Sirens Call ezine is looking for short stories for issue #15 - Crypto, "the search for creatures whose existence has not been scientifically proven...yet". They need flash of 300 to 1000 words, shorts of 1000 to 2500 words, poetry, and drabbles (100 words exactly). They also accept reprints. This is a non-paying market. You can find the details here.
Their anthology "Out of Phase: Tales of Sci-Fi Horror" is still open for subs until May 31. Payment here is royalties. Just scroll down the page for the guidelines.