EXTINCT SPECIES. 121 



16. PAL2EOTBINGA LITTOBALIS MARSH. 



17. PAL-330TBINGA VETUS MARSH. 



18. PAL-2EOTBINGA VAGANS MARSU. 



19. SULA LOXOSTYLA COPE. 



20. GBACULUS IDAHENSIS MARSH. 



21. GBACTJLAVUS VELOX MARSH. 



22. GBACULAVUS PUMILUS MARSH. 



23. GBACULAVUS ANCEPS MARSH. 

 23bis.* GBACULAVUS AGILIS MARSH. 



24. ICHTHYOBNIS DISPAB MARSH. 

 24bis.f APATOBNIS CELEB MARSH. 



25. PUFFINUS CONBADI MARSH. 



26. CATABBACTES ANTIQUUS MARSH. 



27. CATABBACTES AFPINIS MARSH. 



28. HESPEBOBNIS BEGALIS MARSH. 



29. LAOBNIS EDVABDSIANUS MARSH. 



*Not in the Key. (Marsh, Am. Jour., Sci. and Arts, v, p. 230, March, 1873.) 



|Not in the Key. This species, with No. 24, represents a new order, Ichthyor- 

 nithea, of a new subclass, Odontornithes. (Marsh, Am. Jour., Sci. and Arts, v, 

 p. 161, Feb., 1873.) 



