300 KEPOET — 1892. 



Beries of North-Welsh Phyllocarids, iacluding Hymenocaris and other 

 genera, which will require careful study. 



The chief additions to published information about the Paleeozoic 

 Phyllcpoda are — 



1. Some notes on the Devonian Estheria membranacea, with a figure 

 and description of an oblong variety, showing the concentric riblets and 

 interstitial oruament, in the ' Geological Magazine,' 1890, pi. xii., fig. 9, 

 and 1891, p. 50. ^ 



2. In his Memoii-e snr la Faune du Gres Armoricain (' Annales 

 Soc. Geol. du Nord,' vol. xix., 1891) Dr. C. Barrois, after noting (pp. 

 147 and 149) that the little fossil, quoted by MM. de Tromelin and 

 Lebesconte as Gytheropsis subtestis (' Report Assoc. Fran9. Congres de 

 Nantes,' 1875 [1876], p. 23) is a Primitia, near P. dehilis, Barrande, 

 proceeds to treat of Myocaris lutraria at pp. 220 and 221, pi. v., fig. 4 ; 

 and describes a small caudal spine, probably of a Ceratiocaris, p. 221, 

 pi. v., fig. 3 ; also an abdominal segment and caudal appendages (style 

 and stylets) of a new Ceratiocarid, namely, ' Trigonocarys ' [Trigono cans'] 

 Lebescontei, nov. gen. et sp., pp. 222-226, pi. v., figs. 5 and 6 ; all from 

 Guichen. 



3. Description of Fossils from the Palaeozoic Rocks of Ohio, by 

 R. P. Whitfield (' Annals New- York Acad. Science,' vol. v., December 

 1890) :— 



Page 562. Phtllopoda, p. 563, Echinocaris, Whitfield (' Amer. 

 Journ. Sci.,' 1880). 



At pp. 564-5 seven groups of CeratiocaridcB are defined, according to 

 their segments, &c. 



Page 565. Echinocaris suhlevis, Whitfield, 1880, pi. xii., figs. 12-14. 



Page 567. E. pushdosa, Whitfield, 1880, pi. xii., fig. 13. 



Page 568. E. multinodosa, Whitfield, 1880, pi. xii., fig. 16. 



From the Erie shales of Ohio (= Portage and Chemung groups of 

 New York State). See 'Amer. Journ. Sci.,' 3rd ser., vol. xix., p. 36, &c., 

 1880. 



At p. 572. Aristozoe canadensis, Whitfield, 1880, pi. xii., figs. 17 and 

 18, from the Trenton formation in the Ottawa basin of Canada. Locality 

 unknown. Introduced for comparison. 



See also ' Report Bi-itish Association ' for 1885 [1886], p. 35. 



4. The illustrated description of Discinocaris Jjusliana, by Professor 

 O. Novak, in the ' Geological Magazine,' 1892, p. 148. This is one of 

 three specimens found by Herr Dusl in the strata of the ' Colonie 

 Haidinger,' Bohemia, and referred to by Mr. J. B. Marr, F.R.S., in the 

 * Quart. Journ. Geol. Soc.,' vol. xxxvi., 1880, p. 617. 



5. The fauna of the Lower Cambrian, or Olenellus Zone, by Charles 

 D. Walcott (' Tenth Annual Report of the U.S. Geological Survey,' 

 1891 ?) ; Protocaris Marshi, Walcott, p. 629, pi. Ixxxi., fig. 6 (' Bull. U.S. 

 Geol. Surv.,' No. 30, 1886, p. 148, pi. xv., tig. 1) : — an obscure subquadrate 

 test (?), with a many-segmented body and a furcate caudal appendage 

 (see our Seventh Report for 1889 [1890], p. 64). 



