lnl*lu < 



!,. II. ) 



TKll.ul 





>n- II 



-p. 



I.-,IM,I/W WHIM iKi.ii. 18*6. Hull. Am. Mil*. Na' 1. I p. 336, pi. 34, I1|f. I . 



Atopkui ran.ili* \VimriKi.n. IW.t. Hull. Am. V v.il. It. \>. 61, |.N II. I. 1 



Tin- nanio. which has I.een ascribed to Conrad l>y both I'roN. Hall T ami \\ hit- 

 Held,! and also l>y Mr. Millings,)' had no inirticular meaning until VHlitAold danribad 

 undtM- it a nearly <MI tire individual from the Fort i'as>in l>eds on lake Cliainplaiti. 

 To r rod it tl .-s to Conrad is merely a matter f courtesy, as it was used only 



in hi- manuscript and even then aj.pliod to a specifically unidentifiable part of 

 thepypdial douhlure. The relation^ uf that foi I, or of those described l>y Hall under 

 tin- name from the Cha/y lime-tone, to Mr. Whit lield's -pecies are quite uncertain. 

 There are two extended and nearly entire specimens from the lower or Birdseye 

 hori/on of the Trenton ^rotip in Fill more county, Minn., and a single py^idimn 



t'\g.9Itoteluiican<tliMf Lower Tn-nton, Fillmur> 



from an equivalent position at Stanton. Minn., which may l>e provisionally referred 

 to this species; though it is to be confessed that thoir ditl'erences from /. ;;/.//*<> 



Plololoy of s ^ . ..[ i. p 3.pi 4W. .. i: 



rlL 

 PtliMMOtc Foll. T.,| |. p. 164. p. tea. f. MO, IM&; nd !*.. 



x. i. IM. 



