TYPE SPECIMENS OF PALEOZOIC FOSSILS 293 



Productus dumosus see Productella dumosa 

 Productus (Productella) hallanus see Pro- 

 ductella hallana 



Productus navicella see Productella navicella 

 Productus (Productella) papulata see Pro- 

 ductella papulata 



Productus semireticulatus Martin (sp.) 



1801 sA.i± hypoplastotype Anomites semireticulatus 



Martin. Petrefacta Derbiensia. 1809. p. 7. 



Productus semireticulatus Hall & Clarke. 

 Paleontology of New York. 1892. v. 8, pt 1, pi. 17 A, 

 fig. 18. 



Coal measures Newcastle O. 



Productus speciosus see Productella speciosa 



Productus spinulicosta see Productella spinu- 

 licosta 



Productus truncatus w Strophalosia truncata 



ptychospira Hall & Clarke 



Ptychospira ferita von Buch (sp.) 



1802 saah hypotype Terebratula ferita von Buch. Ueber 



Terebrateln. 1834. p. 76. 



Ptychospira ferita Hall & Clarke. Paleontology 

 of New York. 1894. v. 8, pt 2, p. 113, fig. 102. 



Middle Devonic Eifel, Germany 



Ptychospira longirostris Kayser (sp.) 



1803 9 if 1 hypotype Retzia longirostris Kayser. Zeitsch. 



d. deutsch geolog. Gesellsch. 187 1. 23: 557. 



Ptychospira longirostris Hall & Clarke. 

 Paleontology of New York. 1894. v. 8, pt 2, pi. 50, 

 fig. 12. 



Middle Devonic Eifel, Germany 



pugnax Hall & Clarke 



Pugnax mutatus Hall 



1804 &lf& hypotype Rhynchonella mutata Hall. Transac- 



tions of the Albany institute. 1858. 4:10. 



1'u gn ax mutatus Hall & Clarke. Paleontology 

 of New Yoik. 1894. v. 8, pt 2, pi. 60, fig. 20. 



St Louis group Spergen hill, Ind. 



1805 • aj tf 1Ji hypotype Hall & Clarke. Paleontology of New York 



1894. v, 8, pt 2, pi. 60, fig. 21, 



st Louis group Spergen hill, fad. 



