Prepare pasta according to package directions, dissolving the curry powder in the boiling water before adding the pasta. When the pasta is cooked but still firm, drain and cool under cold running water. Drain again thoroughly and place in a salad bowl. Add the shrimp, salmon, chickpeas and raisins.
In a small bowl stir together the chives, lemon juice, salt and pepper to taste. Add oil and stir vigorously until blended. Pour over the salad; toss well and serve on individual salad plates lined with butter lettuce mix.