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PROCEEDINGS Oi' THE GEOLOGICAL SOCIETY. [vol. lxxii, 



liegions, and discussed our present knowledge of the Devonian 

 fish-fauna of the Southern Hemisphere. So far as is known, there 

 are no strange elements in this fauna, and the remains discovered 

 closely resemble those met with in the Northern Hemisphere. Even 

 the rocks are very similar to those containing the corresponding 

 fossils in the Northern Hemisphere. There is, as yet. no satisfactory 

 evidence of the basal Devonian fish-fauna such as occurs in the 

 Downtonian of England and Scotland ; but both Lower and Upper 

 Devonian forms occur in Victoria and New South Wales (Australia). 

 A Coccostean related to Phlyctcenaspisivom Gippsland (Victoria), 

 and another related to Macropetal ichthys from Goodra Vale (New 

 South Wales), may be regarded as Lower or Middle Devonian ; 

 typical plates of Bothriolepis from the Harvey Kange (New South 

 Wales) indicate an Upper Devonian fauna. The fish-remains 

 obtained by the ' Discovery ' Expedition in Granite Harbour 

 (Antarctica) comprise Bothriolepis, another Ostracoderm related 

 to Byssacanthus, Acanthodian scales, Selachian dermal tubercles, 

 a Coccostean, scales of Osteolepidse, and scales of a very small 

 Paheoniscid. They must be regarded as Upper Devonian. 



Dr. Smith Woodward expressed his indebtedness to the Govern- 

 ment Geologist of New South Wales for the loan of the Australian 

 specimens exhibited. 



Mr. P. Bullen Newton exhibited some so-called Orbitoidal 

 Limestones from Dutch New Guinea, the microscopical 

 structures of which were shown by lantern-illustrations. The 

 specimens were collected by Dr. A. F. K. Wollaston during his 

 expedition to that country in 1912-13, on the snow-line of Mount 

 Carstensz at a height of 14,200 feet, this mountain forming the 

 highest elevation of New Guinea, with an altitude of about 

 ] 6,000 feet. The foraminiferal organisms determined in this 

 material included five species of Lepiclocyclina (sumatrensis, 

 martini, neodispansa, murrayana, and cf. insnlce-natalis) , Amplii- 

 stegina, Garpenteria, Cycloclypeus (cf. orbitoidcus), etc. ; the 

 marine alga or nullipore, Lithothamnium, was also largely repre- 

 sented. This assemblage compares favourably with that which 

 characterizes rocks of similar age in other Pacific regions, such as 

 Christmas Island (Indian Ocean), Formosa, the Philippines, Borneo, 

 Celebes, Sumatra, Nias, Timor, and Australia, besides indicating a 

 Miocene origin. It was pointed out that the genus Orbitoides of 

 A. d'Orbigny had been restricted by Schlumberger (relying on the 

 researches of Giimbel, Verbeek, and others) to species having 

 rhomboidal equatorial chambers and belonging only to Cretaceous 

 times ; species furnished with rectangular chambers, and recognized 

 as Orthopliraymina of Munier-Chalmas, were limited to the Eocene 

 and Oligocene formations ; while Gumbel's genus Lepidocyclina , 

 with rounded or hexagonal chambers, included species of Miocene 

 and later age. As the result of a study of species from Borneo and 

 the Philippines. Prof. Douville had proposed to divide Lepidocyclina 



