392 The Atnerican Geologist. Juno, looo 
Mass. Here, as a part of the Schultze collection, representing years of 
accumulation, is preserved a magnificent series of Eifelian fish-remains; 
and on the basis of this material two species of Rhynchodus and one 
each of Ptyctodus and Palaeomyius were described by the writer in the 
American Naturalist for July, 1898. With one of these, Rhynchodus 
major, the dental plate figured by Dr. v. Huene would be pronounced 
by most observers identical, the merit of the new specimen consisting 
in its being more perfect than any hitherto discovered. The anterior 
beak is especially well preserved, and its appearance would indicate 
that the plate in question belonged to the lower jaw. 
Another genus of very rare occurrence in the German Devonian is 
Dipterus. Dr. Otto Jaekel reports (Zeitschr. deutsch. geol. Ges. Bd. LI. 
1899. p. 37) the discovery of the trunk and cranium of a fish doubtfully 
determinable asZ>. valenciennesiixovi^ an uncertain locality in the Rhine 
Province. From the Eifel no specimens have been hitherto reported^ 
but in the Schultze collection just referred to is preserved a single de- 
tached dental plate 2 cm long from Berndorf, in the Eifel district. It 
belongs without any question to Pander's D. iiiurchisoni, a well known 
Russian species. A primitive forerunner of the Carboniferous genus 
Orodus is also represented in the same collection by a unique tooth 
from the neighboring locality ofPelm. Crossopterygian scales and 
teeth of Onychodus occur at Gerolstein, and these together with Mac- 
ropetalichthys and Chimaeroids bring the fauna into close relation 
with the Mesodevonian of this country (Corniferous and Hamilton). 
The ichthyodorulite described by Dr. v. Huene is suggestive, of the 
distal portion of a spine (denuded of its tubercles, however) from Gerol- 
stein figured by Roemer in PI. 31 Fig. 10 of his LethcCa Geognostica, 
Vol. I, 1876. This last undoubtedly belongs to the same class of der- 
mal defenses as Acanthaspis, whether we regard the latter as arthrodire 
or ostracoderm. A smaller species, known vls A . prueinensis has been 
described from the Eifel Devonian by Dr. R. H. Traquair (Ann. Mag. 
Nat. Hist. vol. XIV, p. 370, 1894), and it appears altogether probable 
that Phlyctffinacanthus, from the Hamilton of Wisconsin, should be 
placed in the same general category. 
C. R. Eastman. 
PERSONAL AND SCIENTIFIC NEWS 
McGiLL University conferred the degree of LL. D., on 
J. F. Whiteaves of the Canadian Geological Survey at the 
recent convocation, April 30th. 
Dr. I. C. White sailed for Europe with his family May 
5th, to be absent in England and on the continent until 
October. 
Mr. Gilbert van Ingen of Columbia University is 
slowly recovering from the severe illness which has confined 
him to his home at Poughkeepsie for several weeks and 
which at one time placed his life in great danger. 
