362 Annals of the Carnegie Museum. 



Glaphurus primus sp. nov. (Plate 14, figures 7, 8.) 

 Another species of Glapliunis with a much more primitive glabella 

 occurs in the lower Chazy at Vafcour in the (]uarries which yielded 

 the specimens of Cybele tuilcoitrensis. Of this species only the glabella 

 and free cheeks have been found, but they are important, showing, as 

 they do, a primitive condition in the lobation of the Acidaspis glabella. 



Description. 



Cephalon. — Cephalon short, broad, with wide glabella outlined by 

 a narrow but deej) furrow. Glabella moderately convex, having on 

 a general view a central lobe which expands toward the front, and 

 two small side lobes. This appearance is caused by three pairs of 

 glabellar furrows, all of which are short and turn backward. The 

 second pair run back into the third pair, and the third pair join the 

 neck furrow. The surface is spinose but has fewer spines than Gla- 

 pJiuriis pitstiilattts. The fixed cheeks are very convex. Free cheeks 

 convex, the eye small but prominent. There is a convex spinose 

 border which is separated from the cheek by a narrow furrow and at 

 the genal angle is a large spine. The surface of the cheek is pitted 

 all over except just below and a little in front of the eye where there 

 is a group of small spines. 



Thorax and pygidium unknown. 



Locality. — This species has been found in the lower layers of the 

 Chazy at Valcour, New York, and in both the lower and upper layers 

 on Valcour Island. The type specimens are in the writer's collection. 



Order PROP ARIA Beecher. 



Family ENCRINURID.F: Linnarsson. 



Genus CYBELE Loven. 



Cybele valcourensis sp. nov. (Plate 14, figure 9.) 



Of this species, the fourth of the genus to be found in the Ordo- 

 vician of America, we have, so far, only the pygidium, and all the 

 specimens — about a dozen — are from the well-known quarries near 

 the road at Valcour, five miles south of Plattsburgh, New York. 



Description. 

 Cephalon and thorax unknown. 

 Pygidium narrow, tapering almost to a jioint. Axis narrow, but 



