392 AMEEICAN FOSSIL BRYOZOA. [bum,. 173. 



Ehinidictya obliqua (Ulrich) Whiteaves. 



1897. Ehinidictya obliqua Ulrich. Whiteaves, Pal. Foss., Ill, p. 240. 

 Trenton: Deer Island, Lake Winnipeg, Canada. 



Obs. Though uiiquestionably distinct, this species requires further work 

 before it can be regarded as valid. 



Ehinidictya parallela (James). 



1878. Ptilodictya parallela. James, Paleontologist, No. 1, p. 5. 

 1882. Ehinidictya parallela. Ulrich, Jour. Cincinnati Soc. Nat. Hist., V, p. 170. 

 1878. Ptilodictya granulosa. James, Paleontologist, No. 1, p. 4. 

 Cincinnati (Utica): Cincinnati, Ohio, and vicinity. 



Obs. Although the description of P. granulosa precedes that of P. paral- 

 lela, the latter name much better defines the usual appearance of the 

 species, and therefore deserves to be the one retained. 



Rhinidictya paupera Ulrich. 



1886. Btictopora paupera (in part). Fourteenth Ann. Eep. Geol. Nat. Hist. Surv. 



Minnesota, p. 69. 

 1893. Ehinidictya paupera. Ulrich, Geol. Minnesota, III, p. 129, pi. v, 19-21. 



Trenton (Black Elver): St. Paul and Cannon Falls, Minnesota; Decorah, 



Iowa. 



Rhinidictya pediculata Ulrich. 



1893. Ehinidictya pediculata. Ulrich, Geol. Minnesota, III, p. 137, pi. \"ii, 1-5. 

 Trenton (Stones Eiver): Minneapolis, Minnesota. 



Ehinidictya trentonensis (Ulrich). 



1882. Dicranopora trentonensis. Ulrich, Jour. Cincinnati Soc. Nat. Hist., V, p. 



167, pi. vi, 15, 15a. 

 1893. Rhinidictya trentonensis. Ulrich, Geol. Minnesota, III, p. 135, pi. vi, 14-18, 



pi. vii, 6-9. 



1886. Stictopora fidelis (in part). Ulrich, Fourteenth Ann. Eep. Geol. Nat. Hist. 



Sur. Minnesota, p. 68. 

 Trenton (Stones Eiver): Lebanon, Tennessee; Minneapolis, Minnesota; 

 Janesville, Wisconsin; Eockton, Illinois. 



EHINOPOEA Hall. Genotype: Rhinopora verrucosa Hall. 



1852. Ehinopora. Hall, Pal. New York, II, p. 48. 



1887. Ehinopora. Foerste, Bull. Sci. Lab. Denison Univ., II, p. 166. 



1889. Ehinopora. Miller, North American Geol. Pal., p. 321. 



1890. Ehinopora. Ulrich, Geol. Surv. Illinois, YIII, p. 388. 



1896. Ehinopora. Ulrich, Zittel's Textb. Pal. ( Engl. ed. ) , p. 280. 



1897. Rhinopora. Simpson, Fourteenth Ann. Eep. State Geologist New York for 



the year 1894, p. 540. 



Rhinopora curvata Ringueberg. See Rhinopora verrucosa Hall, 

 Rhinopora frondosa Hall and Whitfield. See Rhinopora verrucosa 

 Hall. 



Rhinopora prima Whitfield. 



1897. Ehinopora prima. Whitfield, Bull. American Mus. Nat. Hist, IX, p. 177, 

 pi. iv, 5, 6. 

 Calciferous: Fort Cassin, Vermont. 

 Obs. This is probably not a bryozoan. 



Ehinopora ? tuberculosa Hall. 



1852. Ehinopora tuberculosa. Hall, Pal. New York, II, p. 170, pi. xlE, 4a-c. 

 Niagara: Lockport, New York. 



