196 Dr. A. Smith Woodward—Fish-remains, Brazil. 
wrinkles are not mentioned in the original description of &, Daviesi, 
but are well seen on some of the teeth of the type-specimen in the 
British Museum. 
Lama serra, A.S. Woodward. (PI. VII, Figs. 8, 8a, 84, 9, 9a, 10, 10a.) 
1889. Lamna serra, A. 8. Woodward: Cat. Foss. Fishes Brit. Mus., pt. i, p. 400. 
1894. eee Sedans S. Woodward:. Proc. Geol. Assoc., vol. xiii, p. 198, pl. vi, 
ngs. 5 We, } 
1898. Lamna serra, F. Priem: Bull. Soc. géol. France [3], vol. xxvi, p. 399, pl. x, 
figs. 1-5. 
Several teeth from Maria Farinha are identifiable with Zamna serra, 
which has hitherto been found only in the Upper Cretaceous (Lower 
Montian) of Mont Aimé, Marne, France. The dental crown is much 
compressed, with both faces quite smooth, and the lateral denticles 
are usually in two pairs. ‘he root is short, not bulging much 
inwards, while its nutritive foramen is situated i a groove. A typical 
lateral tooth is shown in Figs. 8, 8a, 8, bearing not only two pairs of 
lateral denticles, but also an additional minute denticle posteriorly. 
A hinder tooth (Figs. 9, 9a) also has three denticles posteriorly, but 
only one broad denticle in front. A comparatively large anterior 
tooth (Figs. 10, 10a) has the outer lateral denticle reduced to 
a minute point. All these variations are observable in the British 
Museum collection of teeth of Zamna serra from Mont Aimé itself. 
Lamya appenpicunata, Agassiz. (Pl. VII, Figs. 11, lla, 12, 12a.) 
Three teeth from Maria Farinha agree well with those of Zamna 
appendiculata, but those from the front of the jaw (Figs. 11, 11a) 
exhibit unusually small lateral denticles. 
ScaPANORHYNCHUS SUBULATUS, Agassiz, sp. 
Several small teeth from Maria Farinha belong either to this or 
a closely allied species. Similar teeth are found with Lamna serra in 
the Chalk of Mont Aimé. 
Corax PRISTODONTUS, Agassiz. 
Large typical teeth from Maria Farha represent this species, as 
already noted by Cope. 
The fish-fauna now described evidently represents the latest part of 
the Cretaceous period, and is of special interest as affording the 
earliest known evidence of Myliobatid skates. The occurrence of 
Lamna serra, which is found with Paleobalistum in Northern France, 
is also remarkable. 
EXPLANATION OF PLATE VII. 
Fic. 1.—Enchodus subequilateralis, Cope. Right palatine, outer aspect. 
2.—Ditto. Right palatine, mner aspect, showing ethmoid articulation. 
3.—Paleobalistum flabellatum, Cope, sp. Imperfect fish, one-half nat. size. 
el. clavicle ; orb. orbit ; pop. preoperculum. 
4,—Apocopodon sericeus, Cope. Median tooth, coronal and (4) lateral aspects, 
with part of superficial ganodentine much enlarged (40). 
5.—Ditto. First and second lateral teeth, inferior and (4a) anterior aspects. 
», 6.—Rhinoptera prisca, sp. nov. Portion of dentition, with part of superficial 
ganodentine much enlarged (6a). 
7.—Ditto. ‘Two median teeth, inferior and (7a) anterior aspects. 
