492 
These little Belemnites have also some resemblance to B. liastatus, Blainville, from 
the Oxford Clay ; but the anterior end of our form, as in B. minimus, is much too 
short, and the ventral groove in no way corresponds to the depth and distinctness of the 
former. It is also quite distinct from .B. Blainville, being distinguished 
by its posterior mucro. 
Loc. Aramac {The late James Smith). 
BELTi:M:yiTEs, sps. 
Ohs. In addition to the species described, sundry interesting fragments have 
from time to time come to light. IVTr. R, Etheridge, E.R.S., referred * * * § to phragmacones 
and alveolar cavities from Belcombe Creek, Black Downs, and compared them to 
B. ahhreviatus of the Oxford Clay and Coral Rag. 
The late Prof. J . Phillips referred to a small species from the Upper Maranoa in 
the following words f ; —“Here is a small nearly cylindrical Belemnite, with a sub-central 
axis and an acute-angled alveolar cavity. It has one long narrow groove, not clearly 
seen to be a ventral groove. Though incompletely exhibited, it must be a distinct 
species from the others It is not one of the Qanaliculati, but more probably 
one of the Sastati." 
Prom Blackall Road, nine miles from Tambo, my Colleague has collected several 
fragments, two of which are figured. In PI. 35, fig. 15, is seen a phragmacone and 
portion of a guard. The former is one and a-quarter inches long, and possesses from 
sixteen to eighteen chambers. The entire specimen is three and three-quarter 
inches long. 
The specimen illustrated in PL 35, fig. 16, differs from the preceding figure in the 
larger number of chambers in the phragmacone, and in their lesser depth. There are 
twenty-three or twenty-four chambers in the space of one inch. 
Older— TETIIABRANCHIATA. 
Pamily— AMMONITID.^. 
Genus — AMMONITES, Auetorim. 
Section— AMALTHEUS. 
Ammonites oleite, Ten. Woods, PI. 29, fig. 5 ; PI. 30, fig. 4. 
Ammonites olenc, Ten. Woods, Journ. R. Soc. N. S. Wales for 18S2 [1883], p. 150, t. 7, f. 2, t. 8, f. 1. 
Sp. Char. Shell much compressed, periphery narrowed to an acute angle; 
whorls eight and a-half probably; umbilicus apparently narrow; sutures very 
indistinct, apparently seven, much divided, rounded lobes on each side ; diameter, 
103 mm., thickness 17 mm. ; surface crossed by rather broad obtuse sigmoidal ribs 
which are rather acutely bent in the middle, some few bifurcate. {Ten. Woods.) 
Ohs. This Ammonite is compared by its author to A. Ufiexousus, D’Orb.,I from 
the Qreat Oolite, but the keel is not so acute, otherwise there appears to be but little 
difference between the two species, so far as outward appearance goes. It also 
resembles the Cretaceous A. oultratiis, D’Orb.,§ but the ribs are much more sigmoidal 
in the Australian fossil. 
* Quart. Journ. Geol. Soo., 1872, xxviii., p. 346. 
t Ibid., 1870, xxvi., p. 259. 
J Pal. Fran 9 . Terr. Jura, 1842, i., p. 422, t. 147. 
§ Ibid., Terr. Cret., i., p. 14.5, t. 46, f. 1 and 2. 
