SILURIAN BIVALVED MOLLUSCA OF _ VICTORIA. 
Measurements.—Leneth, about 25 mm.; height, 10.5 mm. 
Observations.—This form at once reminds one of G. cym- 
beformis, Sow. sp.*, which ranges throughout the Silurian in 
the British Isles. That species, however, is not so conspicuously 
marked with the lines of growth, which in our specimen are 
closely set and strikingly bifurcated. Another form somewhat 
allied, but having more numerous growth striz, and a higher 
shell, is G. consimilis of Billingst from the Silurian of Nova 
Scotia. 
Horizon and Locality—Silurian (Yeringian). In mud- 
stone N. of Lilydale. Presented by the Rev. A. W. Cresswell, 
M.A. [989.] 
Goniophora ef. glaucus, J. Hall sp. Pl. VI., Fig. 81. 
Sanguinolites glaucus, Hall, 1870, Prelim. Notice, Lamell, 
2, p. 38. 
Goniophora glaucus, Hall, 1885, Pal. N. York, Vol. V., 
Pie hy Gamelan, 9.209; Pl XLT, Fig. 16; Pl. XUV. 
Figs. 10-17. 
Observations.—Our specimen is imperfect, but the anterior 
and most characteristic part of the shell is represented. 
The habit of the shell is short. The surface is finely 
striated, and the striz turn up at a steep angle over the um- 
bonal ridge; this latter feature itself indicates a short form. 
The beaks are small and strongly incurved, whilst the umbonal 
ridge is sharp and widely curved. Hall’s specimens came from 
the Hamilton Group of New York State. 
Horizon and Locality—Silurian (Melbournian).—From 
the mudstone of the Yarra Improvement Works, 8. Yarra. 
Presented by Mr. F. P. Spry. [7945.] 
Family Pleurophoride. 
Genus CyPpRICARDINIA, J. Hall, 1859. 
Cypricardinia contexta, Barrande. Plate VI., 82, 83, 84. 
Pterinea ‘? planulata, Salter pars, (non Conrad), 1548, in 
Phillips, Mem. Geol. Surv. Gr. Brit., Vol. IL, Pt. I, p. 368, 
Pl. XXIII, Figs. 2 and-4. 
*Cypricardia cymbweformis, Sow., in Murchison’s Silurian System, Pt. II., 1839, p- 
602, Pl. III., Fig, roa, p. 609, Pl. V., Fig. 6. P. 
+ Pal. Fossils, Geol. Surv. Canada, Vol. II., Pt. I., p. 135, Pl. VIII., Fig. 8 
