ON THE FOSSIL PlIYLLOPODA OF THE PALJiOZOIC ROCKS. 469 



One or more specimens of this Australian species had been seen by 

 Mr. J. W. Salter, and referred by him to Garyocaris with some doubt. 

 We have adopted Mr. Salter's conclusion, both in a former report (for 

 1883) and in the ' Monogr. Brit. Pateoz. Phyll.,' Pal. Soc, 1892, p. 93. 

 Comparing Mr. Etheridge's figures with those given of Garyocaris by 

 ourselves (op. cit., pi. 14, figs. 11-15), we find that one of ours is as 

 large as any of the former, and that the modified shape of the ends of 

 the valves does not necessarily remove them from Garyocaris. 



VII. With respect to Aptychopsis coi-di/ormis, sp. nov., and PeUocaris 

 anatina, Salter, mentioned at page 299 of the report for 1892, Mr. J. E. 

 Marr informs us that the words ' Coll. Marr ' should not have been 

 attached to the former in our ' Monogr. Pal. Phyll.,' pai-t 2, 1892, p. 103, 

 pi. 15, fig. 2, for it was collected long ago, being the only Palieozoic 

 shield-shaped Phyllopod in the Cambridge Museum when Salter labelled 

 it Peltocaris anatina, overlooking its real generic character, and perhaps 

 regarding it as a distorted specimen. By this name the specimen has 

 been referred to in lists of fossils as from the ' Wenlock,' and the real 

 Feltocaris, which we have named P. anatina (' Monogr. Pal. PhvU.,' 

 p. 114, pi. 16, figs. 4-9), is a ' Llandovery ' fossil. It seems to be ex- 

 pedient to give the old name anatina; instead of cordiformis, to the 

 Aptychopsis (p. 103), as intimated by Mr. Marr in the ' Geol. Mag.' for 

 December, 1892, p. 536 ; and to distinguish the Feltocaris (p. 114), 

 some specimens of which were collected by Mr. Marr, as P. Marrii. 



VIII. We here append a table showing the Geological Distribution 

 of the several Peltate Phyllopods described and figured in our Mono- 

 graph and referred to at page 298 of the report for 1892. 



Aptychopsis prima, Barrande "1 



„ „ var. longa, J. and W. >Etage Eel, Bohemia. 



,, „ var. secunda, J. and W. J 



„ Barrandeana, J. and W. Birkhill group (upper part of 



the Moffat series). 

 „ „ var. brevier, J. and W. Birkhill group ? 



„ anatina (Salter). Lower Wenlock, Ulverston. 



„ lata, J. and W. Gala series. 



,, glabra, H. Woodward. Gala series. 



„ Wilsoni, H. Woodward. Riccarton series. 



{Gala series. 

 Birkhill group. 

 Skelgill Shales, Lake district. 

 „ ovata, J. and W. Gala series. 



„ Salteri, H. Woodward. Wenlock Shale, South Wales. 



,, subquadrata, J. and W. Upper Silurian, Ireland. 



{Upper Silurian, Ireland. 

 Brathay Flags (?), Lake district. 

 Birkhill group ? 

 r Riccarton series. 

 „ oblata, J. and W. < Gala series. 



[_ Birkhill group. 



Peltocaris aptychoides, Salter ( §^' V.^™*"- 



^ '' ' [ Birkhill group. 



Marrii J and W / Si^^^i^l S^'O"?- 

 Marrii, J . and W . | gteig-jj gi^^les. 



