XOTES. 29 



important chapter on the " Bouchot " system of culture as practised in 

 France and on the east coast of Scotland. The results, however, obtained at 

 the home stations do not appear to have been altogether satisfactory. 



Hedley, C. — "A Shell Hunt Fortv Feet under the Sea." Naut. viii., p. 

 85-8S. 

 .\n interesting account of collecting in diver's dress at Port Jackson. 



Sterki, Von.- " On collecting /Vs/if/^f." Naut. viii., p. 113-114. 



BIOGRAPHY. 



Schuberg, August. — " Carl Semper," Arb. Zool. Inst. Wurzb. Vol. 

 iSg^, pp. i.-xxii. Portrait and Bibliography. 



NOTES. 



Note on the Synonymy of Plutonia, Stabile. — In the notes to his 

 Check-list of Slugs (Conchologist ii , p. 204) Professor T. D. A. Cockerell 

 calls attention to the fact that the name Plutonia has also been used for a 

 genus of Trilobites. In a foot note thereto, Mr. Collinge, assuming that the 

 Trilobites had priority, proposes to substitute Vitriplutonia for the genus, and 

 Vitriphitonnur for the sub-family. At Professor Cockerell 's request I ha\'e 

 looked up the references, and find that Plutonia stands for INIollusca, the 

 synonymy being as follows : — 



Plutonia Stabile; Atti Soc. Ital. Sci Nat. vii. (1S64) p. 121, noii. Hicks 

 1868 {noiu. nud.) Trilobita. 



Viquesndia Morelet ; Notice Hist. Nat. .\zores (1S60) non Deshayes (1857) 

 nee Fischer {i8^y) = Plutonia Morelet in litt. Type I', atlantica, 

 Morelet, loc. cit., p. 139, pi. t, fig. i. 



Vitriplutonia, Collinge, Conchologist ii. (1893) p. 204, note. 



[The Trilobite is to be re-christened Phttonides. — Ed.] 



(BV)' 



Sinistral Shells and Superstition. —The following remarks on left- 

 handed shells as luck-bringers are extracted from a letter: — As to the 

 " superstition," I heard it from one of the apothecaries at Port Blair, who told 

 me that some natives of India in Rangoon, on hearing that he was ordered to 

 Port Blair, begged him to send them a left-handed shell, if he could find an\-, 

 as they believed that these secured great wealth, immunity from drowning 

 and general good fortune (or long life) to their possessor.— A. H. Finn, 

 Bridport, Pagoda .Avenue, Richmond. 



New Pleistocene Mollusca from Crayford. — Last 3ear, while working 

 at the Pleistocene deposits at Crayford, I had the good fortune to discover 

 two species of mollusca not before recorded from that locality, viz. : —Liniax 

 agitstis and Littovina ntdis. Both species were represented by a single 

 example, now in the British Museum. Limax agrcstis has already been re- 

 corded from the I'leistocene at Grays ; while the example of Littoiina rudis 

 belongs to the brackish-water form still to be found in the Thames estuarv. — 

 A. S. Kennard, Beckenham. 



