RE:Fish tails or fish tales?
Not that I am a "suchi" expert or anything, but "ama" means sweet and "ebi" means shrimp. "ama ebi" is the sweet shrimp, served raw. Although many love it, I can't eat it... give me a california roll instead! (sushi wimp)
For raw I do like... bluefin tuna, bonito or spanish macks! The bonito I had was seared on a grill just on the outside and garnished with a thin vinegar / soy sauce with green onions chopped finely on it. I love the maguro tuna, and the spanish mack I had was from the '2000 Boneclave.