On some Fossil Myriajpods froiii Forfarshire. 181 



of the recent Chilognaths; each joint is funnel or club-shaped, 

 being much the thickest near its distal articulation. The 

 basal joint is short and almost cylindrical, the second joint 

 much larger than either it or the succeeding one. Another 

 specimen (PL II.,figs. Itandlc) exhibitsa doubtful fourth joint, 

 but it is most probable that even in this case some joints are 

 still amissing. The test, which is horny in character and 

 still retains its brown colour, is minutely pitted or punctated 

 all over. On the dorsal scutes it is granular, and in places 

 is raised into papillae, which probably supported small hair- 

 like spines, some of which are found pressed into the test or 

 flattened against it, and where the animal has been fossilised 

 as a cast small holes are observable passing from it into the 

 matrix. The somites have been held together by flexible 

 and wrinkled skin, which is preserved in some specimens 

 (PL XL, fig. 1&), and the whole animal must have enjoyed an 

 exceeding flexibility. In a specimen preserved in the round 

 (PL II., fig. le) the body looks like a string of larger and 

 smaller beads. There is no evidence that it rolled itself up 

 in the manner of the recent lulus, the probabilities being 

 against such a supposition, for the legs are so much longer 

 than the width of the body that rolling up would afford them 

 but little protection. 



Fragments of ten different individuals referable to the 

 above genus and species have been studied for the above 

 description, and though in three specimens the head has 

 been distinctly seen, in no case has the posterior extremity 

 of any individual been observed. In several cases from 

 sixteen to twenty segments have been found adhering to- 

 gether, and this circumstance would tend towards the sup- 

 position that the segments of this species and genus were 

 fewer in number than those of the succeeding genus. 



Eelative Dimensions of Tavo of the Best Peeserved 

 Individuals of the Kampecaeis Forfaeensis. 



No. I. 



Specimen from wliicli fig. 1 is taken, which is fossilised, hack upwards. 



Length of head, 2 mm. 



Greatest hreadth of head, 275 mm. 



