324 University Geological Survey of Kansas. 
dimestone this outer layer almost invariably peels off, giving 
the shell the appearance described by Shepard. This feature 
4s more strongly characteristic of this species than of any other 
we have met in the Coal Measures rocks. It should also be 
stated that, judging from the locality from which they were 
daken, there is very strong probability that Professor Shepard’s 
specimens were broken from limestone. So far as Shepard’s 
figure is concerned, it is not so accurate as those employed by 
paleontologists at the present time, and, dissociated from the 
description, could not be applied to any species with certainty. 
‘In the light of these considerations we feel it is but just to 
ascribe the description to this species, which it certainly char- 
acterizes in an uncritical way and is the first description of it. 
it is so well known that no confusion need follow the change. 
Reticularia perplexa (McChes.) has been referred to the 
genus Squamularia of Gemmellaro, inasmuch as the hinge 
structure differs from that of Reticularia and agrees with that 
of Gemmellaro’s genus, according to Doctor Girty.?®° Chonetes 
granulifer Owen was recorded from the Cherokee shales in one 
of our previous lists. Since then Mr. F. C. Greene has 
worked out its development and range and found that the 
Cherokee shales specimens belong to a distinct but closely 
allied species. Schizodus circulus? is in all probability 
the young of an unknown species. EHchinocrinus agassizi 
Hall, of the previous lists, is ’. aculeatus Shum., but the figures 
‘by Keyes are not typical of it. Since the bulk of the paper was 
written and the charts made out, Bather?” has shown that the 
term Archzxocidaris was antedated by H’chinocrinus of Agassiz, 
and will have to be replaced by it. The change is made in the 
dists following. Chonetes flemming? is changed to C. variolatus. 
C. geinitzi is substituted for C. glaber. C. lxvis Keyes is a 
distinct species of very different range. 
The genus Bellerophon has been divided into several genera. 
Qur species fall under the heads Bellerophon, Bucanopsis, 
Huphemus and Patellostium. The genus Pleurotomaria has 
been subdivided and the species are referred to the proper 
genera so far as they have been worked out. The genera under 
which our species fall, aside from those temporarily referred 
to the original genus, are Huconospira, Phanerotrema, Trepos- 
pira and Worthenia. Nuculana bellistriata attenuata Meek is 
269. Op. cit., pp. 887-392. 
270. Ann. and Mag. Nat. Hist., ser. 7, XX, Noy., 1907, pp. 452-456. 
