101Leafy researched the games.
Monoblos

A large-horned wyvern found in desert zones. Their giant horn makes their attacks very dangerous. While they have no breath attack, their ear-splitting roar is the bane of hunters.
Monster List No. 24
Carving
Number of carvings: 4 (2 per area) (BradyGames, Monster Hunter Official Strategy Guide, 2004, p. 87). The guide (p. 78) splits the carves by Quest Level: early quests are levels 1 to 3, latter quests 4 to 6.
Early quests, Body
| Item | Chance |
|---|---|
| Monoblos Spine | 40% |
| Monoblos Shell | 39% |
| Blos Fang | 20% |
| Monoblos Heart | 1% |
Early quests, Tail
| Item | Chance |
|---|---|
| Monoblos Shell | 15% |
| Monoblos Shell | 30% |
| Monoblos Shell | 30% |
| Lg Monster Bone | 15% |
| Lg Monster Bone | 5% |
| Monoblos Shell | 5% |
Latter quests, Body
| Item | Chance |
|---|---|
| Monoblos Spine | 40% |
| Monoblos Shell | 39% |
| Blos Fang | 20% |
| Monoblos Heart | 1% |
Latter quests, Tail
| Item | Chance |
|---|---|
| Monoblos Shell | 15% |
| Monoblos Shell | 30% |
| Monoblos Shell | 30% |
| Lg Monster Bone | 15% |
| Lg Monster Bone | 5% |
| Monoblos Shell | 5% |