Two eyelike organs projecting upward, the pupils clear and watchful.
"The Planet Strappers"
Raymond Zinke Gallun
The creatures were of a livid hue, and had the form of a globe, as large as the bell itself, with a valvular opening on one side which was evidently a mouth, surrounded with a circle of eyelike disks, projecting shafts of self-evolved light into the water.
"The Second Deluge"
Garrett P. Serviss