So BIBLIOGRAPHY OF 1879. 



After a lengthy discussion of the various genera and their 

 value, the author concludes : first, that the Littorinido'. of Australia 

 so closely resemble the genus Littorina of Europe that they 

 cannot be ggnerically separated from it. Second, that the genus 

 Risella should be suppressed, as no permanent generic character 

 can be defined in it, and there is only one species, which is 

 extremely variable. Third, that the species known to some authors 

 as Tectaria pyramidalis is merely LUtorina with a double line of 

 granules, which feature does not entitle it to generic distinction, 

 since it shows it with many other species. If it be considered 

 that it is destitute of many of the defined characters of Tectaria, 

 Fourth, that the Australian Littorma Mauritiana is probably 

 identical with the European L. cceridescens, and that Z. ztczac, L. 

 unifasciata and imdulata are merely varieties. Fifth, that all the 

 Australian species have in the anterior aperture a groove or line, 

 often conspicuously light in color, which is in some way connected 

 with the organs of reproduction. 



Woods (Rev. J. E. Tenison, F.G.S.) — On some Australian 

 Shells described by Dr. A. Gould. — Proc. Linn. Soc. 

 New South Wales, 1878, vol. ii., p. 250 to 261. 



In this paper Mr. Woods reprints from the Proc. Bost. Soc, 

 Nat Hist., vol. ii., iii., vii. and viii. The species are Chiton 

 guercinus, C. Jugosis, C. fruticosus, C. platessa, C. incanus, Patella 

 dnnamo??iea, Haliotis crispata, all from New South Wales; 

 Amnicola badia and A. egenea from Bank's Peninsula, New 

 Zealand; Trochus sirius (:=young form of Caritiidea sqtmmifera 

 according to Mr. Woods) New Holland; Psammobia florida^ 

 Illawara, N. S. Wales; Cyclas egregia, N. S. Wales; Cyrena debilis, 

 New Holland?; Tornatina aptcina, Sydney; Cylichna 7-egularis, 

 Sydney (=C arachis Quoy and Gaim., according to Mr. Woods); 

 Emarginula (Clypidina) radiata, Sydney (Mr. Woods doubts if 

 this is disti»nct from E. australis Lam.); Ringicula detiticulata. 



