158 S. H. SCUDDER ON SPINED MYRIAPODS 



divided into an anterior and posterior portion, the former apparently elevated, spiniferous, 

 occupying from two-thirds to three-fourths of the entire segment, which as a whole is 

 scarcely twice as broad as long. The four rows of spines are represented as if at about 

 equal distances apart, those of the subdorsal row indicated only by their bases ; those of 

 the lateral row appear from the figures given to be almost a mere lateral expansion of the 

 edge of the dorsal plate, apparently depressed, forming a laminate compound spine, con- 

 sisting of a main flange, two-thirds as long as the width of the segment, broad at base and 

 bearing there a triangular, anterior, pointed spinule of considerable size, beyond narrow- 

 ing and tapering and at the same time curving a little backward to a sharp point, bearing 

 however midway a triangular pointed spinule, very broad at base and nearly as conspicu- 

 ous as the main spine itself; so that it might be said to be apically forked as in the pre- 

 ceding genus. Salter says that these lateral spines " have at their base, front and back, 

 two other smaller spines," but only an anterior one is figured. " The length of the frag- 

 ment, including five rings" — the sixth is detached — "is 1J inch; and the breadth of 

 the axis, without the long forked spines is f ths inch. The forked spines are f ths of an 

 inch each." 



Locality : North Straffordshire, in ironstone. 



This specimen was considered by Salter as " the central lobe of the abdomen of a trilo- 

 bate Eurypterus or allied genus," and like Westwood in speaking of the last species, he says 

 " it would strike an entomologist as a fossil caterpillar of the Saturnia genus, so strong is 

 its resemblance in size, form and ornament to the larvae of that group." It differs from 

 the other species of Euphoberia in its size, its remarkably depressed spines with very 

 large spinules both at base and in the middle, and appears in these two points to approach 

 Acantherpestes, on which account we have placed it nearest them in this list ; its subdorsal 

 spines could hardly have been of the same character as these lateral spines in every 

 respect ; and if they did not, this would prove an additional distinction from the other 

 species. 



Euphoberia horrida, nov. sp. 

 PI. 13, figs. 11, 12, 14. 



Messrs. Armstrong and Carr have each sent me a specimen and reverse of an unusually 

 large species of Euphoberia, with highly developed spines, to which the above name may 

 be given. Mr. Carr's specimen (fig. 11), is the better preserved and the more perfect. It 

 apparently represents nearly the entire animal lying partly upon its side, so as to throw the 

 legs upon one side and the subdorsal spines upon the other, but exposing part of the dor- 

 sal surface also ; toward the hinder extremity the legs appear on both sides ; the body lies in 

 a rather strongly sinuous curve, the two extremities broken off, each probably close to the 

 tip, at the edge of the nodule. As it lies it is 107 mm. and if extended would be 119 

 mm. long, so that its totaj length must have been at least 130 mm ; its width anteriorly 

 is 8 mm. ; at the greatest 4.5 mm ; at the posterior extremity 10 mm. 



About twenty-eight segments are preserved, and there may not have been more than 

 three or four and probably were not over five or six more. The first five or six segments 

 preserved are of equal size, then the body enlarges a little for six or seven more, then 

 diminishes again, and continues to do so with considerable regularity to the hinder 



