284 RECORD OF SCIENCE FOR 1887 AND 1888, 



R. P. Whitfield (297, 299) remarks upon the fossils of the New Jersey 

 Cretaceous. lu the article in the American Naturalist (299) a synopsis 

 of the number of species in each, zone of the Cretaceous rocks of New 

 Jersey is given, and also an account of the number of New Jersey 

 species occurring in the corresponding beds of other States. 



THE CENOZOIC. 



Aug. Heilprin (102) discusses the classification of the PostCretace- 

 ous department. This is mainly a geological paper, but the author 

 makes some timely remarks upon the value of faunas for determining 

 chronology. He says: ''The absolute succession of equivalent faunas, 

 or faunas of a practically identical facies, which has been demonstrated 

 for the greater part of the world, clearly establishes the claims of the 

 faunal element as the guide propre in the determination of chronology." 

 In another paper (103) Mr. Heilprin presents additional lists of species 

 of Miocene Mollusca of New Jersey, and the following new species are 

 described : 



Murex SLilolwnsis, p. 404, no figure. 



Pleurotoma pseiidehurnea, p. 404, no figure. 



Triforis ierebrata, p. 405, no figure. 



Fecten Humphreysii, var. JVoolmani (new var.), p. 405. 



Otto Meyer has produced several papers during the two years (182, 

 183, 184, 185, 186, 187). In the paper (183) on the " Invertebrates from the 

 Eocene of Mississippi and Alabma," the following new species are de- 

 scribed : 



Odostomia Boettgeri, p. 51, pi. iii, f. 4. 



Turhonilla major, p. 51, pi. iii, f. 3. 



Dentiterehra (gen. nov.), p. 51. 



Dentiterehra prima, p. 52, pi. iii, f. 2. 



Pleurotoma Aldrichi, p. 52, pi. iii, f. 7, 7a, 7b. 



Tornatella volntata, p. 52, pi. iii, f. 11. 



Unicardium (?; Eocense, p. 53, pi. iii, f. 14, 14a. 



Mikrola (gen, nov.), p. 53. 



Mikrola MississippienHis, p. .53, pi. iii, f. IG, IGa, 166. 



Crucibulum antiqimm, Meyer, Bull, i, Geol. Survey Ala., 1880, p. G8 

 pi. I, f. 11, is found after cleaning to be a Balanus with preserved oper- 

 culum. The names of a few additional Foraminifera of the Eocene of 

 Mississippi and Alabama are given on p. 65. In the paper on the Mio- 

 cene invertebrates from Virginia (185) the author i)resents a list of the 

 smaller Mollusca identified in the sand adhering to the larger species, 

 collected from the Miocene beds near Yorktown. The following new 

 species are described : 



Cwcum stevensoni, p. 139, f 4. 

 Cwcum virginianum, p. 139, f. 3. 

 Pyramin promilium, p. 140, f. 1. 

 Astarte orbicularior, p. 141, f. 6. 

 Semele (?) virginiana, p. 143, f. 10. 



