162 The American Naturalist. [February, 
axis, from which a series of pinnules arose on two opposite sides, not 
quite opposite to each other at their origin, but slightly alternating. 
These pinnules were probably cylindrical, somewhat club-shaped, and 
attached to the axis by the knob-like inner end. Since the name 
Buthograptus is misleading, the author suggests Bythocladus as more 
appropriate. Of the so-called Oldhamia, Prof. Whitfield has found 
three forms which he describes and figures in the Bull. Amer. Mus. Nat 
Hist., Vol. VI, 1894. 
A new fossil fish, Psammosteus taylorii, from the Upper Old Red 
Sandstone of Morayshire, Scotland, is reported by Dr. Traquair. The 
new species is based on detached plates thick and smooth internally, 
and as to contour are gently hollowed in boat-like fashion. The 
microscopic structure of the remains suggests that they were Selachian 
in their nature. (Ann. Scottish Nat. Hist., 1894.) 
Bulletin No. 4 of the Illinois State Museum of Natural History 
contains descriptions by Miller and Gurley of thirteen new Crinoids 
from the Upper Devonian and Niagara of Indiana, Kentucky and Illi- 
nois. Three plates accompany the descriptions. 
r. E.O. Hovey regards the Lower Magnesian and Lower Car- 
boniferous cherts of southern Missouri due to chemical precipitation at 
the time of the deposition of the strata in which they occur or before 
their consolidation. (Amer. Jour. Sci., 1894.) 
Mesozoic.—The study of new material by Prof. Seeley confirms 
Huxley’s: conclusions concerning Fuskelesaurus brownii, a fossil 
Dinosaurian from South Africa. The jaw is formed on the type of 
Megalosaurus, but the pubis resembles that of Massospondylus. Prof. 
Seeley places it in the Saurischia in near association with the latter 
genus and Zanclodon, though with a near approximation to Megalo- 
saurus. The evidences for these conclusions are given in the account 
to the several bones. (Amer. Mag. Nat. Hist., Nov., 1894.) 
M. H. E. Sauvage calls attention to some reptiles found in the upper 
part of the Jurassic beds of Boulonnais. A list of the species deter- 
mined by the author comprises four Ichthyopteryians, eleven Saurop- 
terygians, one Pterodactyle, four Dinosaurians, eight Crocodiles and 
seven Chelonians. (Revue Scientifique, Dec., 1894.) 
According to Capt. H. G. Lyons, the Nubian sandstone of Egypt 
and Nubia is of Cretaceous age, and is probably an estuarine deposit. 
In the Lybian Desert this sandstone forms an immense table-land, 
weathered into flat-topped masses and truncated pyramids, witnesses of 
the amount of erosion that has taken place. Upper Cretaceous rocks 
