70 CARBONIFEROUS TRILOBITES 



Locality. — "Waddon-Barton, near Chudleigh, Devonshire. 

 Figs. 8 b, 9, 11, and 12, preserved in Mr. J. E. Lee's cabinet, Villa Syracusa, 

 Torquay. 



Fig. 10 preserved in the British Museum (Natural History). 



31. Phillipsia articulosa, H. Woodiv., sp. nov. PL X, figs. 6 c, d, and 13. 



This species is based upon three pygidia of Trilobites having a larger number 

 of coalesced segments than any of the Culm specimens here noticed. We are 

 unable to refer any cephalothorax as belonging to this form of pygidium, and can 

 only therefore note its occurrence. 



Pygidium one-fourth broader than long, axis one-third the entire breadth, 

 consisting of seventeen coalesced segments which diminish rapidly in breadth to 

 the extremity, which is bluntly rounded, and less than one-third the breadth the 

 axis at the proximal end ; axal furrows deeply marked. Pleurae thirteen in number, 

 terminating abruptly within the margin, which is finely striated ; neither axis nor 

 pleurae have any ornamentation upon them. 



This pygidium agrees most nearly with the preceding species, from which, 

 however, it differs in possessing a greater number of coalesced somites, a character 

 which seems sufficient to justify its separation. 



Formation and locality the same as that of the preceding species. 



These specimens are preserved in the British Museum (Natural History). 



