216 The Ottawa Naturalist. 



List ok Genera and Species of Fossils From the Trenton of 



Highgate Springs, Vt. 



ec hi no hi. rm at a. 



2. Crinoidal columns and fragments, too imperfect for identi- 

 fication. 



Bryozqa. 



2. Prasopora Selwyni, Nicholson. This is the most common 

 Trenton massive or hemispheric bryozoary ; usually referred 

 to this species as described by Nicholson in his " P.il. 

 Corals, Monticulipora," and called Favosites lycopoditts by, 

 Vanuxem, and by other authors : Stenopora petro; olitana 

 Pander, or Stenopora lycoperdon, Say. 



3. 4. 5. Seveial branching forms of Monticulip)ridae requiring 

 micro-sections before identification. 



Brachiopoda, 



6. Plectambonites serieea Sowerby. 



7. Dalmanella testudinaria, Dalman. 



6. Orthis tricenaria, Coniad A small variety of this species. 

 9. Dinorthis pectinella, Emmons. 

 to. ' sp., cf. O. Meek ; , Hall. 



11. Strophomenoid shell resembling Stroph imena incurvata, 

 Shepard sp. 



(Streptorhynchus fililextum, Hall. 

 Pteropoda. 



12. Conularia Trentonensis, Hall. A very large and tolerably fine 



example of this characteristic species. 



Gasteropoda. 



23. Bellerophon bilobatus, Sowerby. 



CKl'liAI.Al'ODA. 



14. Orthoceras bilineatum, Hall. 



15. " sp. without annulations but showing longitu linal 



flutings and finer lines parallel to the longer axis of the shell. 



Trjlobita. 



16. Proetus sp. cf. P. parviusculus, Hall. 



17. Calymene senaria, Conrad. 



18. Asaphus megistos, I.ocke, (Isotelus gigas, DeKay). 



19. Trinucleus concentricus, Baton. Numerous examples of ibis 



species which present the same characters as those of the 

 Trenton limestone of Montreal Island, Montmorency 

 balls and other typical localities in the Province ot Quebec. 



20. Harpes Ottawaensis, Billings. A fine example ol this rare but 



beautiful species occurs in the collection. 



