N. A. INVEKTEBKATE PALAEONTOLOGY. 747 



Seely, H. M. — A uew Genus of Cliazy Sponges, Strepliocbetus. Amer. 



Jour. Sci., 3d ser., vol. xxx, pp. 355-357, figs. 1-3 on p. 35G. iSTovem- 



ber, 1885. New Haven. 



Describes the new genus Sfrephochefus* of whicli IS. oscellatus is de- 

 scribed as the type. It occurs in connection witli well recognized Cliazy 

 forms, and esi»ecially with Maclurea magna. It is found in place in the 

 towu of Addison, Bridport, &c., in Addison County, Vermont. 



Smith, E. A.-rRemarks on a Paper of Dr. Otto IVleyer on " Species in 

 the Soutliern Old Tertiary." Amer. Jour. ^ScL, 3d ser., vol. xxx, pj). 

 270-275. October, 1885. ' :N"ew Haven. 



Criticises Dr. Otto Meyer's views, corrects his quotations of Sir 

 Charles Lyell, and oflers two kinds of evidence of the superposition of 

 the white limestone above the Claiborne sands, (a) evidence from direct 

 superiwsition, (b) from geographical position. 



Steinbiann, Gustav. — A. H. Ford : On Three new Species of Monticu- 

 liporoid Corals. uAnn. and Mag. Nat. Hist, ser. 5, vol. xiii, pp. 338-342, 

 and XII, 1884. Xcu. Jalirh. fur Min. Geol. & Pal, 1885, Band ii, p. 

 205. Stuttgart. (Abstract.) 



Uhlig y. — A. Hyatt : Fossil Cephalopoda in the Museum of Compara- 

 tive Zoology. Proceedings of the American Association for the Ad- 

 vancement of Science, vol. xxxii, August, 1883. 8vo. Ncu. JahrJ). 

 fur Min. Geol. & Pal., 1885, Band i, pp. 324-329. Stuttgart. (Ab- 

 tract.) 



Wachsmuth, C, and Barkis, W. H.— Descriptions of new Crinoids 

 and Blastoids from the Hamilton Group of Iowa and Michigan, pp. 

 1-29, pis. i, ii, figs. 1-3 on pp. 9 and 13. 



This is a collection of several articles. The first is taken from the 

 Proceedings Davenport Academy of Natural Sciences, vol. iv, p. 7G, as 

 are also the two plates, and probably the articles also ; but I have no 

 means at present of ascertaining that fact. The various articles are as 

 follows : 



(1) On a new Genus and Species of Blastoids, with Observations 

 upon tJH^ Structure of the Basal Plates in Codaster and Pentrcmites. 

 By Charles Wachsmuth. [This article, which appeared in the Geolog- 

 ical Report of Illinois, vol. vii, p. 346, has been revised by tbe author.] 



(2) Descriptions of some new Blastoids from the Hamilton Group. 

 By W, II. Barris. [This article also appeared in the Geological Report 

 of Illinois, vol vii, p. 357.] 



(3) Descrii)tion of a new Crinoid from the Hamilton Group of Michi- 

 gan. By Charles Wachsmuth. Describes Megistocrinus concavus as a 

 new species. 



(4) Descriptions of some new Crinoids from the Hamilton Group. 



* arpeqfu, I twine; hxerbc;, canal. 



