H. Woodward — On a New Fossil Myriapod. 103 



Kilmaurs (also collected by the late Mr. Thomas Brown), I pro- 

 pose now to describe and figure it. 



The specimen (figured of the natural size in Plate III., Fig. 6), 

 preserved in the round, is four inches in length, and nearly a quarter 

 of an inch in breadth, is contained in an Ironstone-nodule (like those 

 previously discovered), both sides of which are well preserved. 

 Thirty-six raised body rings, separated by an equal number of in- 

 termediate depressions, can be counted between the head and the 

 last segment, each ring having two pairs of appendages. There are 

 indications of pores, and also of the bases of tubercles or spines, 

 along the dorsal line, but the latter are less perfectly preserved. 



In their great work on the Geological Survey of Illinois, 1868, 

 vol. iii., p. 556, figs, a-d, etc., Messrs. Meek and Worthen have 

 described and figured two new forms of Myriapod under the generic 

 name of Eupliohei-ia, namely, E. armigera, and E. f major. 



The former of these, which equals in size the Kilmaurs specimen, 

 we reproduce in the accompanying Plate III., Fig. 7. 



From Messrs. Meek and Worthen's description of E. armigera we 

 extract the following (p. 557) : — " From all its characters, we can 

 scarcely doubt that it is a Myriapod. One of these more complete 

 specimens seems to be nearly entire, and shows a semicircular head, 

 as wide as any part of the long slender body. It is not in a con- 

 dition to show the eyes, nor are any remains of mandibles, antenna, 

 or other appendages preserved. The entire length of this specimen 

 is 3-90 inches, and its breadth about 0-20 inches. It tapers very 

 little from the anterior to the posterior end, which seems to termi- 

 nate rather abruptly. In the whole length, as many as about 

 seventy-five or seventy-six segments may be counted. But it is 

 worthy of note that there are only half this number on the dorsal 

 side, where each one corresponds to two below. As seen in a side 

 view (the specimens being flattened by pressure), the downward 

 curved ends of the dorsal scutes, or dorsal half of the segments, 

 are apparently more or less rounded, while each of these pieces 

 supports three or four small pointed spines, curved a little back- 

 ward, and arranged so as to form as many rows along the back of 

 the animal. Some of these spines are seen to give off a small, very 

 short, branch, generally on the anterior side. 



" On the under side of the body there are, as already explained, 

 two segments to each of the dorsal scutes, and these segments, of 

 course, are scarcely half the size of those above, though each bears 

 a pair of small slender-jointed legs, about 0-25 inch in length, in the 

 specimen nearly four inches long, of the typical species E. armigera. 

 So far as can be made out, these legs show at least five gradually 

 tapering joints. In some of the specimens, the smaller lower 

 segments show some appearances of openings, like spiracles, 



" These, however, appear to exist in each one of the lower parts of 

 each segment. A still larger and more rounded opening or pit, is 

 also seen just below each of the latter, and may be the point of 

 attachment of the legs. In the specimens represented, it will be 

 observed there are also round pits or perforations in the larger 



