NO. 1985. NEW SPECIES OF SILURIAN FOSSILS— WILLIAMS. 351 



Actinopteria fomicata Williams. 



Figs. 14, 15, 16.— Three views of the same specimen. 



Locality: Shales of the Pembroke formation on northwestern shore of Young's Cove, 



Pembroke township (loc. No. 5.1.4 B). 



Cat. No. 58965. 



Actinopteria bella Williams. 



Fig. 17.— A natural mold of the exterior of a left valve showing the concentriclines 

 over whole surface, and the radiating lines confined to the body of the shell. 



Locality: Leighton Cove (loc. No. 5.3. SM^). 



Cat. No. 58964. 



Fig. 19.— Mold of the interior of a right valve, showing concentric lines over whole 

 surface but no radii. 



Locality: Same as figure 17. 



Cat. No. 58964. . , , 



Lingula scobina Williams. 



Fig. 18.— A specimen, enlarged 3 diameters, to show the peculiar surface sculpture 



and the radiating lines near the front on inner layer of the shell. 



Locality: Leighton Cove, Pembroke (loc. No. 5.3.8M3), 



Cat. No. 58967. . . 



Actinopteria dispar Williams. 



Fig. 20.— Mold of the interior of a left valve, ordinary size. 



Locality: Leighton Cove, Pembroke (loc. No. 5.3.8M2). 



Cat. No. 58966. 



Fig. 21.— A small left valve, enlarged 2 diameters. 



Locality : Same as figure 20. 



Cat. No. 58966. 



Plate 31. 



New species from the Pembroke formation of Washington County, Maine. 



Specimen 5, enlarged 3 diameters. 

 Specimens 6, 15, 16, 18, enlarged 2 diameters. 

 Specimens 1, 2, 3, 4, enlarged 1^ diameters. 

 Specimens 7, 8, 9, 10, 11, 12, 13, 14, slightly enlarged. 

 Specimen 17, natural size. 



Grammysia pembrohensis Williams. 



Fig. 2. — A right valve, slightly more elongate transversely, and the front of the 

 shell more sharply angular than ordinary. 



Formation and locality: Hersey red shale member of tKe Pembroke formation on 



west shore northernmost cove of Sipps Bay (loc. No. 2.32.9 A). 



Cat. No. 58968. . . 



Grammysia of. pembrokenMS Williams. 



Figs. 1 and 3. — Specimens showing considerable difference in form from the type 



which is believed to be due to distortion after fossilization. 



Locality: Same as figure 2. 



Cat. No. 58969. , „ , x 



Grammysia triangulata (Salter). 



Fig. 17. — Specimen of a left valve presenting very closely the form of one of Salter's 

 type figures. 



Formation and locality: Tough gray sandstone of the Pembroke formation near base 

 at head of Long Cove, Pembroke Township (loc. No. 5.2.9A), 



Cat. No. 58970. 



