158 



PROTOZOA. 



[C\ \ I'vs. 



Cyathophycus, Walcott, 1879, Trans. Alb. 

 Inst., vol. 10, p. 18. [Ety. kuathoa, cup ; 

 phukos, sea-weed,] Hollow, eyatliiform, 

 with a reticulated structure. Type C. 

 retieulatum. 



reticulatuni, Walcott, 1879, Trans. Alb. 

 Inst,, vol. 10, p. 18, Utica Slate. 



subsphericum, Walcott, 1879, Trans. Alb. 

 Inst , vol. 10, p. 19, Utica Slate. 

 Cyathospongia, Hall, 1882, Fobs. Corals 

 Niagara and Up. Held. Grs., p. 15. [Ety. 

 kualhos, cup; spongia, sponge.] Body 

 solid, turbinate, cyathiform ; structure 

 similar to Astylospongia. Type C. ex- 

 crescens. 



excrescens, Hall, 1882, Fops. Corals Niag- 

 ara and Up. Held. Grs., p. 15, and 35th 

 Rep. N. Y. St. Mus. Nat. Hist., p. 419, 

 Niagara Gr. 

 Cylindrococlia, Ulrich, 1889, Am. Geo., vol. 

 3, p. 245. [Ety. kulindros, cylinder; 

 koilos, belly.] Cylindrical ; central clo- 

 aca; walls thick, radiating canals. Type 

 C. endoceroidea. 



covingtonensis, Ulrich, 1889, Am. Geo., 

 vol. 3, p. 247, Hud. Riv. Gr. 



endoceroidea, Ulrich, 1889, Am. Geo., vol. 

 3, p. 246, Trenton Gr. 



minnesotensis. Ulrich, 1889, Am. Geo., 

 vol. 3, p. 248, Trenton Gr. 



minor, Ulrich, 1889, Am. Geo., vol. 3, p. 

 248, Trenton Gr. 

 Dentalina, D'Orbignv, 1826, Ann. Des. Sci. 

 Nat., t. 7, p. 89. [Ety. dentate, tootb; 

 inus, implying resemblance.] 



priscilla, see Nodosinella prised la. 

 Dictyopmyton, Hall, 1863, 16th Rep. N. Y. 

 St. Mus.. p. 87. [Ely. dictyon, net; 

 phylan, plant.] Turbinate or infundi- 

 buliform, with nodose or conical pro- 

 tuberances or hollow stems externally, 

 and marked by minute rectangular 

 spaces, and consisting of a reticulate 

 envelope. Type D. filitextile. 



abacus, Hall, 1884, 35th Rep. N. Y. St. 

 Mus. Nat. Hist., p. 471. Waverly Gr. 



annulatum. Hall. In;:;, pith Rep. N. Y. 

 St. Mus. Nat. Hist., p. 90, ChemumgGr. 



baculum, Hall, 1884, 85th Hep. N. Y. St. 

 Mus. Nat. Hist., p. 471, Chemung Gr. 



becki, Conrad, 1837, (Lithodictuon becki,) 

 Ann. Rep. N. Y., p. 167, and Pal. N. Y., 

 vol. 2, p. 6, Medina Sandstone. 



catilliforme, see Phragmodictya catilli- 

 formis. 



cinctum. Hall, 1884, 35th Rep. N. Y. St. 

 Mus. Nat. Hist., p. 472, Chemung Gr. 



conradi, Hall, 1863, 16th Rep. N. Y. St. 

 Mus. Nat. Hist., p. 89, Chemung Gr. 



cylindricum, Whitfield, 1881, Bull., No. 

 1, Am. Mus. Nat. Hist., p. 19, KeokukGr. 



fenestratum, Hall, 1863, 16th Rep. N. Y. 

 St. Mus. Nat. Hist., p. 90, Chemung Gr. 



filitextile, Hull, 1863, 16th Rep. N. Y. St. 

 Mus. Nat. Hist., p. 88, Chemung Gr. 



hamiltonense, Hall, 1884, 35th Rep. N. Y. 

 St. Mus. Nat. Hist., p. 468, Ham. Gr. 



irregulare, Hall, 1884, 35th Rep. N. Y. St. 

 Mus. Nat. Hist., p. 470, Chemung Gr. 



neuberryi, see Thamnodictya newberrvi. 

 nodosum, Hall, 1863, 16th Rep. N. ^i 



Mus. Nat. Hist., p. 91, Chemung Gr. 

 parallellum, Hall, 1884, 35th Rep. N. Y. 



St. Mus. Nat. Hist,, p. 471, Chemui 

 patulum, Hall, 1884, 35th Hep. N. I 



Mus. Nat. Hist., p. 469, Chemung Gr. 

 prismaticum, Hj.11, 1884,85th Rep. N Y 



St. Mus. Nat. Hist, p. 469, Chemung, Gr. 

 ramosum, Leequereux. 1884, Coal Flora 



of Pa., p. 827, Up. Chemung Gr. 

 redfieldi. Hall, 1863, 16th Rep. N. V. St. 



Mus. Nat. Hist., p. 88, Waverly Gr. 

 rude, Hall, 1st;:;, 16th R. p. N. Y. St. Mus. 



Nat. Hist., p. 90, Chemung <lr. 

 sacculus, Hall, 1884, 35th Bep. V Y. St. 



Mus. Nat. Hist., p. 473, Waverly Gr. 

 telum, Hall, 1884, 35th Rep. N. Y.St. Mus 



Nat. Hist., p. 470, Chemung Gr. 

 tenue, Hall, 1884, 35th Rep. N. Y. St. Mus. 



Nat. Hist., p. 474, Waverly Gr. 

 tuberosum, Conrad, 1842, (HydnorerM 



tuberosum,) Jour. Acad. Nat. Sci. Phil., 



vol. 8, p. L't;:, Chemung (ir. 

 Dictyostroma, Nicholson, 1875, Ohio Pal . 



TOL 2. p. LT>4. [Ety. 



(itrtyon, net; mow, 



layer.] Allied to 



Stromatopora, but 



the upper surface of 



each lamina Isdevel 



opfed into conical 



points, which sup- 

 port the lamina 



above instead of pil- 

 lars. The lamina' 



have horizontal 



canals, and are prob- 

 ably minutely per- 

 forate. Type D. 



undulatum. 



re.ieuia.un, spencer, S ,!: ( !;;J';; I1 ,/ 1 ;^;; 1 , 



Bull. Mus. 

 I'niv. St. Mo., p. 51, Niagara Gr. 

 undulatum, Nicholson, is7">, Ohio I'al., 

 vol. •_', p. •_'•") I, Niagara ( ><■ 



Kni. 102. 

 Dystactospongia insolens. 



Dystactospongia, S. A. Miller, 1882, Jour. 

 Gin. Soc. Nat. Hist., vol. 5, p. 42. 

 [Ety. dystaktos, hard to arrange ; s/iongia, 



