PLATE XIX. 



PAGE 



Figs. 1-3. Hercoglossa tuomeyi n. sp. 122 



1. Peripheral vie^v of specimen illustrated on Plate XVII. Popes 



Creek. X % 



2. Specimen showing- fragment of shell substance from near iieriphery. 



Popes Creek. X % 



3. Specimen showing a frag'ment of shell from near the umbilicus. 



Clifton Beach. 



371 



