Slices of star fruit hold crab, papaya, and avocado salad.
Shred crab meat, discarding any shell or cartilage; place in a medium bowl. Add avocado, papaya, lime juice, cilantro, jalapeno, salt, and black pepper; toss. Adjust seasoning.
Spoon a heaping teaspoon of crab mixture over each carambola slice. Arrange on a serving platter, and serve immediately.