358 



NEW YORK STATE MUSEUM 



Ambonychia orbicularis Emmons (sp.) 

 22 33 hypotype Pterinea orbicularis Emmons.. 



Geology of New York ; report on the 2d district. 1842. 

 P- 395- 



Ambonychia orbicularis Hall. Paleontology 

 of New York. 1847. v. i, pi. 36, fig. 5a. 



Trenton limestone Watertown N. Y. 



Ambonychia undata see Clionychia undata 

 Avicula aequiradiata see Aviculopecten aequira- 

 diatus 



Avicula b e 1 1 a see Aviculopecten bellus 

 Avicula bellula see Aviculopecten bellulus 

 A v i c u la b o y d i see Aviculopecten boydi 

 Avicula chemungensis see Liopteria chemung- 

 ensis 



Avicula chemungensis see Pterinea chemung- 

 ensis 



Avicula communis see Actinopteria communis 

 Avicula decussata see Actinopteria decussata 

 Avicula e r e c t a see Glyptodesma erectum 

 Avicula flabella see Pterinea flabellum 

 Avicula f r a g i 1 i s see Lunulicardium fragile 

 Avicula gebhardi see Aviculopecten gebhardi 

 Avicula laevis see Liopteria laevis 

 Avicula limaeformis ^ Limoptera ? limaeformis 

 Avicula longispina see Leptodesma longispinum 

 Avicula manticula see Aviculopecten mantic- 

 ulus 



Avicula muricata see Aviculopecten muricatus 

 Avicula n a v i f o r m i s see Pterinea naviformis 

 Avicula o b 1 i q u a t a see Aviculopecten obliquatus 

 Avicula obscura see Pterinopecten ( ?) obscurus 

 Avicula orbiculatus ^ Lyriopecten orbiculatus 

 Avicula pauciradiata 5« Aviculopecten pauci- 

 radiatus 



Avicula s c h o h a r i a e see Aviculopecten schohariae 

 Avicula securiformis see Pterinea halli 

 Avicula securiformis see Pterinea securiformis 

 Avicula s p i n i g e r a see Leptodesma spinigerum 



