152 PSEUDOCERATITES OF THE CRETACEOUS. 
This species was named erroneously Glottoceras in a note quoted above 
and accidentally left uncorrected in the proof. 
The great regularity of the outlines of the bifid saddles and the small 
dividing marginal lobes are probably characteristic, as well as the fineness 
and number of the tubercles of the outer lines and the presence of a third 
line beginning, apparently, on the latter part of the outer volution. 
Locality: Celendin, Peru. 
Age: Cenomanian? 
KNEMICERAS GABBI n. sp. Hyatt. 
Pl. XVIIL, figs. 1-3. 
Ammonites attenuatus Gabb, 1877, Jour. Acad. Nat. Sci. Philadelphia, 2d series, Vol. 
VILL. p. 264, pl. 36, fig. 1 @ and d. 
The originals of Gabb’s figures have not been found in the collections 
of the Academy of Sciences of Philadelphia and I could not obtain them 
for comparison, but the suture line figured by Gabb is distinct from that 
given on Pl. XVII of this work, and Gabb’s form is much stouter at the 
same age, has larger nodes and a broader venter. The old age with a 
rounded broad venter is probably not particularly distinctive, although it 
may perhaps be that this change never occurs to such excess in true 
attenuatum as it does in gabbi. 
Locality: Quebrada de Huari, Peru. 
Age: Cenomanian? 
KNEMICERAS UHLIGI (Choffat). 
Placenticeras uhligi Choffat, 1898, Faune Crét. du Portugal, Vol. I, 2d series, pp. 4 
and 77, pl. 2, figs. 3-5; pl. 4, fig. 2; and pl. 22, figs. 4446. i 
This is a compressed species similar to Kn. compresswm, but differing in 
the sutures. The saddles are very broad and have flat bases with more 
denticulations. The lobes are more like those of compressum, but the inner 
ones are quite different. The marginal divisions are less complete than in 
compressum. 
Locality: Portugal. 
Age: Lower Bellasian (Cenomanian.) ; 
