868 Reriews—Dr. G. Holn—Hyolithes and Conularia. 
Eastern portion of the United States and Canada, and, what is stili 
more strange, to that of the Cape region of South Africa, judging 
from the fossils collected by Bain and worked out by Salter and 
Sharpe; and also to the Devonian Fauna of the Falkland Islands 
discovered by Darwin and described by Morris and Sharpe. The 
author gives lists of the Bolivian species and of the corresponding 
species in the countries just mentioned, which show very distinctly. 
the striking relationship of many of the fossils in these widely 
separated areas. 
To give one or two examples from the brachiopoda: Leptocelia 
flabellites, Conrad, sp., is a well known form in the Oriskany sand- 
stone and Upper Helderberg of North America; it is very abundant 
in Bolivia, and the same species or a closely allied variety has been 
described from the Falkland Islands and from South Africa under 
the name of Orthis palmata, Morr. and Sharpe, whilst curiously 
enough, it is not recorded from Devonian rocks in other areas, and 
it is unknown even in the Devonian rocks of Brazil. Tropidoleptus 
carinatus, Conrad, sp. and Vitulina pustulosa, Hall, again, are two 
very distinctive species of local occurrence in the North American 
Devonian ; they have a nearly similar distribution as L. flabellites, 
but the former occurs as well in Brazil, and is considered by the 
author to be the same as Stérophomena laticosta, which is found in 
the Devonian of this country and other parts of Europe; whilst the 
latter species is restricted to N. and S. America and 8. Africa, and 
is not found in any other region. 
From a review of the whole of the fauna, Dr. Ulrich. considers 
that the Icla shales correspond to the horizon of the Corniferous 
Group, and the Huamampampa sandstone to that of the Hamilton 
Group in the Devonian series of N. America. The Devonian beds 
both in 8. America and in §. Africa appear to be shallow water 
deposits, and they resemble each other in the comparative rarity of 
Cephalopods and corals. The very striking facts relating to the 
distribution of these Devonian fossils which the author has brought 
to light in the present memoir, deserve the careful consideration of 
all interested in paleontology. 
TV.—Svericus Kamprisk-SinuriskA HyoLirHip# ocH CoNULARIIDZ. 
Af Geruarp Hotm. With an English Summary. Sveriges 
Geologiska Undersékning. Ser. C. No. 112. Stockholm, 1893. 
On tHe Hyoniraipm anp CoNULARIIDH IN THE CAMBRIAN AND 
SimuRiAN StRaTA OF SWEDEN. By Guruarp Houm. Ato. pp. ix. 
and 178, pls. 1.—vi. 
HE shells included in these two families have been generally 
ranked with the Molluscan order Pteropoda; but considerable 
doubt of their right to this position has been expressed by Pelseneer, 
one of the best authorities on recent Pteropods, who is unable to find 
any resemblance on which relationship could be based between the 
fossil forms and the existing members of this division. The author 
agrees with this view and apparently considers both these families 
as extinct and their systematic position uncertain, and he further 
