404 General Notes. ee 
expanse of diapophysis, .380; of posterior zygapophyses, .450; 
elevation of do., .250; elevation of do. with crest, .360. T 
species is named Camarasaurus leptodirus. 
s of an allied species recently received from Colorado, re- 
present a most gigantic animal. The transverse diameter of the 
ge vertebra is fifty-six inches, and that of the distal end of 
e femur, twenty-one inches. 
TA species of the carnivorous Dinosaurian genus se dese sic 
has lately been received from pamba locality, which adds con 
siderably to our knowledge of it. Vertebræ, limb bones apd 
teeth found together, confirm the correctness of my supposition 
as to the true affinities of the genus.! The animal obtained is 
about the size of the Hadrosaurus foulkei. The dorsal vertebræ 
display the zygapophysial mass greatly elevated on a stem which 
has a quadrate section, with anterior and posterior grooves. 
There is no hyposphenal articulation. The diapophyses are wider 
than deep, are directed obliquely upwards from the superior mar- 
gins of the zygapophyses, and have a prominent anterior superior 
border; the neural spine is short and compressed. The centrum. 
is amphiplatyan and moderately compressed at the middle. The- 
caudal vertebræ are not very elongate, and have a compressed - 
hexagonal section. The chevron facets are on produced bases. 
Many of the teeth are less compressed than usual with Megalo- 
sauroid species, and have two denticulate edges. Length of dor- 
sal centrum m. .100; vertical diameter of do., .084; transverse 
diameter of do., 073; elevation of postzyg gapophyses from cèn- 
trum, .122; elevation of neural spine above centrum, .292; length 
of diapophyses below, .130; length of a wong aire .048 ; 
depth in front .050; distal width of fem 250. I name this 
species in honor of my friend Professor Sealey, Hypsirhoplus see- 
leyanus—E. D. Cope. 
GEOGRAPHY AND TRAVELS.’ 
AFRICAN EXPLORATION.— To the account given in our last num- 
ber of the various PLENE ion sano in explorations on the 
western coast of Africa, we have now to add these further details. 
M. le Comte de Semellé who sared from Fernando Po in May, 
1878, to explore the upper Niger and Benué, returned to that set- 
tlement on reg lage 13th, last, and has forwarded an account of 
his discoveries to Europe. 
M. Soleillet has also been obliged to return to St. Louis, Senegal 
from Sego on the Niger, in consequence of the refusal of the | 
Sultan of Sego to allow him to pass through his territory. 
The Atheneum (April a SA gives the following astronomi- 
cal observations taken M. de Brazza, Okanda’s residence 
amongst the Bateke, 1° ae 59” S., 11° 59’ 48’ E.; Obemba, an 
1 This journal, Feb. 23, 1878 (March number). oe. 
_ ® Edited by ELLIs H. Yarnatt, Philadelphia. 
