Dried fish why growth into aliens look like?

We see the products of "eyes", is actually a guitarfish. For a fish is not part of the respiratory tract, nostrils, but purely chemoreceptor opening.

Below the mouth, the mouth is indeed guitarfish. And the products of "shoulder", is the human will form the pectoral fin side incision.
As for the products of "leg", then starting from the tail, with the free part of the spine will be the end of both sides of joint posterior incision pelvic fins formed.

The guitarfish because benthic fish, in the life of the entire ventral surface is smooth. After drying the mouth and pectoral fins, cartilage, muscle in the dry after highlighted, so it and face the same.