No. 1614. NEW AND OLD CARBONIFEROUS FOSSILS—GIRTY. ASS) 
Internal structures not known, probably Productoid and not 
strongly developed. 
This interesting type at once suggests the genus Lichthofenia, 
and, as already pointed out by Schellwien, Zegulifera is without 
much question closely related to that genus. ‘There is, however, a 
less complete development of vesicular tissue, joined with less pro- 
nounced internal structures, and above all an absence of the envel- 
oped area and pseudodeltidium. TZegulifera may possibly be con- 
sidered a Productus (Marginifera) which has assumed the habit of 
self-envelopment, while /ichthofenia may possibly be that of an 
Aulosteges (Strophalosia) which has done the same thing. 
T. armata is therefore a Tegulifera, rather than a Richthofenia, 
and apparently a true representative of Schellwien’s genus. It 1s 
clearly distinct from the typical and previously only known species 
of Tegulifera, however. T. deformis comprises elongate, more slen- 
der shells, which are without apertural spines. 7. armata seems 
also to be more completely self-invested, since the whole primitive 
shell appears to be enveloped by later deposits. At least I have seen 
no instance such as Schellwien has figured of the original ventral 
shell distinct from and surrounded by later growths. 
Locality and horizon.—Pennsylvania; La Salle, I1linois. 
_ Type-specimens.—Cat. No. 37758, U.S.N.M. 
TEGULIFERA KANSASENSIS, new species. 
Plate XXI, figs. 1-7. 
This species is so related to the preceding one that to some the 
advisability of separating them may seem doubtful. It forms a 
larger and considerably more elongate shell, also one which is apt to 
be more irregular and contorted in its growth. Fine radial costie 
are usually present, though sometimes not very distinct; yet in most 
cases they can be observed. While it is true that the specimens of 
I. kansasensis are not preserved favorably for showing this feature, 
the large spines which project from the aperture of 7. armata appear 
to be entirely lacking from them. On these accounts it has seemed 
desirable to separate the Kansas form as a distinct species. It ap- 
pears to be more nearly allied to 7. typicalis than 7. armata, but is 
believed to be distinct, by reason of its more or less strongly costate 
surface. 
It was this spectes which in listing the fauna of the Kansas Penn- 
sylvanian in 1903 I referred to as Proboscidella sp.* With but little 
question it should not be placed with Proboscidella. 
Locality and horizon.—Piqua limestone (?); 24 miles west of 
Crane, Kansas. 
Ly pe-specimens.—Cat. No. 538470, U.S.N.M. 
@U.S. Geol. Surv., Bull. 211, 1903, p. 79. 
