747 



Prod. 



Productella boydii. Productus hoydii^ Hall. 10th Re- 



gents' Rt. 1857, Chemung, — In Pennsylvania, Warren Co., col- 

 lected by Randall, in Tioga Co. by Sherwood; both from Upper 

 Chemung strata ; in Crawford Co. by I. C. White, from under 

 Cussewago sandstone^ where it abounds (Q4, p. 97) ; in the 

 First Oil Sand (p. 102, 198) ; scattered through Uiq shales 

 under the Second Oil Sand^ both in Erie and Crawford Cos. 

 (p. 104) ; becomes abundant at 325' of White's Chemung sec- 

 tion of Erie Co. ascending from the non-fossiiiferous lower sub- 

 division (p. 118); in Cussewago sandstone at the Meadville 

 iron bridge, vnth other Chemung shells (p. 165) ; fills the flag- 

 stones in the bed of Mill run at the Meadville oil well. A 

 fine specimen from here was got by Carll (p. 171). Hundreds 

 in the blue shale under the Cussewago sandstone at canal 

 feeder dam in Hayfield, Crawford Co. — Sherwood's Tioga 

 county collections contain spec. 855-11 (doubtfully identified; 

 has a very distinct sinus; not figured in Pal. N. Y. ; G. B. S.) 

 855-12, (ditto; convex; nodes few, elongated, sharp) 855-14 a 

 (ditto ; very convex, stronger sinus than any figured specimens), 

 855-20 (ditto), 855-31 (ditto), 855-36 a (distinctly eared, with 

 ridge along middle of cast), 855-37 (ditto; convex; deep sinus; 

 pustules becoming lengthened at the front), 855-38 (identified 

 by J. Hall, Nov., 1888), 855-42 (ditto), all from Sullivan 

 township ; 855-51 (ditto, with Strept. chemungensis) ; 850-30, 

 from Mixtown; 860-49, 63,-64 a (all three doubtful), 860-72 l 

 (ident. J. Hall), 860-73, near Mansfield; 8^1-2 (J. H.), 861-7 

 (J. H.), 861-16 one specimen with very long spines^ nearly an 

 inch long), 861-23 (two large specimens), «61-26 (?), 861-29 

 (?, with long spines), all in Sullivan township ; and all Sher- 

 wood's specimens from Chemung upp^r leds, — 872-46 a 

 (?, nodes arranged in concentric lines, the only specimen in 

 the collections with that arrangement) came from Nicholls, 



