RevleiD of Recent Geological Literature. 129 
Tiaraconcha, Freeh. {Slava, Barr.) The recognition of Freeh's 
term proposed as a substitute for Barrande's much more euphonious 
name Slava is without justification. Only to a German is the name 
barbarous because of its tchechish origin. These are inflated shells, 
hingeless and with an obscurely defined cardinal area. The early parts 
of the shell are concentrically marked but in later growth a radial 
plication is assumed. 3 sp. middle and upper Devonian. 
Buchiola, Barr. (Glyptocardia, Hall.) Here is a really first success- 
ful attempt to resolve the great mass of material everywhere known in 
the Devonian as Cardiola retrostriata into minor divisions or "species." 
The undertaking is a praiseworthy one as it helps to a better under- 
standing of the relation of widely distributed variations of form. The 
author designates 17 species all adhering pretty closely to the type of 
Cardiola retrostiiata. and these are distributed from the lower to the 
upper Devonian. It is not likely that this type in New York though 
abundant and having a similar range is susceptible of so narrow 
division. The hinge-structure has been unknown and the sentence 
" Inneres unbekannt " is still passed upon it. [The writer's prepara- 
tions of Portage specimens of B. speciosa show a linear hinge-line which 
is somewhat elevated, and finely denticulate, the inner part apparently 
raised above the outer from which it is separated by a clear line, this 
line having the aspect of the margin of a very narrow subapical area]. 
OpistliocxMun nov., includes Cardiola-\\ke species with sharply defined 
concave area behind the beak and a triangular ligament area. Lower 
upper-Devonian. 
Cardiola, Broderip. This genus is left as a sort of catch-all for palae- 
oconchs whose hinge structure is not understood. Nothing new is as- 
certained with reference to the structure of the type species. The 18 
species here referred to the genus are certainly heterogeneous, as shown, 
if in no other way, by the affinity of some to certain New York intu- 
mescens-zone forms whose critical structure is known to render them 
quite distinct from Cardiola. 
Lumdicarditim, Miinster. A great service toward bringing order out 
of the chaotic mass of species commonly referred to this genus has 
been rendered by the close restriction of this term. It may be objected 
that the writer here, as elsewhere at times, has not been sufficiently cau- 
tious about determining the characters of the genus from the type species 
and in the aVjsence of a specified type from the first described species. 
The first species of Lunulicardiuvi is L. seinistrudum, pretty clearly 
defined and figured. Whether this is congeneric with Beushausen's 
conception is difficult to say. Miinster seems to have erred in one di- 
rection, in referring to the broad posterior vertical flattening of the 
valve as a lu*uie, hence speaking of it as anterior, but Beushausen 
construes this a posterior ligament area and finds a true lunule on the 
other side of the beak. As now restricted the shells are subcircular, 
without dehiscence and radially plicate, and represented here by only a 
single species. 
Chainocardiola, Holzapfel. This is one of the genera set off from 
Lunulicardinm. ' It is emended by the author to include equivalve. 
