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| Country | Year | Collector | Identifier | Catalog No. | Depth (m) | Locality | Source | ||
| 1913 | LANG-CHAPIN EXP., H. LANG, J.P. CHAPIN | B.A. BROWN | AMNH 215645 | ITURI RIVER, AVAKUBI | Portal: FB. Source: AMNH | ||||
| Nigeria | no year | Powell C.B. | Teugels G. | P 92078.002592078.0035 | Orashi River at Odieke | Portal: FB. Source: P | |||
| Nigeria | no year | Powell C.B. | Teugels G. | P 92078.002092078.0024 | Isemu Lake (Okoso/Powei System) | Portal: FB. Source: P | |||
| Nigeria | no year | Powell C.B. | Teugels G. | P 92072.006192072.0084 | Powei Creek | Portal: FB. Source: P | |||
| Nigeria | no year | Powell C.B. | Teugels G. | P 92067.011892067.0120 | Okoso Creek, 1-2 km upstream from the bridge | Portal: FB. Source: P | |||
| Nigeria | no year | Powell C.B. | Teugels G. | P 91067.005391067.0058 | Niger river, sandy floodplain channel (Okoso creek) | Portal: FB. Source: P | |||