| Locations | Zonocostites ramonae | Monoporites annulatus | Environment |
| L1-Iddo | 2 | - | Marginal Marine |
| L2-Iganmu | 6 | - | |
| L3-Oko Baba | 16 | 1 | |
| L4-Adekunle | 4 | - | |
| L5-Yaba | 28 | 11 | |
| L6-UNILAG | 5 | 1 | |
| L7-Igbobi | 21 | 4 | |
| L8-Oworo | 23 | 3 | |
| L9-Alapere | 12 | 1 | |
| L10-Ajegunle | 4 | - | |
| L11-Oruba | 22 | 2 | |
| L12-Majidu | 5 | 1 | |
| L13-Ikorodu | 26 | 1 | |
| L14-MidLagoon | 24 | - | Marginal Marine |
| L15-MidLagoon | 9 | 3 | |
| L16-Ibese | 110 | - | Marginal Marine |
| L17-Ilemera | 51 | - | |
| L18-Baiyeku | 23 | - | |
| L19-Osbourne | 11 | - | |
| L20-Moba | 13 | - |