NicKLES AND BASSLER.] CATALOGUE OF GENERA AND SPECIES. 215 



COSCINELLA Hall and Simpson. Gcnot3^pe: Coscinella elegantula 



Hall and Simpson. 

 1887. CoscinoUa. Hall and Simpson, Pal. New York, VI, p. xix. 

 1889. Cosoinella. INIiller, North American Geol. Pal., p. 298. 



1897. Coscinella. Simpson, Fourteenth Ann. Rep. State Geologist New York 



for the year 1894, p. 53-4. 

 Obs. Ulrich unites this genus with Intrapora. It seems better to hold it 

 for forms agreeing with Intrapora in zorecial structure, but differing in 

 the mode of growth by forming a regular network of anastomosing 

 branches with rounded fenestrules. 



Coscinella cosciniformis (Nicholson). 



1875. Ptilodicty a cosciniformis. Nicholson, Geol. Mag., new ser., II, p. 35, pi. 



ii, 2-26. 

 1875. Ptilodictya cosciniformis. Nicholson, Pal. Province Ontario, p. 80, pi. ii, 



2a, 2b. 

 1887. Coscinium cosciniforme. Hall and Simpson, Pal. New York, VI, p. 2.39. 

 Hamilton: Arkona, Ontario. 



1889. Coscinella cosciniformis. Miller, North American Geol. Pal., p. 298. 



1890. Intrapora cosciniformis. Ulrich, Geol. Surv. Illinois, VIII, p. 532, ]>!. 



xliii, 6, 6ff. 



1898. Intrapora cosciniformis. Whiteaves, Contr. Canad. Pal., I, p. 37G. 



Coscinella elegantula Hall and Simpson. 



1887. Coscinella elegantula. Hall and Simpson, Pal. New York, VI, p. 239, 

 pi. Ixiv, 9-12. 



1897. Coscinella elegantula. Simpson, Fourteenth Ann. Rep. State Geologist 



New York for the year 1894, pi. xiv, 7-12. 



1898. Intrapora elegantula. Whiteaves, Contr. Canad. Pal., I, p. 376. 

 Hamilton: Widder, Ontario. 



COSCINIUM Ke3^serling. Genotype: Coscinium c3'clops KeyseHing-. 



1846. Coscinium. Keyserling, Reise in das Petschora Land, p. 191. 



1858. Coscinium. Prout, Trans. St. Louis Acad. Sci., I, p. 266. 

 1860. Coscinium. Eichwald, Lethtea Rossica, I, p. 397. 



1884. Coscinium. Ulrich, Jour. Cincinnati Soc. Nat. Hist., VII, p. 38. 

 1887. Coscinium. Hall and Simpson, Pal. New York, VI, p. xix. 



1889. Coscinium. Miller, North American Geol. Pal., p. 298. 



1890. Coscinium. Ulrich, Geol. Surv. Illinois, VIII, pp. 385, 496. 



1897. Coscinium. Simpson, Fourteenth Ann. Rep. State Geologist New York 



• for the year 1894, p. 537. 

 1887. Coscinotrypa. Hall and Simpson, Pal. New York, VI, p. xix. 



1889. Coscinotrypa. Miller, North American Geol. Pal., p. 298. 



1897. Coscinotrypa. Simpson, Fourteenth Ann. Rep. State Geologist New York 

 for the year 1894, p. 537. 



Coscinium asterias Prout. See Fistulipora asteria (Prout). 

 Coscinium cosciniforme Hall and Simpson. See Coscinella coscinifor 

 mis (Nicholson). 



Coscinium cribriforme Prout. 



1859. Coscinium cribriformis. Prout, Trans. St. Louis Acad Sci., I, p. 269, pi. 



xvi, 1, la. 



1890. Coscinium cribriforme. L'lrich, Geol. Surv. Illinois, VIII, p. 496, pi. xliii, 8. 

 1897. Coscinotrypa cribriformis. Simpson, Fourteenth Ann. Rep. State Geolo- 

 gist New York for the year 1894, pi. xiii, 1-7. 



