👉 Sulciform is a type of fish that is characterized by having two pairs of large, elongated, and white sponges or scales located on its back. These are known as the "scales" because they cover the entire surface of the fish's body, including its head, fins, and tail. The sponges or scales can be found in different sizes and shapes, ranging from small round to large oval. Scales are an essential part of the fish's anatomy and