491 
It cannot be denied that in general appearance Belemnites GanJumi greatly 
resembles BelemniteUa plena, especially those figures giyen by D Orbigny under the 
name of Belemnitella vera,* but, of course, so far as we know them, the difference is a 
generic one. 
Log. Cambridge Downs Eun, Plinders Eirer, six mile.s from Eichmond Downs 
Station {Mr. Sanders) ; Aramac Well, at two hundred and thirty-eight feet {S. Slmr- 
wood) ; Plinders Eiver, near Hugheuden {Itev. T. W. Hamm) ; Thurloo [f Thurles] , two 
hundred miles north-west of Bowen, at four hundred feet deep (Dr. J. G. Cox— Mining 
and Grool. Mus., Sydney); Barcaldine {The late Tames Sniitli) ; Wood-duck Creek, near 
the Peake, Central Australia {Messrs. J. Ganham and Clia?idler,fde Tate— Colin. Tate) ; 
Base of AYalker’s Table Mountain, Plinders Eiver, as Belemnitella diptyclia, McCoy 
{Messrs, Carson and Sutherland, Jlde McCoy — Colin. JIational Museum, Melbourne). 
Bet.bmnites ? Liteestugei, sp. nov., PI. 35, figs. 17-20. 
S2}. Ghar. Guard small, elongate, claviform, posteriorly extended or graduated into 
a luucro of greater or less length, depressed (from dorsal to ventral) but not compressed 
(from side to side), fi'om three-quarters to one and a-half inches long ; ventral surface 
bearing a groove exterrdirrg for about half the guard leirgth, arrd sometirrres even more ; 
axis very excentric and ventral, superficial, and showrr orr the surface as a light-coloured 
line ; section oval to elliptical ; lateral vascrrlar rrrarkirrgs double, very fine, extending 
the whole length of the guard. 
Ohs. I have ventured to describe this peculiar little Belernnite under the above 
rrame, believing it to be new to Australia, in honour of Professor Archibald Liversidge, 
P.E.S , of Sydney University, to whom I amirrdebted for an opportunity of examinirrg 
many interesting fossils. 
The shape at once reminds us of B. minimus. Lister, of the Gault, by the 
extended piire-like posterior end, and the size. It is distinguished, however, by the 
marked excentricity of the axis of the guard, which in our species is ^ only^ superficial. 
There appears to be a long ventral groove, but how far this extends it is difficult to say, 
as the proximity of the axis to the surface seems to have produced a line of least 
resistance, and sometimes gives rise to. a crack. 
In one example (PI. 35, fig. IS), which may be this species, is a fine grooved 
line on the guard, also impressed on the phragmacone, which is partially preserved, 
passing through all its shelly layers. Viewed from this light, the crack above mentioned 
is probably in place, and represents the ventral groove, wffiich extends the whole length 
of the guard. • • i • 
The excentricity of the axis is well shown in some cross-sections, and in such it 
is seen to approach the periphery immediately below the outermost shelly layer. 
PI. 35, figs. 17, 19, and 20, seem to show a central canal along the axis line of the 
guard, which is made apparently by weathering. This may be related to an extension 
of the initial spherule, as described by the late Prof. J. Phillips, who says It is 
supposed by some writers to have been extended backward into a small canal at the 
meeting of the fibres along the axis of the guard,” &e. The latter is very apparent in 
some of our specimens, and it is equally clear that it becomes a canal oi tube. ^ ig. 
may be explained in this way, or perhaps it may be a portion of the alveolus with the 
siphon remaining. , 
Hauer has described a species from New Zealand under the name of ±>. aucc- 
landiensisj'f which to some extent resembles our species. 
* Pal. Pranj. Ter. Cret. Ceph. i., Sappl., 1847, t. 2. 
t EeiaeOaterr. Pregatte Kovara, 18-57 -59, Geol. Theil., Ed. i., 2 Abth., 1865, p. 
29, t. 8, f. So. 
