A. Smith Woodward—On the Genus Anomeodus. 489 
The fragments of Pycnodont dentition to be provisionally grouped 
under this generic name are numerous and widely distributed in the 
Cretaceous formations of Europe, and comprise, among others, the 
fossils named Pycnodus subclavatus, P. Muensteri, and P. cretaceus 
by Agassiz. On the present occasion, however, it is not proposed to 
refer to more than two new forms; an attempted revision of the 
whole subject being deferred to the forthcoming Part III. of the 
British Museum Catalogue of Fossil Fishes. One of these new 
forms is a common fossil in the Cambridge Greensand ; the other is 
represented by a fine specimen in the Brighton Museum, from the 
Sussex Chalk, affording much information concerning the structure 
of the Pyenodont skull. For the opportunity of studying the finest 
examples of the first-named species the writer is indebted to Prof. 
McKenny Hughes and Henry Woods, Esq; for the privilege of 
examining the second to Henry Willett, Esq., and to Edward Crane, 
Hsq., Chairman of the Brighton Museum Committee. 
ANOMGODUS SUPERBUS, sp. nov. Plate XVI. Figs. 5, 5a. 
Type. Left splenial ; Woodwardian Museum, Cambridge. 
A large species known only by the splenial dentition. Teeth 
of the principal series on the splenial bone slightly arcuated, 
somewhat tapering and turned forwards at the inner extremity, 
attaining a breadth more than three times as great as their length ; 
inner teeth in two series, those of the one adjoining the principal 
teeth large and irregular in form, usually with long axis oblique, 
and those of the innermost row small and rounded; flanking teeth 
in three series, smooth, diminishing outwards and all smaller than 
the large series of inner teeth. 
This is one of the commonest forms of Pyenodont dentition in 
the Cambridge Greensand, and the finest known specimen is shown 
from the oral aspect in Plate XVI. Fig. 5, from the inferior side 
in Fig. 5a. 
Form. and Loc.—Cenomanian ; Cambridgeshire. 
Anoma@opus WitLerti, sp. nov. Plate XVII. Figs. 1, a-c. 
Type. Imperfect skull, with dentition ; Brighton Museum. 
A small species, with teeth very irregularly arranged. Teeth of 
the principal series on the splenial bone obliquely set, very irregular 
in size and shape, wide mesially, tapering at each extremity, and 
not much broader than long; inner teeth relatively large in one 
series, usually broader than long with axis oblique; outer teeth in 
about three very irregular series, mostly smaller than the teeth 
of the inner series. Vomerine dentition anteriorly in three series, 
posteriorly in five, but extremely irregular; the largest teeth much 
antero-posteriorly elongated and comprised in the outermost series. 
Nearly all the teeth indented, the smaller ones having the pit 
especially conspicuous and surrounded with a crenulated margin. 
The type specimen in the Willett Collection, Brighton Museum, 
exhibits the antorbital portion of the skull with the left mandibular 
