544 Pro/. T. R. Jones S^ H. Woodward — Palceozoic Phyllopoda. 



The Sizes of Complete Specimens. 



No. 



The Kendal specimen in the Monograph Brit. Foss. Phyllopoda, 1892, p. 118, 

 pi. XV, fig. 24 : Length, 25 ? mm. ; width, 10 mm. 



The apparent size of the specimens is considerably aflfected by the 

 degree of pressure or amount of distortion they have received. 



EXPLANATION OF PLATE XV. 



1«, right valve ; \b, outline of end view. 



Fig. 1. Ceratiocaris reticosa, STp. no\. From near Ludlow. Museum of Practical 

 Geology, Jermyn Street. 



Fig. 2. Eminelezoe Lindstroemi, sp. nov. 2a, left valve, natural size; 2b, the 

 same, magnified 3 diameters ; 2c, outline of edge view ; 

 2d, outline of end view. From Lau, Gothland. Brit. Mus. 



Fig. 3. Lingulocaris Ungulcecomes, Salter. 3«, hollow cast of I'ight valve, x 1\ 

 diameters ; 3i, outline of transverse section. Capel Arthog, 

 North Wales. Collection of Eev. G. C. H. Pollen, F.G.S. 



Fig. 4. Cypricardinia. 4a, imperfect right valve, twice nat. size; 4b, portion of 

 the ornament, magnified 25 diameters. From Balclatchie, 

 Girvan. Mrs. Gray's Collection, Edinburgh. 



Fig. 5. Plnnocaris Lapivorthi, R. Etheridge, jun. ba, carapace, one and a half 

 times nat. size. The upper part is convex, and exhibits the 

 • outside of the left valve, which is broken across at the umbo, 

 showing a thin layer of brownish matrix between the valves. 

 The inside of the right valve forms the lower part of the 

 figure. The crushed spikes at the side are quite distinct, 

 and must have belonged to some other organism, having no 

 relation to Plnnocaris. They seem to consist of a once 

 convex tapering style, now crushed along its middle, and a 

 much smaller, obscure, thin, and simple spike or spine lying 

 below the other and nearly parallel with it. bb, approximate 

 outline of the convexity of the upper (front) end. From 

 Balclatchie, Girvan, Ayrshire. Mrs. Gray's Collection. 



Fig. 6. Pmnoearis Lapivorthi, R. Etheridge, jun. 6«, convex cast of the interior 

 of a right valve, 3 times nat. size ; Qb, outline of the edge 

 view ; 6c, a small jDortion of the linear ornament of the test 

 preserved at the antero- ventral curve, enlarged 26 diameters. 

 From Ai'dmillan Brae, Girvan. Mrs. Gray's Collection. 



Fig. 7. Plnnocaris Lapivorthi, R. Etheridge, jun. A fiattened carapace : the 

 upper part shows a portion of the outside of the right valve ; 

 the lower part is the slightly hollow inside of the left valve. 

 From Balclatchie, Girvan. Mrs. Gray's Collection. 



