1899] AMI BELLINURUS GRAND,«VUS. 207 



bp:llinurus grand^vus, a new species of 

 pal.-eozoic limuloid crustacean recently 

 described by prof. t. r.jones and dr. henry 

 woodward, from the eo-carboniferous of 

 riversdale, nova scotia. 



By H. M. Ami, M.A., F.G.S. 



In 1897, while carrying on a palaeontological survey of various 

 o-eolop'ical horizons in Nova Scotia with a view of ascertaining the 

 taxonomic relations of the various zones in the formations 

 characterizing the Carboniferous system of that province, I was 

 fortunate enough to find " two tiny specimens of Palaeozoic 

 Limuloid Crustaceans." With Dr. G. M. Dawson's permission, 

 these were forwarded to Dr. Henry Woodward, Keeper of the 

 British Museum, South Kensington, the eminent authority on 

 Crustacea, and in a paper recently published* by him conjointly 

 with my friend Prof. T. Rupert Jones, F.R.S., &c., the specimens 

 are described under the name BeUinunis grandcvvus, Jones & 

 Woodward. 



This crustacean was obtained from the Riversdale formation, 

 in the greenish grey and rusty shales of the sixth cutting east of 

 Riversdale, Colchester County, Nova Scotia, along the Inter- 

 colonial Railway of Canada. This is the third cutting east of 

 Calvarv Brook, which discharges its waters into the Black River 

 branch of the Salmon River. The geological position of this new 

 form is best indicated by the following note on the order of super- 

 position of the strata in the neighbourhood of Riversdale station, 

 in descending order as observed by the writer and as has been 

 clearly pointed out by Mr. Hugh Fletcher, B.A., of the Geological 

 Survey of Canada in various reports :** 

 I. Windsor formation, with marine limestones with gypsum and 



marls holding abundance of iron pyrites. 



*" Contributions to Fossil Crustacea," by Professor T. Rupert Jones, 

 F.R.S., F.G.S. , and Henry Woodward, LL.D., F.R.S., F.G.S., Geol. Mag., 

 Doc. IV, Vol. VI, No. 423, p. 388, September, 1899. Plate XV, fig-s, 2 and 3. 



** See Ann, Rep. Geol. & Nat. His. Suiv.. Can. Vol. II, p. 64P, Mon- 

 treal, 1887. 



