388 Trof. T. Rupert Jones and Dr. H. Woodicard — 



the Eoyal Society, and the British Museum, with other scientifio 

 institutions, should proceed to carry out these necessary investigations. 

 These problems are not extraneous to the explorations which may 

 be carried out by an Antarctic expedition, and I think the new 

 discoveries which I now communicate to the Geological Magazine 

 may urge on the dispatch of such expeditions as I propose. If these 

 expeditions be made, how many changes may be produced in actual 

 and general ideas on the age of the South American fossiliferous- 

 strata, on the disappearance of the lost southern lands, and on the 

 affinities of extinct faunas so distant in time and space as those of 

 South America and Australia. 



11. CONTEIBUTIONS TO FoSSIL CrUSTACEA. 



By Professor T. Eupert Jones, F.R.S., F.G.S., and Hexe-y "Woodward,, 

 LL.D., F.E.S., F.G.S. 



(PLATE XV.) 



THE following notes are devoted to a small series of Crustacea,, 

 not dii'ectly related to one another, but which have been 

 awaiting a favourable moment for description. 



1. Bellinurus geand^vus, Jones & Woodw. (PI, XV, Figs. 2. 

 and 3 ; X 6 diam.) 

 Through the kindness of our friend Dr. Henry M. Ami, M.A., 

 F.G.S., Assistant-Paleeontologist to the Geological Survey of Canada, 

 and with the permission of the Directoi-, Dr. G. M. Dawson, C.M.G., 

 F.E.S., we received, a year ago, two tiny specimens of Palgeozoio 

 Limuloid Crustaceans, referable to the genus Bellinurus of Kiinig. 

 Dr. Ami writes : — " The precise locality of these protolimuloid 

 Crustaceans is the 6th cutting east of Riversdale Station on the 

 Intercolonial Eailway of Canada, in the county of Colchester, Nova 

 Scotia. There are besides this Crustacean (which you are at liberty 

 to describe if you wish) a number of plant- and animal-remains 

 associated in the same beds, viz. : Aster ophyllites acicularis ; Sphen- 

 opteris, sp.; Gyclopteris (Aneimites), sp. ; Ostracoda ; Anthracomya 

 ohtenta, etc., etc. A species of Leaia, closely related to Leaia 

 tricarinata, also occurs here, and fern-pinnules allied to Neuropteris, 

 besides Calamites, Cordaites, etc. The shales from which these 

 Crustaceans were obtained are overlain conformably by sandstones 

 and red shales of great thickness, and these in turn are unconformably 

 capped by Lower Carboniferous Marine Limestones. Thus, in 

 descending order the strata are : — 



1. Lower Carboniferous Marine Limestones. 

 (Unconformity.) 



2. Red rocks of Union and Riversdale Series. 



3. Black, grey, and glossy shales of Riversdale and vicinity. 

 (Unconformity.)" 



1. Turning to the specimens themselves, the label states " the 

 first specimen found by Mr. Ami " (which is represented on PI. XV, 

 Fig. 3, enlarged six diam.) is said to be from the " 3rd cutting 



