The great breadth of this species in the sicular region distinguishes it 
from all others. 
Locality—Smith-street, Bendigo (No. 1425). Associated with Clono- 
graptus (?) flexilis (J. Hall) on the same slab. 
Bendigo. More definite locality not given. Nos. 1428-1449C. 
Didymograptus sp., Nos. 1436, 1447. 
Tetragraptus fruticosus , J*. Hall, Nos. 1428, 1429, 1430, 1432, 1433, 
r 435> !437> !439> T 44 2 > *444, 1448, i449 B - 
T etragraptus quadribrachiatus, J. Hall. Nos. 1434, 1437, 1443, 1446, 
1449B, 1449C. 
Tetragraptus o,pproximatus , Nich., Nos. 1440, 1446. 
Dichograptus octobrachiatus , J. Hall, Nos. 1430, 1436 (6 ex.), 1441 
(6 ex.), 1447, 1448. 
Goniograptus thureaui , McCoy, Nos. 1431, 1442 (several matted). 
Phyllograptus typus, J. Hall, Nos. 1433, I 44 2 > I 44^- 
Rhinopterocaris sp., No. 1437. 
Indeterminate, Nos. 1438, 1442, 1445, 1448. 
Lower Ordovician. Bendigo series. 
Inkerman. No. 1449A. 
The specimen collected by Mr. W. H. Ferguson is so extremely indis¬ 
tinct that no definite opinion can be expressed upon it. The marking is 
in the form of a Y, with arms about 50 mm. long, and with a silverv 
sheen suggesting the mineral (Gumbelite ? ), which so commonly replaces 
the graptolite skeleton. There are, however, no traces of any thecae to 
be seen. Portions of the huge Clonograptus magnificus (Pritchard) are 
frequently preserved in this manner, no thecae showing, and it is with 
a fragment of this species that the present specimen may be compared. If 
this tentative determination be correct, then the age of the rocks may be 
Lower Bendigonian, or else Lancefieldian, for the species occurs in both 
series. 
It is perhaps not generally realized that our ideas of the age of the old 
rocks about Ballarat, and to the westward, are mere guesswork, for we 
have had no fossils. The present specimen then, though inconclusive, 
raises hopes that fossils mav vet be found. 
From Howqua River. Great Rand Mine , near Mount Buller . 
Delatite. Collected by Mr. A. M. Howitt. 
Monograptus sp.; No. 1450. 
The fragment is very obscure, but shows the Silurian age of the rock. 
From Myrtleford . 10 chains N.E. of Allotment 2, Parish of Myrtleford. 
Nos. 1451-1458. Collected by Mr. J. Easton. 
None of the specimens are even generically identifiable, but consist of 
small straight fragments, with one exception. This (No. 1457) appears to 
show two branches at right angles with each other, as they spring from 
the sicula. It has straight-sided thecas, and might be referred to several 
genera. The thecae of the remaining specimens are of two kinds, cylin¬ 
drical and slightlv expanding; features, one or other of which are shown 
on about seven specimens. 
