By his neesings a light doth shine. "Neesings" is old English for "sneezings." According to Aristotle, the crocodile is in the habit of sneezing, but I do not find this fact noted by modern writers Boehart asserts it very positively, but he does not profess to speak from his own knowledge.
And his eyes are like the eyelids of the morning. This probably does not mean more than that his eyes flash with light upon occasion, which is no doubt true, though the eyes, being small, have not generally attracted very much attention.