464 Scientific Intelligence. 



newton-winchelli Clarke is shown to be an Orthocerocone retain- 

 ing Endocerocone structures, and is made the genotype of a new 

 genus. This animal, therefore, bears the long and barbaric name 

 Clarkoceras newton-winchelli. c. s. 



4. Notes on the Siluric or Ontario section of Eastern New 

 York ; by C. A. Hartnagel. Rept. N. Y. State Pal., 1903 

 (April, 1905), pp. 342-358. — This paper gives a clear exposition 

 of the late Siluric deposits of southeastern New York and their 

 correlation with the same horizons of the western part of the 

 state. It is established that these deposits were laid down in two 

 contemporaneous seas, a western or Mississippian sea and an eastern 

 basin, the Cumberland. At times some of the species are com- 

 mon to the two waters, but as a rule each has its distinct fauna. 



The Shawangunk, heretofore accepted as basal Siluric, is 

 shown to be probably the basal or invading Salina sandstone in 

 the Cumberland Basin. c. s. 



5. The Trilobites of the Chazy Limestone ; by Percy E. Ray- 

 mond. Ann. Carnegie Mus., Ill, 1905, pp. 328-386, pis. 10-14.— 

 During the past five summers, Mr. Raymond has been studying 

 the Chazy in the field, and here are presented his first laboratory 

 results. All the known Chazy trilobites are described, 35 in 

 number, of which 18 are new to the Chazy formation. A new 

 subgenus Glaphurus is proposed. The genus Ceraurus is restud- 

 ied, and the species referred to four divisions — Ceraurus, Sphc&ro- 

 corphe, Pseudosphosrexochus, and Nieszkowskia. This paper 

 should be studied in connection with one by the same author in 

 the May number of this Journal. 



The author brings out the interesting fact that the four orders 

 of trilobites into which the class is divided are present in this old 

 Ordovicic fauna ; further, that the Chazy trilobites are closely 

 related to those of the Trenton, and that three species are common 

 to the two formations. With the Beekmantown below, there is far 

 less agreement. c. s. 



6. Contributions to the Fauna of the Chazy Limestone on 

 Valcour Island, Lake Champlain • by George H. Hudson. 



Rept. N. Y. State Pal., 1903 (April, 1905), pp. 2*70-295, pis. 

 1-5. — This is the first paleontologic publication of Professor 

 Hudson, and describes 1 new cystoid, 3 crinoids, 2 brachiopods, 

 2 pelecypods, 6 gastropods, and 1 trilobite. c. s. 



7. Weber Pteraspis dunensis F. Roem. sp. ; by F. Drever- 

 mann, in Marburg. Zeitschr. Deut. geol. Gesellsch., 56, 1904, 

 pp. 275-289, pis. 19-21. — A very important paper on this Lower 

 Devonic fish, based on many specimens recently discovered at 

 Hamm, on the river Sieg., by Dr. Drevermann. c. s. 



8. Notice of a new Crinoid and a new Mollusk from the Por- 

 tage rocks of New York ; by R. P. Whitfield. Bull. Amer. 

 Mus. Nat. Hist., 21, 1905, pp. 17-20, pis. 1-4. — The crinoid is 

 Maragnicrinus portlandicus, genus and species new. Onycho- 

 cardium portlandicum is the new genus and species of bivalve. 

 Remarks are also made on Cyathocrinus ornatissimus, which the 

 author refers to Cosmocrinus. c. s. 



