i 



54 



TKOCEKDINGS OF THE MALACOLOGICAL SOCIETT. 



The synonymy of the species is as follows : — 



Clioxella tripartita (Weinkaviflf). 



1876. Pleurotoma {Clavatula) tripartita (E. Smith, MSS.), TVeiukauflf, 



Conchyl. Cab., p. 120, pi. xxvi, figs. 12, 13. 



1877. P. {Ciionella) hipartita (typographical error for tripartita), Smith, 



Ann. Mag. Nat. Hist., 1877, vol. xix, p. 500. 

 18S4. Clavatula {Ciionella) bipartita, Smith : Tryou, Man. Concb., 



vol. vi, p. 234. 

 1884. C. {Perrona) obesa, Reeve : Tryon (partirn), op. cit., p. 232, pi. viii, 



fig- 4. 

 1892. Pleurotoma {Ciionella) bipartita. Smith: Sowerby, Marine Shells 



of South Africa, p. 6, pi. iv, fig. 83. 

 1904. Ciionella bipartita, Smith, Journ. Malac, vol. xi, p. 22. 



Neither of the figures quoted above is of much use. That in The 

 Marine Shells of South Africa is simply a caricature, and that in 

 Weinkauft's work is not much better, since it does not show the bipartite 

 feature of the whorls. 



With regard to the relationship of Pleurotoma obesa of Reeve to this 

 species, as suggested by Tryon, I would merely repeat Mr. Sowerbys 

 observation that " it is quite unlike it, and certainly belongs to a diflereut 

 section of the genus ", namely Perrona. 



E. A. Smith. 



Ox THE OCCCREEXCE OF PiSIDIUM ITlBEnyiCVM IX SorTHERX SwEDEX 



{Read lith April, 1912.) — This species was described by AVesterlund in 

 1894 from specimens found by Dr. R. F. Scharflf in Lough Nagarriva, 

 about 4 miles north of Glengarrif, just over the boimdary in co. Kerry. 



A few years later it was taken by Mr. Stelfox in Lough Namaddra and 

 another small unnamed tarn, both close to Lough Nagarriva but within 

 the CO. Cork boundary. 



More recently I identified the species among specimens sent by 



