452 General Notes. [ May, 
eight years ago I handed to one of the editors of this journal, had 
well needed a revision before its late publication. As however 
no opportunity was given me to revise it, I beg to add the follow- 
ing emendations, based on the late discoveries by Dr. Alfred 
he Cretaceous system should be stricken out from the list, 
the beds previously supposed to belong to this system being 
Jurassic of a higher horizon than the “No, 1, upper beds ” at 
Cape Boheman. The fossil plant determined as Sequoia reichen- 
achti belongs to another genus of conifers, allied to Araucaria. 
The Permian system should be added to the list, beds of this 
system existing everywhere on the Ice fiord and Belsound 
between the Carboniferous and Triassic beds. 
In the Carboniferous system the “1, upper beds ” should be 
omitted from the list; they are identical with “3, ursastuffe, 
but placed on the top of “2, calcareous beds” by an inver- 
longer doubtful. Nathorst has found, on Dickson bay, and £ 
Ray Lankester described, characteristic fossils, ¢. 27. Scaphaspis 
and Cephalaspida— Josua Lindahl. 
NICHOLSON on STROMATOPoRIDÆ.— H. A. Nicholson, in his 
monograph of the British Stromatoporoids, frankly accepts the 
views of Carter, Lindstrom, Zittel and others as to their coelen- 
terate affinities, and regards them as a special group of the Hy- 
drozoa, having on the one hand relationships with Hydractinia, on 
the other with Millepora. The skeleton of the typical Stromato- 
poræ is penetrated by numerous minute flexures, but essentially 
parallel vertical tubes, not bounded by distinct walls, but enclosed 
by the vermiculate fibers of the ccenosteum, precisely like the 
zooidal tubes in Millepora: These tubes are traversed at intervals 
by calcareous plates. A detailed comparison between Hydrac- 
tonia echinata Flem., and forms of Actinostroma Nich., shows 4 
remarkable similarity between the chitinous skeleton of the first 
and the large calcareous coenosteum of the second. Our author 
arranges the group in four families, two of which, Actinostrom' 
dz and Labechiidze, are Hydractinoid, while the Stromatopor 
and Idiostromide may be regarded as Milleporoid. The last 
family contains genera which have a central, axial, tabulated tube 
aoe proper wall, giving off lateral branches, which 
ivide, 
Fossıt Hiprororami.—Dr. Henry Woodward, in a review of 
os _ the species of Hippopotamus, shows that at least two species (H. 
identical W! 
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