631 



NOTES AND EXHIBITS. 



Mr. D. G. Stead exhibited two deformed Malekiilan skulls from 

 the southern end of the island, one of them with a persistent 

 occipital suture; sections of wood showing the junction of host 

 {Casuarina or Eucalyptus) and Mistletoe {Loranthus); a strikingly- 

 marked Crab, Caiyilius maculatus, from Tanna, New Hebrides; 

 specimens of two species of Orthoptera common about Sydney; 

 the Megalops-stage of a Crab; and examples of the beautiful 

 macrurous Crustacean Nhynchocinetes typtis. 



Mr. Hedley exhibited a specimen of the shell usually known 

 as Ranella leucostoma, Lamarck; and he explained that this well 

 known name must be abandoned under the following circum- 

 stances. It was published in August, 1822, by Lamarck in the 

 " Animaux sans Yertebres " (1st Ed., vii. pt. 1, p. 150). In the 

 second edition of this work (Vol. ix., p. 542), Deshayes cites an 

 illustration of this species by Perry. On consulting Perry's work, 

 "Conchology, or the Natural History of Shells" (1811), we find 

 Ranella leucostoma unmistakably figured on PL 14, fig. 2, and 

 described as from New Holland and Van Dieman's Land, under 

 the name of Biplex australasia. Perry's genus Biplex must, 

 however, yield to that of Gyrineum of Link (1807). Hence 

 Gyrineutn australasia, Perry, should be the name adopted for 

 the local species. On behalf of Mr. R. L. Cherry he exhibited 

 also specimens of Cortus ca,pita7ieus, L., collected on a beach 

 immediately north of the entrance to Lake Macquarie, and 

 Vexilla vexilhd/i, L., found three miles south of Lake Macquarie 

 Heads. Mr. Cherry is the first to bring to notice either of these 

 tropical forms in New South Wales. 



Mr. Froggatt exhibited very fine samples of lac recently col- 

 lected by him near Bundaberg, Q. The lac is formed abundantly 

 on Melaleuca leucadendron b}^ an undetermined species of 

 Tachardia, specimens of which were also shown. 



