424 Reports and Proceedings. 



3. "Appendix to a 'Note on a Modified Form of Dinosaurian 

 Ilium, hitherto reputed Scapula.' " By J. W. Hulke, Esq., F.E.S., 

 F.G.S. 



This paper contained a notice of the pubis of Iguanodon, which 

 proves to be identical with the smaller of the two specimens figured 

 by the author in a former paper (Quart. Journ. Geol. Soc. vol. xxx. 

 pi. xxxii. fig. 1). When inverted, its long slender process is easily 

 identified with that of the pubis of the nearly allied Hypsilophodon, 

 and this slanted downwards and backwards parallel to the ischium, 

 the little process of its posterior surface meeting a corresponding 

 process of the ischium, and converting the upper end of a long 

 narrow obturator space into a foramen. The pubis of Iguanodon 

 contributed largely to the formation of the acetabulum, thus re- 

 sembling that of existing Lacertilia, as also in its possession of a 

 broad ventral extension, probably united with that of the opposite 

 side by a median symphysis. The specimens described in this paper 

 were collected in the Isle of Wight by the Eev. W. Fox. 



4. "Notes on the Palaeozoic Echini." By Walter Keeping, Esq., 

 of the Woodwardian Museum, Cambridge. Communicated by Prof. 

 T. M'Kenny Hughes, F.G.S. 



The author alluded to the interest excited by the discovery of 

 Echinoderms with flexible tests ; and having pointed out the differ- 

 ence between the more modern and the Palaeozoic forms (their plates 

 imbricating in opposite directions), gave a description of the follow- 

 ing forms : — I. Perischodomus. II. Rhcechinus, g. n., sp. B. irregularis 

 (Keeping). III. PalcecMnus (?) intermedins (Keeping). IV. PaIo3- 

 chinus gigas (M'Coy). Y. PalcecMnus splicericus (M'Coy). VI. Ar- 

 chceocidaris TJrii (Fleming). In conclusion, the author proposed 

 a new method of classification for the Echinoidea. He also noticed 

 the existence in the Museum of the Boyal School of Mines of a 

 British fossil which appears to belong to the group of Echinoidea 

 with numerous ranges of ambulacral plates, represented in America 

 by the genera Melonites, Oligoporus, and Lepidesthes. 



5. " On some Fossil Alcyonaria from the Australian Tertiary 

 Deposits." By Prof. P. Martin Duncan, F.E.S., V.P.G.S. 



In a former communication in 1870 the author described some 

 fossil corals from the Tertiary strata near Cape Otway, in the pro- 

 vince of Victoria. In one, which he called the " Upper Coralline 

 bed," the equivalent of the Polyzoan limestone of Woods, he found 

 specimens which he did not then describe, as they were not true 

 corals. Belonging to the Isidina?, and not being of great interest, he 

 retained them until the receipt of some similar specimens from 

 New Zealand, described in the following paper. The Australian 

 forms described by the author were shown to be nearly allied to the 

 recent Isis hippuris and the fossil I. corallina. 



6. " On some Fossil Alcyonaria from the Tertiary Deposits of 

 New Zealand." By Prof. P. Martin Duncan, F.E.S., V.P.G.S. 



The New Zealand fossils referred to in the preceding paper were 

 sent to the author by Capt. F. W. Hutton, F.G.S. ; they were de- 

 rived from the Awawoa Eailway cutting, and were from the upper 



