a 06 isi Nfir 
The Ohio V^aturalist, 
PUBLISHED BY 
The Biological Club of the Ohio State University. 
Volume VIII. JUNE. 1908. No. 8. 
TABLE OF CONTENTS 
Branson —Noteson Dinichthys terrelli Newberry, with a Restoration.363 
De la Torre Bueno—O n the Aquatic anR Semi-Aquatie Hemiptera Collected by 
Prof. James S. Hine in Guatemala. (First Paper.).,. .370 
NOTES ON DINICHTHYS TERRELLI NEWBERRY, WITH A 
RESTORATION. 
Contribution from the Geological Laboratory of Oberlin College. 
E. B. Branson. 
In volume seven of the Ohio Geological Survey, page 626, 
Professor A. A. Wright gives measurements of the bones of an 
almost complete specimen of Dinichthys terrelli Newberry. 
This is probably the most complete specimen of Dinichthys ever 
collected. The only bones missing are right mandible, right antero- 
supero-gnathal, left postero-supero-gnathal, left postero-dorso- 
lateral, and the median ventrals. The skull is crushed in such 
a way that the right suborbital lies at the right in the same 
plane as the roof of the skull. The left sub-orbital and left 
margin of the skull lie against the bottom of the roof. The dorso- 
median is broken and the shaft turned to the left. 
Many of the bones are not perfectly preserved. The lower 
part of the right clavicular is missing, neither antero-dorso- 
lateral is perfect, the left clavicular has several parts broken 
away, the left suborbital is imperfect posteriorly and the right 
suborbital is imperfect anteriorly, and other bones have small 
portions missing. 
The accompanying restoration is made from this specimen 
and the excellence of the specimen leaves few points in doubt. 
Nearly all of the points were checked up with other specimens. 
The ventrals are those figured by Professor A. A. Wright in 
volume seven of the Ohio Geological Survey.* The specimen 
furnishes no positive indication of the relation of the ventrals 
to the other bones, but the left antero-ventral is crushed against 
the right antero-dorso-late^al. The position of the ventrals 
shown in figure 1 represents nothing more than the writer’s opin¬ 
ion of their proper location. 
* Ohio Geological Survey, Vol. VII, Plate XLIV, figs. 1, 2, 3, 4, and 9. 
LIBRARY 
NEW YOR 
BOTANIC A 
Garden, 
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