64 BRITISH PALAEOZOIC PHYLLOCARIDA. 



31. Ceeatiocaris (?) inspeeata, Salter, 1866. 



1866. Cbhatiocaeis ? inspeeatus, Salter. Mem. Geol. Surv., vol. iii, p. 295, 



woodcut, fig. 6. 



1867. — — — In Siluria, 3rd (4tli) edit., p. 516. 

 1873. — — — Cat. C. S. Foss. Cambridge, p. 16. 

 1877. — — H.Woodward. Catal. Brit. Foss. Crust., p. 71. 

 1885. — INSPEEATA, T. E. J. ^ H. W. Third Eeport, p. 351 ; Geol. 



Mag., 1885, p. 466. 



In the Cambridge Museum (5/343), not well figured in the woodcut referred to, 

 is an obscure remnant of an ultimate abdominal segment, with clear indications of a 

 trifid appendage ; the telson or central spine seems to be the longest, but all three 

 are broken off above their points. The telson is about 85 mm. long. From dark- 

 grey shales between the Lower and Upper-Tremadoc Slates in a railway-cutting 

 above the village of Penmorfa, Portmadoc. Collected by Mr. D. Homfray. Mr. 

 Salter thought that it belonged to the same species as the foregoing. 



32. Ceeatiocaeis (?). 



An obscure hinder moiety (25 X 1 2 mm.) of a carapace possibly referable to 

 Ceratiocaris is in the Mus. Pract. Geol., H. ' Catal. C. S. Foss.,' 1878, p. 72. 

 From the " Upper Llandovery ; Onny River." ' Third Eeport Foss. Pal. Phyll.,' 

 1885, p. 352 ; ' Geol. Mag.,' 1885, p. 466. 



33. Ceeatiocaeis (?) peeoenata, Salter, 1878. 



1878. Ceeatiocaeis PEEOENATrs (Salter MS.), HiuvUij, Newfon, and Etheridge. 



Catal. Camb. Sil. Foss. M. P. G., p. 142. 

 1885. — ? PEEOENATA, T. B. J. & R. W. Third Eeport, p. 352 ; Geol. 



Mag., 1885, p. 466. 



Very little is known of this obscure form. One specimen, M. P. G. x i\-, and 

 two in the Cambridge Museum, are only fragments (one rather more than an inch 

 long, and the others less) of what seem to be cylindrical spines (like those of 

 Echinoderms), about 5 mm. in diameter, two pitted all over (?) and one tuberculate. 

 They are from the Upper Ludlow of Benson Knot, near Kendal, Westmoreland. 



