264 RECORD OF SCIENCE FOR 1887 AND 1888. 



is identical with his species Bathyuriscus HoicelU of the same Bulletin 

 (p. 216, pi. XXX, f. 2, 2a), and is also a synonym. The species Ole- 

 noides spinosus was recognized previously as geuerically distinct from 

 Olenoides, and Mr. Walcott therefore proposes (p. 168) the name Za- 

 eantJioides (gen. nov.) tor this and congeneric species. By comparison 

 of specimens he also found that Rominger's Ogygia serratais a syuoym 

 for Olenoides Nevadensis, Meek, and "that Gonocephalites Gordillerce 

 Eom. = Ptychoparia Gordillerce Rom., sp., and Ogygia f f Klotzi Rom. 

 are new to the previously known Cambrian fauna." 



W. B. Dwight (76, 77, 78) announces the discovery of the Olenellus 

 fauna of the Cambrian in the Wappinger Valley limestone of Dutchess 

 County, New York. 



Henry Hicks (1«>6), in the Geological Magazine, reviews the recent 

 work done by C. D. Walcott and G. F. Matthew in the study of the 

 faunas of the Cambrian rocks of North America. 



Charles Lap worth (144) publishes evidence of the presence of the 

 lower or Olenellus fauna in Shropshire, England, and gives tables of 

 European series to parallel the American tables of the faunas of the 

 Cambrian prepared by Mr. Walcott. 



G. F. Matthew has contributed a number of interesting papers in re- 

 gard to the Paleontology of the Cambrian (167,169,170,171,172,173, 

 174, 175). The subjects of the i^apers published in the American Jour- 

 nal of Science (171) and in the Canadian Record of Science (169) are 

 apparently more fully discussed in the paper (167) which appears in the 

 Transactions of the Royal Society of Canada for ]887. In these va- 

 rious papers the author discusses the discovery and the characters of a 

 large Trilobite which is described as new (in the Am. Jour. Sci., vol. 

 XXXIII, p. 389) under the name Paradoxides regina, from Baud Ic, St. 

 John group, St. John, New Brunswick. This species is figured of the 

 natural size in the Transactions of the Royal Society ; a small cut illus- 

 trates it in the American Journal article. This is said to be the largest 

 Paradoxides at present known. Its size and that of other large Trilo- 

 bites are given in the Royal Society paper, and this one is estimated to be 

 45 by 35 centimeters in length and width. The front part of the gla- 

 bella is wanting in the specimen. 



In the first part of this article (173) the author gives reasons for the 

 opinion that the tracks observed in the oldest Cambrian rocks of Swe- 

 den, and called by Dr. Otto Torell Arenicolites gigas, and afterwards 

 changed to Psammiclmites gigas, which are also found in the Acadian 

 rocks, are tracks of a gigantic marine worm. 



In the latter part of this i^aper the author tabulates the Trilobites of 

 the first stage of the Acadian series, and indicates their relationship to 

 each other, and the geological position and range of each species. These 

 Trilobites are classified in four groups; the iirst, Agnostus nud 3Iicro- 

 discus — eyeless and with short thorax ; second, Gonoeoryphimv — eyeless 

 and with long thorax ; third, Ptychoparidcv and Ellipsocephalidm — the 



