PEESIDENl's ADDEESS. 81 



• Another apparent parallelism may be adduced, namely, the spiny 

 girdle of some Polyplacophora and the fringe of iridescent spicules 

 borne by the Sea-Mouse (Aphrodite). 



The remains of Polychseta, moreover, like those of the Mollusca, date 

 back to early Palaeozoic times. The tubes of Spirorhis (or kindred 

 genera) are found abundantly in the strata fi'om the Ordovician 

 onwards, and Seiptda from the Silurian. More important still was the 

 discovery by Dr. Hinde of detached jaws and toothed plates of forms of 

 Polychaeta 'Evvantia (JSunicites, Arabellites, CEnonites, etc.) inPalEeozoic 

 rocks, from the Ordovician to the Carboniferous, of Canada, Great 

 Britain, and Sweden {21, 22, 23), while they have also been found 

 by Mr. R. Etheridge, jun., in the Upper Silurian of New South 

 Wales {13). 



Such, then, so far as I am able to sum it up, is the case of Malacology 

 versus Paleeoconchology, and I here leave it to your judgement, 

 pausing only to cordially acknowledge the kind help I have received 

 on certain desired points from my colleagues. Dr. A. Smith Woodward, 

 Mr.E. A. Smith, I.S.O., Mr. Crick, Mr.Bullen Newton, and Dr. Caiman, 

 as well as from my friend Mr. Pace and others. 



Atjthoks and Works kefeered to. 



1. Barrande (J.) : " Systems Silurieu du Centre de la Boheme,'' vol. iii (1867). 



2. Bernard (F.), " Eecherches ontogeniques et morphologiques sur la Coquille des 



Lamellibranches " : Ann. Sci. Nat., ser. viii, Zool., torn, viii (1898), Nos. 1-3. 



3. Bradley (F. H.) : Eeport of the Geological Survey of Illinois, vol. iv (1870). 



4. " Description of two new Land Snails from the Coalmeasures " : Amer. 



Journ. Sci., ser. iii, vol. iv (1872), pp. 87-88, figs. 



Note on Anomphahts Meeki'^ : op. cit., ser. iii, vol. vii (1874), 



p. 151. 



5«. Brooks (W. K.), " The origin of the oldest Fossils and the discovery of the 

 bottom of the Ocean " : Journ. Geol., ii (1894), pp. 455-479. 



6. CoNKLiN (E. G.), " The Embryology of Grepidula " : Journ. Morphol., vol. xiii 



(1897), pp. 1-226, 9 pis. 



7. Conrad (T. A.), " Third Annual Eeport of T. A. Conrad on the Palajontological 



Department of the Survey" : [4th] Annual Eeport of the Geological Survey 

 of New York (1840). 



8. Dawson (Sir J. W.), " On a Terrestrial MoUusk . . . from the Coal 



formation of Nova Scotia": Quart. Journ. Geol. Soc, vol. xvi (1859), 

 pp. 268-277, figs. 



9. " Notice of the discovery of additional remains of Land Animals in the 



Coal-measures of the South Joggins, Nova Scotia " : op. cit., vol. xviii (1862), 

 pp. 5-7. 



10. " On the discovery of new Pulmonate Mollusk {Zonites \_Conidns\ 



prisons, Cpr.) in the Coal-formation of Nova Scotia " : op. cit., vol. xxiii 

 (1867), pp. 330-333, figs. 



11. " Eevision of the Land Shells of the Palaeozoic era, with descriptions 



of New Species " : Amer. Journ. Sci., ser. iii, vol. xx (1880), pp. 403-415, figs. 



12. " Synopsis of the Air-breathing Animals of the Palajozoic in Canada up 



to 1894 " : Trans. Eoy. Soc. Canada, vol. xii (1895), sect, iv, pp. 71-88. 



13. Etheridge (E.), jun., " On the occurrence of the genus Turrilepas, H. Woodw., 



and Annelid Jaws in the Upper Silurian (PWenlock) Eocks of New South 

 Wales" : Geol. Mag., 1890, pp. 337-340, 1 pi. 



14. Fischer (P.) : " Manuel de Conchyliologie " (1880-1887). 



15. ' ' Description d'une nouvelle espece de Bendropvpa, du terrain Perniien 



de Sauue-et-Loire " : Jouiu. de Conchyl., torn, xxxiii (1885), pp. 99-105, tig. 



