136 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 52' 



51377. PTILODICTYA HILLI (James). Plesiotypes. 

 Lorraine (Ordovician), Danville, Kentucky. 



Kentucky Fossil Shells, 1889, p. 30, pi. xxxv, figs, i, 2, 4, 5. 

 = Escharopora hilli. 



51375. RHYNCHONELLA INCREBESCENS Hall. Plesiotype. 

 Trenton (Ordovician), Frankfort, Kentucky. 



Kentucky Fossil Shells, 1889. p. 83, pi. xxxiv, figs. 26-29. 

 = Rhyiichotrcijia inccquivalve. 



51186. ORTHIS LINNEYI James. Plesiotypes. 



Trenton (Ordovician), Danville, Kentucky. 



Kentucky Fossil Shells, 1889, p. 41, pi. xxxiv, figs. 7-13. 

 = Orthorhynchtila linneyi. 



51189. ORTHIS BOREALIS Billings. Plesiotypes. 



Trenton (Ordovician), Frankfort, Kentucky. 



Kentucky Fossil Shells, 1S89, p. ;i6, pi. xxxiv, figs. 14-20. 

 = Hehcrtella horcalis. 



Silurian Types 



Unless otherwise noted, all the species listed under this headings 

 are from the Louisville limestone division of the Niagaran at Louis- 

 ville, Kentucky. 



Brachiopoda 



51336. ANASTROPHIA INTERNASCENS Hall. Plesiotypes. 

 Kentucky Fossil Shells, 1889, p. 47, pi. xxxii, figs. 17-20. 



51331. ATRYPA CALVINI Nettelroth. Holotvpe. 



Kentucky Fossil Shells, 1889, p. 89, pi. xxxii, figs. 64-66. 



= A try pa ritgosa. 



51314. ATRYPA RETICULARIS NIAGARENSIS Nettelroth. Cotypes. 



Kentucky Fossil Sliclls, 1S89, p. 92, pi. xxxii, ligs. 5-8, 44-47. 



51340. CAMARELLA CONGESTA (Hall). Plesiotype. 



Kentucky Fossil Shells, 1889, p. 4S. 



51326. CYRTIA EXPORRECTA (Wahlenberg). Plesiotype. 



Kentucky Fossil Shells, 1889, p. 93, pi. xxvii, fig. 20. 



51327. CYRTIA EXPORRECTA ARRECTA Hall and Whitfield. Ple- 



siotypes. 



Kentucky Fossil Shells, 1889, p. 94, pi. xxvii, fig. 21 ; pi. xxxiv^ 



fig- 35- 

 = Cyrtia myrtia. 



51322. LEPTOCOELIA HEMISPHERICA (Hall). Plesiotypes. 



Kentucky Fossil Sliells, 1889, p. 152, pi. xxxii, figs. 21-23, 36-39. 

 = Anoplotheca heniispherica. 



