PrqfesHor T. Rupert Jones — Fossil Phyllopoda. 43 



vol. vii, 1888, pp. Iviii and 195-7) are described frora better speci- 

 mens, which show it to be a bivalved (not univalved) form, and as 

 liaving a narrow, median plate, of which there is evidence in 

 jlJesothyra, making a double dorsal suture. There is also a long, 

 narrow, leaf-like rostrum inserted between the valves in front. The 

 relationship of this form with Mesothyra and Tropidocaris is dwelt 

 upon. The author thinks that Dithyrocaris and Emmehzoe have 

 some afifinity with it. Bhinocaris and Mesothyra are regarded as 

 typical members of the family Rhinocaridee. We may mention that 

 l3r. Matthew regards his Ceratiocaris pusilla from the Silurian of 

 New Brunswick (see Trans. Koy. Soc. Canada, vol. vi, 1888, sect. 4, 

 p. 56, pi. iv, fig. 2 ; and our Seventh Report, for 1889, p. 64) as 

 Bhinocaris. 



§ V. 1895. Emmelezoe Lindstroemi. — Since our Twelfth Report, 

 presented to the British Association at Ipswich in 1895, the Swedish 

 Phyllocarids mentioned in that Report as having been found by 

 Dr. Gustav Lindstrom in the Upper Silurian beds at Lau, Gothland, 

 have been duly described and figured in the Geological Magazine, 

 Decade IV, Vol. II, No. 378, December, 1895, pp. 540, 541, PI. XV, 

 Figs. 2a-2d, as Emmelezoe Lindstroemi, J. and W. The fish-remains 

 ( Ci/athaspis) and other fossils associated with it ai'e mentioned in 

 detail by G. Lindstrom in the Bihavg till K. Svensh. Vet.-Akad. 

 EandL, vol. xxi, part 4, No. 3, 1895, pp. 11, 12. 



Mr. J. M. Clarke has suggested at p. 801 of his memoir, mentioned 

 in § IV, that the oculate genus Emmelezoe may have some relation- 

 ship to the group to which Bhinocaris belongs. 



§ VI. 1895. Pinnocaris Lapworthi. — This genus, represented by 

 its only known species, P. Lapworthi, has been carefully examined 

 by Woodward and Jones, and several specimens described, selected 

 from a large number in Mrs. Robert Gray's collection at Edinburgh. 

 I'liis memoir appeared in the Geological Magazine, Decade IV, 

 Vol. II, 1895, pp. 542-5, PL XV, Figs. 5-10. Excepting one 

 specimen from the Upper Silurian of Kendal, Westmoreland, all 

 the known specimens are Irom the Lower Silurian of Girvan, 

 Ayrshire, where Mrs. Gray has made a large collection. 



The peculiar " corded " dorsal margin of the valves may have 

 reference to some longitudinal, narrow, intermediate ligament or 

 plate as in Bhinocaris and Mesothyra. 



§ VII. 1895. A new species of Ceratiocaris (C. reticosa, J. and 

 W.), preserved in the Museum of the Geological Survey, was de- 

 scribed in the Geological Magazine, Decade IV, Vol. II, 1895, 

 j.p. 539, 540, PL XV, Figs, la, lb. It is from the Silurian beds of 

 Ludlow, Shropshire, and is allied to C. cassioides, fi'om that locality'. 

 Traces of a peculiar reticulate sculpture constitute its distinguishing 

 feature. 



§ VIII. 1895. Lingiilocaris. — In the same number (378) of the 

 Geological Magazine, 1895, at pp. 541, 542, a specimen Lingiilo- 

 caris Hngulcecomes, Salter, belonging to the Rev. G. C. H. Pollen, 

 S.J., F.G.S., was figured and described. It came frora Capel Artiiog, 

 North Wales, probably from the Ffestiniog or middle division of the 



