78 Scientific Intelligence. 



Among the plants of Richmond and North Carolina the follow- 

 ing have been found also in New Jersey or the Connecticut 

 valley : Schizoneura planicostctia, Macroptceniopteris magnifolia, 

 Clathropteris platyphylla, JBambusium Carolinensef, Palissya 

 Braunii. Pachyphyllum (Cheirolejns) Milnsteri, P. brevifolium 

 Newberry, Dioonites longifolius Emmons. The age arrived at, 

 for the beds is that of the Rhretic or Upper Triassic. 



Dr. Newberry mentions his discovery, many years since, of 

 Triassic plants in New Mexico, at the old copper mines of Abi- 

 quiu, and at the Los Bronces on the Yaki River in Sonora, and 

 the important fact that among the species four of those from Los 

 Bronces are also North Carolina species : Pecopteris bulletins 

 Bunbury, P. falcatus Emmons, Tmniopteris magnifolia Rogers 

 and Otozamites Macombii, which last was also found at Abiquiu. 

 The Abiquiu beds are in the upper part of the Triassic formation 

 (there 2000 feet thick) and directly under the Dakota group of 

 the Cretaceous. 



The fossil fishes described belong to 28 species and half of 

 them are new. The genus Diplurus, a new Coelacanth genus, 

 contains one species, D. longicaudatus Newb. ; Ptycholepis, one ; 

 P. Marshii Newb.; Dictyopyge, one; D. macrura Egt. which is the 

 most common species in the Richmond basin, Acentrophorus one ; 

 A. CViico^ensz's Newb. ; Catopterus,six; and Ischypterus, eighteen. 

 Of these, as the Report states, Catopterus gracilis, C. anguilli- 

 formis, G. parvxdus, C. macrurus (Egerton's Piety opyge ma- 

 crura), Ischypterus macropterus, I. ovatus, I. Agassizii, J. par- 

 vus, I. Marshii, were described by Mr. W. C. Redfield, the first 

 early systematic worker on these Triassic fishes, and one, Ischyp- 

 terus latus, by J. H. Redfield. The fishes are finely figured on 

 twenty of the twenty-six plates. The Diplurus longicauclatus 

 is grandly exhibited full size on the folded plate, pi. 20, though 

 2\ feet long. The other plates are occupied with figures of the 

 fossil plants. 



2. Map of the region of Duck and Riding Mountains in 

 Northwestern Manitoba ; by J. B. Tyrrell, Geol. Survey Canada. 

 — Duck and Riding Mountains are elevations rising from 2000 to 

 2*700 feet above tide level just west of the Winnipeg region. 

 The Map has a special interest because of its contour lines and 

 the bearing of the facts on the western boundary of the Quater- 

 nary Lake Agassiz. The " ancient beach," a gravel ridge, has, 

 near longitude 100° 20' W., 51° 15' N., an elevation of about 

 1084 feet above the sea level, and 50 miles to the north at 52° N., 

 in longitude 100° 40' W., 1201 feet. Another similar ridge about 

 a mile west of this is 50 to 75 feet higher in corresponding posi- 

 tions. The author discusses briefly the condition of the ancient 

 lake or lakes, the glaciers of the country, and the question as to 

 changes of level over the region. 



3. Bulletin of the American Museum of Natural History, 

 Central Park, New York City. Vol. ii, No. 2, March, 1889.— This 

 number of the Museum Bulletin contains two papers by J. A. 



