• Caption: Common Name: snail larva, Magnification: 15.3x, Notes: the scientific term for this creature is a marine gastropod veliger. marine snail is a nonscientific term refering to a broad group including nudibranchs and pteropods, Scientist's Notes: Cannot id at this stage., Location: Beneath the Golden Gate Bridge, San Francisco, California, Latitude: 37.82239565, Longitude: -122.48434066