PALlX)NTOLOGY. 289 



the series of deposits of the niaritiiiie provinces of eastern North Amer- 

 ica much more closely correspondiiii; witb those of western Europe than 

 with those of the iuterior of the American continent. 



PROTOZOA AND SPONGES. 



Sir William Dawsou and George Jennings Elinde (72) describe some 

 new species of fossil si)onge8 Irom Little Metis, Province of Quebec 

 Canada. The following new species are proposed: 



ProtospoiKjia tetranema, Dawson, p. r)'2-5;^, f. 1, and further dcscriboil and dia- 



ciissed by Hindc, pp. ();?-G5. 

 Hyalostelia ineth^nica, Dawson, p. 54, and HIihU^'h coinmcnts, p. 05. 

 Cyathoplini'us qi<el>cceiisi , Dawson, p. 51, Hindu's conunouts, pp. G5-G7. 

 Buthotrepkis pergracilis, Dawson, p. 55. 



G. J. llinde (114) discusses the sj)icules and structure oi Archccocya- 

 thus )U()i(janeiisift. The author conchides that the sponge spicules found 

 in association with this fossil are not [)art of its structure, and that the 

 so-called " branching spicula" are siliceous replacements of the tissue 

 of its outer wall; but he does not conclude that the Arcfuvocyathus is 

 allied to the siliceous sponges. He is of the opinion that the fossil was 

 originally calcareous. 



C. D. Walcott (259) explains and defends his reference of Archccocya' 

 thus prof und lis of Billings to Meek's genus Ethmophyllum, as proposed 

 in his recent publication. Thirtieth Bulletin of the U. S. Geological 

 Survey. 



Joseph F. James (123) discusses the Protozoa of the Cincinnati group. 



George J. Hinde (111) considers the species Hindia fibrosa of Hoemer 

 to be identical with Astylospongia inornata, ITall, 181)3, and that the 

 genera Hindia and Astylospongia are closely allied. 



P. M. Duncan (74) makes a critical reply defending his establishment 

 of the genus Eindia, claiming that Roemer was ignorant of the char- 

 acters which indicate the relationship of his species to the sponges. 



Anthony ^Yoodward (307) published a sui)plement to his " Bibli- 

 ography of the Foraminifera" (Fourteenth Annual Report of the Geo- 

 logical Survey of Minnesota, pages 1G7-311) in the Journal of the New 

 York Microscopical Society, January, 1888. The impcrfeijtions of this 

 work called forth the severe ciiticism of Mr. Charles 1). Sherborn (Na- 

 ture, vol. 37, pp. 583-584, 1888), who i>ublished in London an exhaustive 

 treatise (238) on the " Bibliography of the Foraminifera, recent and fos- 

 sil, from 1505 to 1888." 



James Hall (94) gives some interesting statistics in regard to the 

 Dictyospongidcv. They are recorded as ranging geologically from the 

 Utica slate to the Sub-carboniferous, and geographically are reported 

 from the States of New York, Pennsylvania, Ohio, and Indiana. A 

 list of forty species is given and a map of Steuben (/ountyon which are 

 marked the localities where Dictyophyton has been found. 

 H. Mis. 142 19 



