186 
BACUL1TES Faujasii. 
TAB. DXCII. —Jig. 1. 
Spec. Char. Smooth ; section oval ; sides com- 
pressed. 
Syn. Ammonite droite. Faujas, Hist . Nat. de la 
Mont, de St. Pierre , 140. pi. 21. f. 2. & 3. 
Baculites vertebralis. Lam. Syst. 103. 
— Faujasii. Lam. Hist. 7. 647. 
Both edges of this species are equally rounded, and the 
sides a little compressed : there is no appearance of any 
kind of undulation upon the surface. 
A cast in Chalk, figured from the collection of C. B. 
Rose, Esq. : it was found at Norwich. We have seen a 
larger specimen from Hamsey, in Mr. Goodhall’s cabinet. 
It is very near B. ovata of Dr. Morton, in the Journ. of 
the Academy of Nat. Sciences of Philadelphia, vol. vi. ; 
but we cannot trace any undulations upon the sides. 
BACULITES obliquatus. 
TAB. DXCII .—jigs. 2. & 3. 
Spec. Char. Surface undulated; section oval; undu- 
lations oblique, annular, deepest at the margins. 
Syn. Hamites baculoides. Mantell , Geol. Suss, 
p. 123. t. 23. /. 6. & 7. 
The very oblique undulations or furrows which pass all 
round the surface readily distinguish this species : they 
are generally deepest over the part where the siphuncle 
is placed, which is marked by S in the figures. The 
shorter (fig. 2.) represents an unique specimen, that shows 
the form of the aperture, which is placed obliquely ; on 
each side is a large oval lobe, placed anteriorly and bent 
backward : upon the specimen of which two portions are 
represented (fig. 3.), may be seen the contractions upon 
the cast produced by the thickened shell near the edge of 
the aperture at each succeeding period of growth. 
An abundant fossil in the Gray Chalk Marl about 
Lewes. The specimens were placed in Mr. Sowerby’s 
Museum many years ago by his liberal friend G. Mantell, 
Esq. : they are from Hamsey. 
