101Leafy researched the games.
Cephadrome

The alpha monster form of the Cephalos. Larger and armored with black scales, they fit the appearance of a leader perfectly. Their fins hold a paralyzing toxin.
Monster List No. 23
Carving
Number of carvings: 3 (BradyGames, Monster Hunter Official Strategy Guide, 2004, p. 86). The guide (p. 78) splits the carves by Quest Level: early quests are levels 1 to 3, latter quests 4 to 6.
Early quests
| Item | Chance |
|---|---|
| Piscine Liver | 15% |
| Cephalos Scale | 30% |
| Cephalos Fin | 30% |
| Piscine Fang | 15% |
| Cephalos Scale | 8% |
| Cephalos Fin | 2% |
Latter quests
| Item | Chance |
|---|---|
| Cephalos Scale | 15% |
| Cephalos Scale | 30% |
| Cephalos Fin | 30% |
| Cephalos Fin | 15% |
| Piscine Liver | 8% |
| Piscine Fang | 2% |