PAT. — REC.] 



PROTOZOA. 



163 



Pattersonia, S. A. Milller, 1882, Jour. 

 Cin. Soc. Nat. Hist., vol. 5, p. 43. 

 [Ety. proper name.] Solid, amorphous, 

 no large openings; lobed, pendent ex- 

 pansions on the upper surtace, and 

 bundles of fine filaments at the base 

 and in the interior, which do not merge 

 into the parenchyma of the sponge; 

 spicules unknown. Type P. difficilis. 



aunta, Beecher, 1889, (Strobilospongia 

 aurita,) Mem. Pea. Mus., vol. 2, p. 28, 

 Trenton Gr. 



difficilis, S. A. Miller, 1882, Jour. Cin. 

 Soc. Nat. Hist., vol. 5, p. 43, Hud. Riv. 

 Gr. 



tuberosa, Beecher, 1889, (Strobilospongia 

 tuberosa,) Mem. Pea. Mus., vol. 2, p. 28, 

 Trenton Gr. 



Fig. 118.— Pattersonia difficilis. Fragment of 

 upper surface. 



Phragmodictya, Hall, 1884, 35th Rep. N. 

 Y. St. Mus. Nat. Hist., p. 466. [Ety. 

 phragmns, a partition ; dictuon, a net.] 

 Cylindrical or cup-shaped fronds, with 

 a concave diaphragm near the broadly 

 expanded base. Substance composed 

 of a reticulate tissue of six and three 

 rayed spicules and long cylindrical 

 rods. Type P. catilliformis. 



catilliformis, Whitfield, 1881, (Dictyophy- 

 ton catilliformis,) Bull. No. 1, Am. Mus. 

 Nat. Hist., p. 18, Keokuk Gr. 



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

 Mus. Nat. Hist., p. 478, Keokuk Gr. 



patelliformis, Hall, 1884, 35th Kep. N. Y. 

 St. Mus. Nat. Hist., p. 478, Keokuk 

 Gr. 

 Physospongia, Hall, 1884, Abstr. 35th Rep. 

 N. Y. St. Mus. Nat. Hist., p. 467. [Ety. 

 physa, bladder ; spongia, sponge.] Frond 

 cylindrical, expanding from the base; 

 surface divided into from 8 to 24 longi- 

 tudinal areas by bands of tubular 

 spicules, and into regular quadrules by 

 concentric bands of spicules; surface 

 bullate ; spicules anchor-shaped. In- 

 terzonate tissue finely reticulated. Type 

 P. dawsoni. 



alternata, Hal), 1884, 35th Rep. N. Y. St. 

 Mus. Nat. Hist., p. 481, Keokuk Gr. 



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

 Mus. Nat. Hist., p. 480, Keokuk Gr. 



dawsoni, Whitfield, 1881, (Uphantaenia 

 dawsoni,) Bull. No. 1, Am. Mus. Nat. 

 Hist., p. 16, Keokuk Gr. 



Protocyathus, Ford, 1878, Am. Jour. Sci. and 

 Arts, 3d ser., vol. 15, p. 124, syn. for 

 Ethmophyllum. 

 Protospongia, Salter, 1864, Quar. Jour. Geo. 

 Soc, vol. 20, p. 238. [Ety. protos, first ; 

 spongia, sponge.] Skeleton loose, retic- 

 ulate formed of cruciform spiculse in 

 one plane. Typ" P. fenestrata. 



fenestrate, Salter, 1864, Qnar. Jour. Geo. 

 Soc, vol. 20, p. 238, and Mon. U. S. 

 Geo. Sur., vol. 8. p. 11, Up. Taconic 



rarus, see Ethmophyllum rarum. 

 Rauffella, Ulrich, 1889, Am. Geol., vol. 3, 

 p. 235. [Ety. proper name.] Hollow 

 cylindrical stems or radially arranged 

 leaves; wall thin, composed of two 

 layers of spicule tissue, inner one por- 

 ous, outer one composed of large spic- 

 ules app' aring as threads interwoven. 

 Type R. filosa. 



filosa, Ulrich, 1889, Am. Geol., vol. 3, p. 

 237, Trenton Gr. 



palmipes, Ulrich, 1889, Am. Geol., vol. 3, 

 p. 238, Trenton Gr. 

 Receptaculitks, DeFrance, 1827, Diet. Sci. 

 Nat., tome 45, p. 5. [Ety. receptaculum, 

 receptacle ; lithos, stone.] Subglobular, 

 discoid, or infundihuliiorm ; composed 

 of cylindrical columns, connected at 

 their upper and lower ends by trans- 

 verse stolons. Typ" R. neptunei. 



arcticus, Etheridge, 1878, Quar. Jour. Geo. 

 Soc, vol. 34, p. 576, Lower Silurian. 



bursiformis, Hall, 1883. Rep. St. Geol., pi. 

 23, fig. 12-14, Schoharie Grit. 



calciferus, Billings, 1865, Pal. Foss., vol. 1, 

 p. 351, Calcif. Gr. 



canadensis, Billings, 1863, (Ischadites can- 

 adensis,) Geo. of Can., p. 309, Anticosti 

 Gr. 



circularis, Emmons, 1856, Am. Geol., p. 

 230, Hud. Riv. Gr. 



dactyloides, see Cerionites dactyloides. 



devonicus, Whitfield, 1882, Ann. N. Y. 

 Acad. Sci., vol. 2, p. 198, Up. Held. 

 Gr. 



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

 Mus. Nat. Hist., p. 68-226, Schoharie 

 Grit. 



elegantulus, Billings, 1865, Pal. Foss., vol. 

 1, p. 360, Calcif. Gr. 



elliplicus, Walcott, 1885, Monog. U. S. 

 Geo. Sur., vol. 8, p. 67, Chazy Gr. 



elongatus, Walcott, 1885, Monog. U. S. 

 Geo. Sur., vol. 8, p. 66, Chazy Gr. 



formosus, Meek & Worthen, 1870, Proc 

 Acad. Nat. Sci., p. 23, and Geo. Sur. 

 III., vol. 6, p. 500, Niagara Gr. 



fungosus, Hall, 1861, Geo. Rep. Wis., p. 

 15, Galena Gr. 



globularis, Hall, 1861, Supp. Geo. Sur. 

 Wis., p. 16, and Geo. Sur. 111., vol. 3, p. 

 301, Galena Gr. 



hemisphericus, Hall, 1861, Geo. Rep. Wis., 

 p. 16, and Geo. Wis., vol. 4, p. 269, 

 Niagara Gr. 



infundibuliformis, Eaton, 1832, (Coscin- 

 opora infundibuliformis,) Geo. Text 

 Book, p. 44, Low. Held. Gr. 



