Beyr. 92 



— Also BeyficUas (?) spec. 210-14, and 210-21 (casts of Bey- 

 richia ? too poor for representation); 210-141 (twelve speci- 

 mens), irom Fellows' coll. 1876, at Bellefonte, in Trenton lime- 

 stone^ II G, 



Beyrichia ? in Medina red or lower division, Bedford 



borough. Pa. T2, p. 89. (Stevenson says it is of the character 

 of the Beyrichia of the Tentaculite limestone.) — IV i. 



Beyrichia ? 00, specimens 508-5 (five specimens) 



and 508-24 (very poor), from Orbisonia, Clinton shale., V a. 



Beyrichia ? in Millerstown Clinton fossil ore bed. Perry 



Co., Pa. Olaypole's spec. 161-1 (1). — V a. 



Beyrichia ? indistinct, in the Bossardville limestone of 



Monroe and Pike Cos., Pa. G6, p. 219.— VI 



Beyrichia ? A minute species in the Bastard lime- 

 stone of Mensch's quarry, Montour township, Columbia Co., 

 Pa. G7, p. 98, 248; also in bottom beds of the Low Bros, 

 quarry, p. 260. Beyrichias appear throughout the Lower 

 Helderherg formation, in that region; in Mauser's quarry, bed 

 22, Hemlock town. Columbia Co. G7, p. 226, 244.— The same 

 minute species in the Bossardville limestone^ Russell quarry, 

 p. 314.— F/. 



Beyrichia ? in blue flaggy Lower Helderherg limestone, 



at Bedford Springs. T2, p. 148.— YI 



Beyrichia ? in Hamilton upper shales, at Barnett's Mill, 



Perry Co., Pa. OOO, 1888, Claypole's Cat., specimens 5-48 

 (2).— VIII G. 



Beyrichia ? in Chemung Catskill passage beds, Sher- 



mansdale Mill, Perry Co., Pa. Claypole's spec. S-64 (1). — 

 VIII.Q-IX. 



Beyrichia ? See figures natiiral size and in group, under 



Leperditia okeni. XI 



Billingsia saratogensis. Walcolt. Potsdam fauna ot 

 1/ C /^ t o ^^^^'^^^^^ county, N. Y., 1888, pi. — , fig. 9. — (See 

 V^^^'^'Bull. 30, U. S. G. S. pp. 61, 62. It is a gastero- 

 pod found, as yet, only in the Upper Cambrian 

 formation in Saratoga county, N. Y. To be looked 

 for in Penna. along the north slope of the South 

 W 1 vooo M<^^^tains and along the North and South Chester 

 Wo/C.»8o. Valley hill ranges.— ?/; C 



