364 



MALACOLOGICAL SECTION 



OF THE 



flogal ^ocut}} of ^outlj l^ustralia (Jnrorporat^ii). 



ANNUAL REPORT FOR 1905-6. 



During the year 1905-6 the Section continued the revision of 

 the census of the marine mollusca of South Australia, and the 

 families Naticidm, Amnicolidce, UissoidcB, Turrit ellidce, Scala- 

 ridct, V ermetidWf and CerithiidcB were passed in review. It 

 was then considered advisable, on account of the large amount 

 of new and undescribed material dredged during a recent 

 vacation trip by tlie Chairman (Dr. Verco), to reconsider the 

 list of gastropoda already reviewed. The result was that seve- 

 ral known species new to South Australia were added to the 

 list, and new species were described. Following Zittel's order 

 the new revision now covers the families Fatellidce, Acmctidce, 

 HaliotidcE, Scissurellidce, Gocciilinidce, and Fissurellidcr. The 

 following list, which forms the first of a series, gives the South 

 Australian species, with the original reference, and some of 

 the synonyms : — 



Family PATELLID^. 



1. Helcioniscus tramosekicus, Martyn. Universal 

 Conchology, vol. i., pi. xvi. P. diemcnensis, Philippi ; F. 

 va ri cgata , Reeve. 



2. Helcioniscus illibratus, Verco.' Trans. Roy. Soc. S. 

 Aust., 1906, vol. XXX., p. 205, pi. x., f. 6 to 14. 



3. Patella ustulata, Reeve. Conch. Icon., Reeve, 1855, 

 vol. viii., pi. xxxi., f. 88, a, b. P. tasfuanira, Ten.-AVoods. 



4. Patella aculeata, Reeve. Conch. Icon., Reeve, 1855, 

 vol. viii., pi. xxxii., f. 90. P. squamifera. Reeve. 



5. Patella hepatica, Pritchard & Gatliff. Proc. Roy. 

 Soc. Vict., 1902 (1903), vol. xv. (n.s.), part 2, p. 194. P. 

 striata, Pilsbry (non Quoy & G.). 



6. Patella Chapmani, Ten. -Woods. Proc. Roy. Soc. 

 Tasm., 1875 (1876), p. 157. Acmmi nlha. Ten. -Woods. 



7. Nacella parva, Angas. Proc. Zool. Soc. Lond., 1878, 

 p. 862, pi. liv., f. 12. 



8. Nacella compressa, Verco. Trans. Roy. Soc. S. 

 Aust, 1906, vol. XXX., p. 208, pi. viii., f. 11-12. 



