274 
Diplograptus carnei (T. S. Hall). 
Plate xxxiv., Fig. 13. 
This species is represented by a large number of specimens which have 
been compared with specimens from the type locality in New South Wales. 
Climacograptus mensoris , n. sp. 
Plate xxxiv., Fig. 5. 
Polypary parallel sided, and abruptly pointed towards the base. 
Length 15 mm., breadth 1.5 mm. Thecae 10 in 1 cm. Virgula visible in 
the body of the polypary, free for 10 mm., slightly expanding towards the 
anti-sicular end'. One specimen (No. 671) shows a very short virgella. 
[Type No. 674.] 
Loc. Longitude 146 deg. 13 min. 45 sec. E., latitude 37 deg. 40 min. 
30 sec. S., 2 miles N.W. of Mount Easton; collected bv W. Baragwanath, 
jun. [6 examples.] 
Retiolites caudatus (T. S. Hall). 
One specimen fairly well preserved, and agreeing with those from 
Stockyard Creek, New South Wales, the type locality. 
Summary. 
Five species are identified. Of these, two, Diplogr. carnei and Retiolites 
caudatus , occur at Stockyard Creek in New South Wales, near the Croajin- 
goLong border. These point to a fairly close agreement of horizon, especi¬ 
ally as R. caudatus has, as yet, not been found elsewhere. At present 
we cannot speak more definitely. CUmacogr. mensoris is new and striking 
in character. I have not seen it elsewhere. 
The two extra Australian species are Leptogr. piaccidus and Dicello- 
graptus complanatus var. ornatus. These are not associated in Scot¬ 
land, but belong to different horizons. The former species, I feel sure, is 
correctly determined, as will be seen below in dealing with the Mount 
Easton collection, but of the Dicellograptus I cannot speak with the same 
confidence. 
The bed's containing the fossils are Upper Ordovician. 
University, September 28, 1905. 
From three-quarters of a mile north-west of Mount Easton. 
(Nos. 687-790; marked F23. Collected by Mr. Wm. Baragwanath, jun.) 
The following is a list of the species determined : — 
Leptograptus piaccidus (J. Hall), Nos. 712 (fig.), 724, 726, 728, 732, 
778. 
Dicello graptus elegans (Carruthers), Nos. 689, 691, 701, 702, 713 (fig-), 
7iU 7*5> 7i6, 717, 718, 719, 720, 721, 722, 723, 723, 727, 729, 730, 
73 U 734 , 735 > 74 U 763, 7 ^ 5 , 7^8, 774. 
Dicellograptus, sp., 701, 715, 731, 760, 763, 765. 
Dicranograptus ramosus (J. Hall), var. semispinifer var. nov., Nos. 
693, 707, 708, 709 (type), 710, 7 iU 755 , 757 , 770 , 779 - 
Dicrano graptus Mans, T. S. Hall, Nos. 704 (?), 705, 717, 737 (?), 787. 
Dicrano graptus nicholsoni, Hopkinson, Nos. 766, 768. 
Dicrano graptus, sp., No. 739. 
Diplograptus ingens, n. sp., Nos. 687, 688, 689, 691 (?), 697, 723, 
725 (?), 734 , 738 , 739 , 740, 74 i (type), 742, 743 , 745 ( ? ), 74 * 5 , 747 , 748. 
760, 770, 780. 
