| Ref Utama. | Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984 |
| Penampilan mengacu pada | |
| Bones in OsteoBase |
| Organ khusus | |
| Penampilan berbeda | |
| Warna yang berbeda | |
| Keterangan |
| Fitur yang mencolok | none |
| Bentuk tubuh lateral (shape guide) | elongated |
| Penampang melintang | circular |
| Profil kepala bagian dorsal | clearly convex |
| Jenis mata | more or less normal |
| Jenis mulut/moncong | more or less normal |
| Posisi mulut | sub-terminal/inferior |
| Jenis timbangan | |
| diagnosa |
Body elongated, anteriorly depressed, posteriorly compressed. Four pairs of mouth barbels present. No scales on body. Pectoral and dorsal fins enlarged and spinous. Posterior margin of caudal fin deeply notched. |
| 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 | 8 |
| Celah insang (hanya hiu/pari) | |
| Pengangkat insang | |
| pada tungkai bawah | |
| pada tungkai atas | |
| Keseluruhan (total) | |
| vertebrata, bertulang belakang | |
| preanal | |
| Keseluruhan (total) |
| Atribut | no striking attributes |
| Nomor sirip | 1 |
| No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Total duri | 1 - 1 |
| Total sinar lembut | 5 - 7 |
| Sirip adiposa | present |
| Atribut | forked; more or less normal |
| Nomor sirip | 1 |
| Total duri | 0 - 0 |
| Total sinar lembut | 18 - 20 |
| Dada | Atribut more or less normal |
| Duri | |
| Sinar lembut | |
| Panggul | Atribut |
| Posisi abdominal behind origin of D1 | |
| Duri | |
| Sinar lembut |