210 
locality, and hitherto has been known only from near Diggers’ Rest. 
There is a chance that with several creeks cutting across the strike of 
the rocks differences in the fauna may be traced, but it is not much use 
collecting promiscuously over miles of country. 
[Report sent in 2j.11.08.] 
Accommodation Creek. 
From Accommodation Creek Copper Mine, East Gippsland. Col¬ 
lected by Mr. E. A. Tonner.—Nos. 4418-4422. 
Dicranograptus Jiians , T. S. H.—No. 4422. 
Climaco graptus caudatus , Lap.—Nos. 4418, 4420. 
Crypto graptus tricornis , Carr.—No. 4421. 
Diplograptus calcaratus. Lap.—No. 4421. 
This specimen is well preserved, and has four basal spines. 
The age of the rocks is Upper Ordovician. 
r Report sent in 22.12.08.] 
Descriptions of Species. 
Tricliograptus fergusoni , n. sp. 
PI. XXVI., Figs. I, 2. 
Hydrosome slender, bilaterally symmetrical, consisting of two main 
branches inclined at about 150 deg. Each of these gives off two or 
three secondary branches on the same side of the branch. These secondary 
branches appear to spring from the thecal aperture. 
Sicula long and narrow with a very oblique aperture. It is 1.5 mm. 
long, and about 0.3 mm. wide. Thecse 6 or 7 in 10 mm., inclined at 
about 15 deg., and scarcely, if at all, overlapping, slightly expanding, 
the apertural magin about normal to the axis of the branch. 
The species is closely allied to T . crinitus , Tornquist*, but differs in 
the number of thecse and their angle of inclination. 
I. have two specimens before me. one preserved in counterpart. The 
species is associated with Tet. fruticosus (four-armed variety), T. bryo- 
noides , and some indistinct tangled specimens with similar thecse, but 
different mode of branching. Nos. 4615, 4650, 4642, from the Lower 
Bendigonian, Rocky Lead. 
The species is named after Mr. W. H. Ferguson, of the Geological 
Survey, whose skilled collecting has added so much to the knowledge 
of Victorian graptolites. 
Dichograptus octobracbiatus , T. Hall. 
PI. XXVI., Fig. 3. 
An imperfect specimen from the Bendigonian of Davlesford (4854) 
shows the central disc. 
Clonograptus abnormis , J. Hall. 
PI. XXVI., Fig. 4. 
(See Can. Org. Rem., Dec. II., 1865, p. 106, PI. 11, Fig. 6.) 
The specimen (4870) agrees closely with Hall’s figure and description. 
Primary branches 4 mm. long, secondary about 1.3 mm. the tertiary 
varying from 2 to 4.5 mm. Thecse, 10 in 1 cm. Bendigonian, Davies 
ford. 
* Lunds Univ. Arsskrift, Bd. 40, Afd. 1, No. 2 (1904), p. 4. 
