2*J2 



NEW YORK STATE MUSEUM 



Orth 

 Orth 

 Orth 

 Orth 

 Orth 

 Orth 

 Orth 

 Orth 

 Orth 

 Orth 

 Orth 

 Orth 

 Orth 

 Orth 

 Orth 

 Orth 

 costatum 



s k e o k u k see Derbya keokuk 



s laurentina see Billingsella (?) laurentina 



s lenticularis see Dalmanella elegantula 



s leonensis see Dalmanella leonensis 



s leucosia see Rhipidomella leucosia 



s 1 i m i t a r i s see Liorhynchus limitare 



s 1 i v i a see Rhipidomella livia 



s multistriata see Schizophoria multistriata 



s o b 1 a t a see Rhipidomella oblata 



s p e 1 o r i s see Rhipidomella peloris 



s penelope see Rhipidomella penelope 



s perelegans see Dalmanella perelegans 



s perversa j« Orthothetes perversus 



s praeumbona^ Ambocoelia praeumbona 



s quadrans see Dalmanella quadrans 



s quadricostata see Liorhynchus quadri- 



1658 



Orthis (?) saffordi Hall & Clarke 

 Z££^ type Orthis? saffordi Hall & Clarke. Paleontology 



of New York. 1892. v. 8, pt 1, p. 340, pi. 5 A, fig. 38-40. 

 Hall & Clarke. 14th annual report of the New York 



state geologist. 1895. pi. 4, fig. 10 12. 



Trenton limestone Knoxville, Tenn. 



James M. Safford, donor 

 Orthis semele see Rhipidomella semele 

 Orthis stonensis see Dalmanella stonensis 

 Orthis subumbona see Spirifer subumbonus 

 Orthis thiemei see Rhipidomella sp. 

 Orthis t i o g a ;^ Schizophoria tioga 

 Orthis umbonata see Ambocoelia umbonata 

 Orthis vanuxemi see Rhipidomella vanuxemi 

 Orthisina arctostriata see Orthothetes che- 



mungensis var. arctostriata 



orthothetes Fischer de Waldheim 



Orthothetes becraftensis Clarke 

 1659 £&s.£ type: plastotype Orthothetes becraftensis 

 Clarke. New York state museum memoir 3. 1900. 



P- 5 1 . P l h H- l6 - 



Oriskanian Becraft mountain, Hudson N. Y. 



