Existence of Cavibrian Fauna zn Victoria. 63 



the surface. A tentative opinion, however, can only be passed 

 as to the identity of this little fossil ; but on passing in review 

 the lower forms of Brachiopod life, one is struck with the 

 resemblance, in a general sense, with two genera described by Dr. 

 Waagen from the Cambrian series of the Salt Range, India, viz. — 

 Neobolus* of the family Obolidse, and Lakhmina, Oehlert ;t a 

 member of the Trimerellidre. No trace of internal structure 

 being preserved in our fossil beyond a septum, as previously 

 stated, it is impossible to decide satisfactorily to which of the 

 two it is most nearly allied. Viewed exteriorly, the resemblance 

 to Lakhmina iinguloides, Waagen, | is very sti'ong, particularly 

 in the form and sculpture. It is, therefore, quite possible that it 

 may be referable to this curious genus. At any rate, it is a form 

 entirely new to Australian Paljeontology, and I am much 

 indebted to my assistant, Mr. W. 8. Dun, for the trouble he has 

 taken in unravelling its possible affinity. 



The drawings have been executed with care and exactitude 

 by Mr. Edgar R. Waite, to whom I also beg to express my 

 thanks. 



DESCRIPTION OF PLATE. 



Dinesus ida (Eth. til.). 



Fig. 1. — Glabella and tixed cheeks, with circumscribed lobes, 

 frontal border, neck-ring, and ocular ridge on the 

 left fixed cheek. 



Fig. 2. — A smaller but similar specimen. 



Fig. 3. — Glabella and tixed cheeks, with the anterior circum- 

 scribed lobes, and the left ocular lobe. 



Fig. 4. — Specimen similar to Fig. 1, somewhat obliquely pressed, 

 showing distinctly the left eye lobe and ocular ridge. 



Fig. 5. — Pygidium of five coalesced segments, but wanting the 

 posterior apical mai'gin. The limb is produced into 

 five spines. 



* Pal. Indica (Salt Range Fossils), 1885, I., Pt. 4, fas. 5, p. 756. 



t Waagen, loc. cit., 1889, iv., Pt. I., p. 81; 1891, iv., Pt. 2, t. 2, f. (= Davidsonella, 

 Waagen, non M. Chalmas, ibid, 1885, I., Pt. IV., fas. 5, p. 761. 



; Loc. cit. 1891, iv., Pt. II., t. 2, f. 3 and 4 ( = Davidsonella Iinguloides, Waagen, ibid, 1885, 

 I., Pt. IV., fas. 5, p. 764, t. 85, f. 3-6. 



