69 



A VIC. 



Perry Co., Pa., 2 ni. s. w. of New Bloomfield, collecting station 

 No. 116 (116-16, of 000 catalogue), from top of Hamilton SS. 

 base of Ham. Upper shales. — VIII c, 

 Avicida equilatera. Aviculopecten equilaterus. VIII h. 

 Avicula Uabella. See Pterinea flabella. VIII c, 

 Avicula fragilis. See Aviculopecten fragilis. VIII e, 

 Avicula insueta. Rogers, page 821, fig. 617. Illh. Lower 



part of the Loraine (Hud- 

 son river) formation. Em- 

 mons, page — , fig. 110, 5. 

 (Also Amer. Geol. Vol. I, 

 plate 17, fig. 15.) A rare 



£110 



R.617; 



shell in the eastern district of Noav York. 



Avicula Icevis. See Pteronites Isevis. VIII c. 

 Avicula leptonota. Hall, page 76, fig. 18, 5. Va. Clinton 

 ^/«^WIf^ 8/ formation. Found by I. 0. White on the tip of 

 the Bloomsburg Iron Oo.'s mine near Nethart's, 

 Columbia Co., Pa., Hemlock township, Clinton 

 fossil ore bed, G7, p. 232.— F^. 

 Avicula longispina. See Pterinea longispina. VIII g. 

 Avicula muricata. See Pteronites muricatus. VIII h. 

 Avicula orUculata. Lyriopecten orbiculatus. VIII c. 

 Avicula pecteniformis. See Aviculopecten pecteni- 

 formis. VIII g, 



Avicula rhomboidea. See Appendix. 

 Avicula rugosa. Hall, page 142, fig. 58, 2. Vanuxem, page 

 Vil . 112, fig. 23, 2. (Conrad, 1841, Annual Keport, 



N. Y.) — Name preoccupied by Munster in 1826 

 (Miller). — Water-lime division of Lower Hel- 

 derberg formation. VI By the combination 

 of Orthis plicata^ Cytheria alia y and Avicula 

 58. "^^^ ^. rogosa the Waterlime is known. 

 Avicula securiformis ? See Appendix. 

 Avicida sig7iata. See Aviculopecten signatus. VIII g. 

 Avicula speciosa. Hall, page 243, fig. 106, 1, la. Portage 

 m'^n ?^ <. formation, F////; i.e. the shales of Cashaqua 

 f ^^ ^^^r^ creek in western New York, immediately 



overlying the Genesee black shale. In Hunt- 



H.I06. 1. " ^ ingdon Co., Pa., these pretty little shells fill 

 the Genesee black shale at the big bend of the KR. 125 rods 



