 

 preoccupied by Sowerby. According to his description and 

 figure (Conch. Cab. (2) i., Abth. 17, p. 372, pi. liv., fig. 7), it 

 is, in my opinion, identical with B. variabilis, Gray. Most 

 species of our Bullinus are so variable that the creation of 

 new species is a very easy matter ; but it is highly deplorable 

 if this is done, as it seems to have been the case in several 

 instances, based on a few specimens, and from one locality 

 only, as there is no possibility to estimate the range of varia- 

 bility of the species. 



By comparing many specimens, and from different localities, 

 I came to the conclusion that B. tahulatus, Gould, sp. 1848, 

 and B. moesta, H. Adams, sp. 1861, are one and the same 

 .species. The distinction of species by the keeling of the 

 whorls is quite untenable, and every gradation of it may be 

 observed. 



Two species of Bullinus were brought to light by Mr. 

 Charles Hedley — viz., B. coromandelicus, Dunker, sp. 1862, 

 and B. hochstetteri, Dunker, sp. 1862, which were omitted 

 from former lists of our mollusca. I have but little doubt that 

 both must be considered as identical with 5. tahulatus, Gould. 



7. Athoracophorus, Gould, 1852. Plate XIV., figs. 6-9, and 



Plate XV., figs. 10, 11. 



In the "Enumeration of the Janellidce," published by Mr. 

 Charles Hedley in the last volume of our Transactions, the 



