444 K. ETHERIDGE ON A TERTIARY HEMIPATAGRTS. 



29. Description of a new Species of the Genus Hemipatagtts, 



Desoe, from the Teetiaey Rocks of Victoria, Australia, 



ivitli Notes on some peeyiously described Species from South 



Australia. By Eobert Etheridge, Jun., Esq., E.G.S. (Read 



March 24, 1875.) 



[Plate XXI] 



The Echinodermata of the Tertiary rocks of Southern Australia 

 have not, as far as I am aware, yet received any systematic atten- 

 tion at the hands of palaeontologists, although several interesting 

 notices have from time to time appeared. 



The Rev. Julian E. T. "Woods figured*, but did not describe, 

 a handsome Echinoderm from the Mount- Gambier beds of South 

 Australia, under the name of Spatangus Forbesii. Mr. Woods 

 pointed out that his species was identical with the $. Hofmanni, 

 found at the Murray Cliffs by Captain Sturtf , and so identified by the 

 latter, although it is not the S. Hofmanni of GoldfussJ. In an inter- 

 esting paper on some South- Australian Tertiary Corals§, Prof. P. 

 M. Duncan described JS. Forbesii, and referred it to Desor's genus 

 Hemipatagus. He there notices its close similarity to H. (Spatan- 

 gus) Hofmanni, Goldf., and its chief point of difference from the 

 latter, in the presence of non-crenulated tubercles, which have a 

 tendency to touch the scrobicular circle. 



Dr. G. C. Laube|| has since redescribed H. Forbesii, W. and D., in 

 addition to several other new forms from the Murray Cliffs, South 

 Australia, apparently without having seen Prof. Duncan's paper. 



Prof. M'Coy has named^ several Spatangi from Yictorian Tertiary 

 rocks, which will be found in the accompanying synopsis I have 

 appended below. 



The form now brought under the notice of the Society, although 

 closely allied toll. Forbesii, W". & D., at first sight, still possesses 

 certain characters which have induced me to assign to it a new 

 specific name, in the belief that it is undescribed. I obtained the 

 specimens from a series of very ferruginous beds at Mordialloc, on the 

 east shore of Port-Phillip Bay, Yictoria. As a slight mark of ap- 

 preciation of the efforts made by the Rev. Mr. Woods towards the 

 advancement of palseontological and geological science in Australia, 

 I would beg to propose that the species in question should be called. 

 Hemipatagus Woodsii. 



Amongst a small collection of South- Australian fossils presented 

 to the Museum of Practical Geology by Mr. H. E. Blanford, I was 

 fortunate enough to meet with three of the new species described 



* Geological Obs. S. Australia, 1862, pp. 75, 83. 

 t Two Expeditions Int. S. Australia, ii. p. 254, pi. 3. fig. 10. 

 I Petrefacta Germanise, i. p. 152, t. 47. fig. 3, a, b, c. 

 § Annals Nat. Hist. 1864, xiv. p. 165, pi. 6. fig. 3, a, b, c, d. 

 || Sitz. d. K. Akad. d. Wissen. Wien, B. lix. Ab. 1, 1869, p. 193. 

 ■ff Smyth's Progress Report, Geol. Mining Surv. Victoria, 1874, p. 36. 



