| Ref Utama. | Márquez, M.R., 1990 |
| Penampilan mengacu pada |
| Organ khusus | |
| Penampilan berbeda | |
| Warna yang berbeda | |
| Keterangan |
| Fitur yang mencolok | |
| Bentuk tubuh lateral | |
| Penampang melintang | |
| Profil kepala bagian dorsal | |
| Jenis mata | |
| Jenis mulut/moncong | |
| Posisi mulut | |
| diagnosa | Adult: body flat, and carapace smooth, nearly elliptical with upturned margins. In subadults: carapace rim indented from middle to the back. Head: medium-sized, subtriangular, flat on top. Snout: longer and nearly equal to orbit. Scutes: ventrally consists of 6 pairs of main scutes, one intergular scute, a pair of postanal scutes and 4 poreless inframarginal scutes in each bridge with only one axillary scale in each bridge. Single visible claw in each flipper. Color: adults dorsally dull olive-grey with pale brownish yellow tones marginally; neck and head pale tone. Plastron ventrally are creamy white. Young individuals: brightly colored. Hatchlings: carapace scutes form a dark grey reticulate pattern; each scute are pale olive green; carapace rim and flippers are cream-colored band. Ventrally cream-white, except central part of each flipper which is bluish-grey diffuse spot. |
| Kemudahan Identifikasi |
| Garis Lateral | Terganggu: No |
| Sisik pada garis lateral | |
| Sisik garis lateral berpori-pori | |
| Timbangan dalam seri lateral | |
| Baris skala di atas garis lateral | |
| Baris skala di bawah garis lateral | |
| Sisik di sekitar tangkai ekor | |
| Barbel | |
| Celah insang (hanya hiu/pari) | |
| Pengangkat insang | |
| pada tungkai bawah | |
| pada tungkai atas | |
| Keseluruhan (total) | |
| vertebrata, bertulang belakang | |
| preanal | |
| Keseluruhan (total) |
| Atribut | |
| Nomor sirip | |
| No. | Punggung |
| Ventral | |
| Total duri | |
| Total sinar lembut | |
| Sirip adiposa |
| Atribut |
| Nomor sirip | |
| Total duri | |
| Total sinar lembut |
| Dada | Atribut |
| Duri | |
| Sinar lembut | |
| Panggul | Atribut |
| Posisi | |
| Duri | |
| Sinar lembut |