68 Alexander Petninkevitch, 



and believe them to belong to the same species, as far as one 

 may judge from the abdomen alone. But in the systematics of 

 Amblyp\-gi the abdomen is the least important part of the body 

 and may not have even generic value. I therefore regard as type 

 specimen No. 1762 of the Lacoe collection. The description of 

 Scudder is not correct. He describes the palpi as chelate, whereas 

 they are incomplete and consequently show no chela. He also 

 describes the second pair of legs as the first, but the first pair is 



"^^ 



Fig. 29. Fig. 30. Fig. 31. 



Figure 2g.—Graeophomts carbonarius holotype, U. S. N. M. No. 37969, dorsal 

 surface. Figure 30. — Same, ventral surface. Figure -^i.—Graeophonus car- 

 bonarius (Scudder), from the Upper Coal Measures, Joggins Mines, Nova Scotia, 

 specimen No. 37964 of the U. S. National Museum, dorsal surface. X -r 



lost altogether. The following description of the type is made 

 after the specimen has been cleaned from the kaolin which was 

 hiding from view many of its structures. 



Total length 17.0 mm. Cephalothorax reniform, with a slight 

 projection in front of the eye tubercle, 5.66 mm. long in the middle 

 line and 7.0 mm. wide about ^/s from anterior edge. A median crest 

 extends from the middle of the cephalothorax to its posterior edge. 

 Two pairs of oblique, curved crests run from the sides of the cephalo- 

 thorax to the median crest. Eyes round, contiguous, on a round 

 tubercle (depression in the specimen being the mould of the tubercle) 

 close to anterior edge. Abdomen oval, without pygidium. On the 

 dorsal surface may be counted ten tergites, on the ventral eleven 



