scuDDER.] CANADIAN FOSSIL INSECTS. 59 



MYRIAPODA. 



Family Euphoberid^. 



Amynilyspes ? sp. 



PI. IV., figs. 1, 2. 



A couple of fragments, one of them with its reverse and both drawn 

 upon the plate, are remains of a larger myriapod than any of the others 

 found in the sigillarian stumps with the sole exception of Xylobius similis 

 with the largest specimens of which its size agrees. But that it cannot 

 be a Xylobius the entire absence of frustral divisions clearly shows. On 

 the other hand, the free termination of the sides of the dorsal scutes and 

 their transverse ridging show a close resemblance to Amynilyspes, and 

 there are besides vague appearances of the bases of spines just where they 

 occur in A. wortheni, though they are too obscure for satisfaction. Little 

 more can be said, as the specimens consist only of a dozen or less adjoining- 

 segments, crushed and more or less distorted, but showing that the segments 

 were about five times as broad as long and the surface rather smooth with 

 sparse and fine granulations scattered over it ; the breadth must have 

 been al)out 6'"'". It is a smaller species than A. wortheni, but presents no 

 characters by which it can be distinguished from it. 



Family Archiulid.e. 

 Archinlus xylobioides Scudder. 



PI. IV., fig. 4. 



There are seven fragments which are referred here, but they show 

 nothing noteworthy in addition to what has been given formerly, for 

 they consist almost entirely of single segments or fragments of the same, 

 one of which is figured, in which the contrasts between the anterior and 

 posterior parts of the segment, here equal, ai"e very clearly seen ; the sur- 

 face is quite smooth. 



Archiulus euplioberioides sp. nov. 



PI. IV., figs. 5, 6. 



The materials for the elucidation of this species are not satisfactory ; 

 no more so thaa in the case of the species of Xylobius descriljed from the 

 same stumps. They c msist of fragments of the scutes only, no append- 

 ages of any kind being visible ; they are crushed and flattened, but 

 enough exist to make sure that they cannot be referred to any of the 

 forms of myriapods previously described from Carboniferous deposits. 



