RY.] 



PROTOZOA. 



157 



belonged to the side of a large, hollow 

 specimen. The semi-elliptical lobes are 

 nearly equal in size, and regularly dis- 

 tributed in rows over the surface. 

 The surface is reticulated with fine 

 papillae, presenting to the naked eye the 

 appearance of a bryozoum. The illus- 

 tration shows rhomboidal depressions 

 instead of papillae. Found associated 

 with Pattersonia and fragments of 

 sponge filaments near the middle of 

 the Hud. Kiv. Gr., about 350 feet above 

 low-water mark at Cincinnati. Col- 

 lector, Charles Faber. 

 wenti, n. sp. This species is founded 

 upon a silicified specimen having the 

 characters above ascribed to the genus, 

 and being well illustrated in the figure. 

 The fibrous substance shown in the 

 sulcus formed the basal attachment, as 

 the parenchymatous surface tissue does 

 not appear at the bottom. The lobes 

 are large, somewhat semi-elliptical in 

 outline, of unequal size, and irregularly 

 disposed, but not pendent as in Patter- 

 sonia. The substance of the filaments and 

 parenchyma, as shown, where broken 

 off and weathered at the top and bot- 

 tom of the specimen, is openly vesicu- 

 lose or irregularly porous, resembling 

 to the naked eye somewhat the appear- 

 ance of Alveolites goldfussi. The spe- 

 cies is named in honor of Mr. C. E. 

 Went, of Frankfort, Ky., who found it 

 in the Trenton Group near that city. 



FIG. 99. Chirospongia faberi ; reticulated depres- 

 sions should indicate papillae. 



CLEODICTYA, Hall, 1884, 35th Eep. N. Y. St. 

 Mus. Nat. Hist., p. 467. [Ety. kleo, 

 closed up ; dictnon, net.] Frond rapidly 

 expanding from the base to a sub- 

 globose or hemispherical form, bearing 

 a row of large, rounded nodes on the 

 periphery ; tube abruptly contracted 

 above, and extending in a cylindrical 

 or slightly expanded form. Substance 

 composed of regular lattice-work of six- 

 rayed spicules and bundles of acicular 

 rods. Type C. gloriosa. 



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



Mus. Nat. Hist., p. 479, Keokuk Gr. 

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



Mus. Nat. Hist,, p. 479, Keokuk, Gr. 

 Cncmidium, Goldfuss, 1826, Petref. Germ., 



E. 15. [Ety. knemidos, armor for the 

 ;gs, a sort of boot.] Type C. lamellosum. 



trentonerisis, see Palseospongia trentonensis. 

 CffiNOSTROMA, Winchell, 1867, Proc. Am. 

 Ass. Ad. Sci., p. 91. [Ety. koinos, 

 shared in common ; stroma, layer.] Dis- 

 tinguished from Stromatopora by the 

 absence of central, simple, radiating 

 tubes, which in this genus is repre- 

 sented by a group of more or less di- 

 vergent ascending tubuli, so that the 

 surface of the last layer presents emi- 

 nences, not with a single large pore at 

 the summit, but with several small 

 pores diverging from their sides. Type 

 C. monticuliferum. 



botryoideum, Spencer, 1884, Bull. No. 1, 

 Mus. Univ. St. Mo., p. 50, Niagara Gr. 



constellatum, Hall, 1852, 

 (Stromatopora constel- 

 lata,) Pal. N. Y., vol. 2, 

 p. 324, Coralline lime- 

 stone, Niagara Gr. 



gal tense, Dawson, 1879, 

 Quar. Jour. Geo. Soc., 

 vol. 35, p. 52, GuelphGr. 



monticuliferum, Winchell, 

 1866, (Stromatopora mon- 

 ticulifera,) Rep. Low. FIG- ioo.-Coen- 

 "Panin M;VI r\ Ql ostroina con- 

 Penm. Mich., p. 91, g te iiatnm t 

 Ham. Gr. horizontal 



pustuliferum, Winchell, section. 

 1866, (Stromatopora pustulifera,) Rep. 

 Low. Penin. Mich., p. 90, Ham. Gr. 



ristigouchense, Spencer, 1884, Bull. No. 

 1, Univ. St. Mo., p. 49, Low. Held. Gr. 



solidulum, Hall & Whitfield, 1873, (Stro- 

 matopora solidula,) 23d Rep. N. Y. St. 

 Mus. Nat, Hist., p. 227, Chemung Gr. 

 CONOPTEUIUM, Winchell, 1865, Proc. Acad. 

 Nat. Sci., p. 110. [Ety. konos, cone; 

 poterion, cup.] Cells crowded, insepa- 

 rable, rapidly enlarging, walls marked 

 by vertical strife, and a few pores com- 

 municate between the cells; epitheca 

 exterior. Type C. effusum. 



effusum, Winchell, 1865, Proc. Acad. Nat. 

 Sci., p. Ill, Waverly Gr. or Lithographic 

 limestone. 

 Coscinoporainfundibuliformis, see Receptacu- 



lites infundibuliformis. 

 Coscinopora sulcata, Owen, 1844, see Recep- 



taculites oweni. 



CBYPTOZOON, Hall, 1884, 36th Rep. N. Y. St. 

 Mus. Nat. Hist., p. 95. [Ety. kruptos, 

 hidden; zoon, animal.] Composed of 

 irregular, concentric laminae, resembling 

 Stromatopora, substance traversed by 

 minute canals, which branch and anas- 

 tomose irregularly. Type C. proliferum. 



minnesotense, Winchell, 1886, 14th Ann. 

 Rep. Geo. Minn., p. 313, Calciferous Gr. 



proliferum, Hall, 1884, 36th Rep. N. Y. 

 St. Mus. Nat. Hist., p. 95, Calciferous 



