ON AN UNNAMED SPECIES OF PECTEN. 
EXPLANATION OF PLATE V. 
Fig. 1.—Pecten praecursor, sp. nov. Holotype. Spring Creek, 
Torquay. (Dennant Coll.) Janjukian. 
Fig. 2.—P. praecursor, sp. nov. Paratype. Waurn Ponds, near 
Geelong. (Coll. Geol. Surv., Victoria.) Janjukian. 
Fig. 3.—P. praecursor, sp. nov. Paratype. Curlewis. (Coll. Geol. 
Surv., Victoria. Ad. 12.) Barwonian. 
The figures are enlarged 7-25ths more than actual size 
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