178 llBPOKX — 1888. 



4. Cebatiocaris (?), sp. Fig. 10, of the Woodcuts. 



A posterior portion of a valve like that of Ceratiocaris was described at 

 p. 220 of the First Report (1883). It is j^^ X ^ inch in measurement ; from 

 Wern, near Portmadoc ; and marked y-j^ in the Woodwardian Museum, 

 Cambridge. 



The body-pieces known as Salter's Ceratiocaris (?) lata, from Garth, 

 and C. (?) insperata, from Penmorfa (see our First Report, p. 221, and 

 Third Report, 1885, p. 351), appear to be too large for this species from 

 Wern. 



5. Htmenocakis. (Woodcuts, Figs. 2- 5.) 



In illustration of Hymenocaris vermicaucla, Salter, outline sketches 

 of some of the best known specimens are given in figs. 2-5 of the 

 accompanying woodcuts. The modified shapes of the valves, and of 

 the body-rings variable in number, are here indicated to illustrate the 

 descriptions in the First Report, pp. 218, 219 ; and to serve for comparison 

 with their associates Saccocaris, Lingulocaris, and Ceratiocaris (?), above 

 described (figs. 1, 6-10). 



Explanation of the Figures (^Woodcuts'). Natural size. 



Fig. 1. Saccocaris major, Salter. Caer-y-coed, near Maentwrog ; upper part of the Lower 



Lingula-flags. 

 Fig. "2. Jfi/nienncaris vermicauda. Salter. Carapace much narrowed by transverse pressure. 

 Borth, Portmadoc ; Ffestiniog group. 



Fig. .3. Carapace and abdomen modified by pressure. Borth. 



Fig. 4. Carapace and abdomen the former somewhat shortened and widened by 



pressure, but nearly of the original shape. Borth. 



Fig. u. Carapace and abdomen modified by pressure. Borth. 



£ 2^^ I —Fig. G. Lingnhcaris Salteriana, sp. nov. Flattened carapace; damaged at the ends. 

 Tuliwntirbwlch quarry, Portmadoc. 



,v,^. Fig. 7. (?). Smaller individual. Carapace flattened, and somewhat narrowed 



■' 3 and lengthened by transverse pressure. Caer-y-coed, near Maentwrog ; Lower 



Lingula-flags. 



J ISO-, _ Yiu. 8. siliguifnrviis, J. &W. Garth Hill, Tremadoc ; Upper Tremadoc series. 



, , Fig. 9. Bwlch-y-gaseg, near Cynwyd, Corwen ; Bala-schist. 



""* Fig. 10. Ceratiocaris (?), si[>. Hinder moiety of valve. Portmadoc; Ffestiniog group. 



§ IX. Estheria. — Some specimens of Estheria memhranacea (Pacht), 

 in a black limestone, including the long variety (p. 16 : ' Monogr. Foss. 

 BstheriEe,' 1863), collected lately by Mr. Jex, in Orkney, have been placed 

 in the British Museum. 



§ X. Devonian Phyllocarids of Neiv-York State, Sfc. — The following 

 genera and species are fully noticed and carefully figured in Prof. Dr. James 

 Hall's last volume of the ' Palaeontology of the State of New York,' just 

 lately published. They are of Devonian age, and with few exceptions 

 from the district mentioned. The title of this important volume is 

 'Geological Survey of the State of New York. Palaeontology: Vol. VII. 

 Text and plates. Containing descriptions of the Trilobites and other 

 Crustacea of the Oriskany, Upper Helderberg, Hamilton, Portage, 

 Chemung, and Catskill Groups. By James Hall, State Geologist and 

 Palaeontolosrist. Assisted by John M. Clarke.' 4to, Ixiv. and 236 pages, 

 45 plates. Albany, N.Y., 1888. Together with a ' Supplement to Vol. V., 

 Part 2, of the Palaeontology of New- York State. Pteropoda, Cephalopoda, 

 and Annelida,' 42 pages, and plates 114 to 129. 



