FT. 2.] 
Sloliczka. Cretaceous Cephalopoda. 
35 
Ammonites Vaju, Sloliczka, Ceph. loc. cit., p. 132. 
Prof. Geinitz in Dresden directed my attention to a few specimens in his Museum, being 
apparently identical with those described under the above name, but on the other hand not 
easily distinguishable from Amin, peramplus. The relations of the two species are indeed 
remarkable, and Amm. Vaju would only seem to be a compressed variety of Amm. peramplus, 
still the distinctions pointed out by me (loc. cit., p. 132) are remarkably constant; none of 
our specimens of the former had the distinct furrows of the latter developed; besides this 
the direction of the ribs in both species also is somewhat different. Until more specimens 
of the present form have been found the specific distinctions must be retained. 
Ammonites Yama, Forbes, 
18 16 . Amm. Tama, Forbes, Trans. Geol. Soc., London, 18-46, VII, p. 107, PI. VII, Fig. 4 ; not idem. Ceph, loc. 
cit., p. 120. 
1865. Am. Beudanti, Brong., Stoliczka, Ceph. loc. cit., p. 142. 
I am indebted to my friend Prof Hebert in Paris for having directed my attention to the 
most constant and distinguishing character of the European Gault species, Amm. Beudanti, 
Brongn., as compared with our Indian species, which in general differs from the former by 
having the whorls less high compared to their width, laterally a little more convex, along 
the back not contracted, and the umbilicus slightly larger in proportion. There arc, however, 
of the European fossil occasionally specimens to be found, which are extremely closely allied to 
our species, and only differ by a scarcely traceable greater compression of the whorls (compare 
Pictet’s figures in Pal. Suisse, 2nd Series). The most important difference between the two 
species lies in the form of the outline of the septa. Those of Amm. Beudanti are com¬ 
paratively broader, less high, and the laterals gradually diminish in size as they approach 
the umbilicus, on the edge of which the sixth lateral saddle is situated; only one or two 
very minute ones are present on the umbilical slope. In our Indian species the outlines 
of the septa have higher, more ramifying saddles and lobes, and the third lateral saddle 
lies on the edge of the umbilicus, there being at least three additional and very oblique 
saddles situated on its sloping side. All the lobes of Am. Beudanti are arranged in an 
almost straight line, while those of the present species form a distinct curve. The number 
of the septa is tolerably well marked in d’Orbigny’s figure in the “ Pal. Francaise.” 
Prof. Forbes’ original specimen of Amm. Yama is a young shell of the present species, 
and I therefore retain the older name, which appears the more justifiable, as the specimen 
which I have previously (loc. cit., p. 120) described under that name has proved to be only 
a somewhat abnormal form of Amm. diphylloides. 
Ammonites Sacya, Forbes, Ceph. loc. cit., p. 154. 
The species described by Coquand from the cretaceous beds of Algiers under the name 
of Amm. Pauli is probably a young shell of this species (Geol. and Pal. Province Con¬ 
stantine, 1862, pi. 35, figs, 1-2). 
SCAPIIITES. 
SCAPHITES CUNLIFFEANTTS, Forbes, sp. 
Ammonites Cunlijfei, Forbes, Ceph. loc. cit., p. 97. 
Scaph. testa lateraliter compressa, costis ad intervalla fortioribus, flexuosis, mme- 
rosis brevioribus ac. tenuioribus interpositis oi'nata, primis ad marainem umbilicalem 
et dorsalem acute tuberculatis ; anfractibus junioribus regulariter involutis, ultimo antice 
paulo-exienso, dorso subconvexo. 
The original specimen figured by Forbes in Trans. Geol. Soc., London, 1846, VII, 
pi. 8, figs. 2 a and 2 b, is unmistakably a Scaphite ; it has the last whorl somewhat more 
produced at the umbilical line, than is shown in the figure. The shell is flattened laterally, 
ornamented with numerous flexuous ribs, -which terminate in sharp tubercles at the edge 
of the back and of the umbilicus, the former being slightly rounded; the sides of the 
umbilicus are perpendicular. 
The young shell has the lateral ribs more straight, and the tubercles on the umbilical 
edge almost obsolete (see pi. L, fig. 3). 
The outline of the sutures, as represented in fig. 3 c, pi. 50, is also characteristic of a 
Scaphite, there being only the first and second lateral lobe present, while the auxiliary lobes 
and saddles rise suddenly in an oblique line towards the umbilical suture. 
