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| Author(s) [A-Z] | Year [ascending] | Title | Type | Journal | Citation |
| Welch, R.J. | 1925 | Succinea oblonga in Co. Fermanagh | Journal | Ir. Nat. J. | Details... |
| Welch, R.J. | 1926 | New locality for Clausilia laminata Mont., Co. Fermanagh | Journal | Ir. Nat. J. | Details... |
| Welch, R.J. | 1926 | Paludestrina jenkinsi Smith, at Antrim | Journal | Ir. Nat. J. | Details... |
| Welch, R.J. | 1926 | Paludestrina jenkinsi in Lower Lough Erne | Journal | Ir. Nat. J. | Details... |
| Welch, R.J. | 1927 | Paludestrina jenkinsi at Belfast | Journal | Ir. Nat. J. | Details... |
| Welch, R.J. | 1927 | Paludestrina jenkinsi in Lough Neagh | Journal | Ir. Nat. J. | Details... |
| Welch, R.J. | 1928 | The common limpet living above high water mark | Journal | Ir. Nat. J. | Details... |
| Welch, R.J. | 1928 | Clausilia laminata at Castlecaldwell | Journal | Ir. Nat. J. | Details... |
| Welch, R.J. | 1929 | Littorina perforations in indurated chalk | Journal | Ir. Nat. J. | Details... |
| Welch, R.J. | 1930 | Foreign Physa, Ards, County Down | Journal | Ir. Nat. J. | Details... |
| Welch, R.J. | 1930 | Planorbis corneus (L.) at Cushendall | Journal | Ir. Nat. J. | Details... |
| Welch, R.J. | 1931 | Curious habitat for Paludestrina (Hydrobia) jenkinsi | Journal | Ir. Nat. J. | Details... |
| Welch, R.J. | 1931 | Tidal fringe of landshells, Co Wicklow | Journal | Ir. Nat. J. | Details... |
| Welch, R.J. | 1931 | Planorbis corneus in Ulster | Journal | J. Conch. (Lond.) | Details... |
| Welch, R.J. | 1932 | The world's latest pest, Achatina fulica Fer. | Journal | Ir. Nat. J. | Details... |
| Welch, R.J. | 1933 | Acicula (Acme) lineata (Drap.) | Journal | Ir. Nat. J. | Details... |
| Welch, R.J. | 1933 | Planorbis corneus (Linn.) in the River Lagan | Journal | Ir. Nat. J. | Details... |
| Welch, R.J. | 1934 | Revival of an old escallop fishery | Journal | Ir. Nat. J. | Details... |
| Welch, R.J. | 1934 | Mollusks pitting chalk | Journal | Ir. Nat. J. | Details... |
| Welch, R.J. | 1934 | Planorbis corneus (L.) in Co. Watson. | Journal | J. Conch. (Lond.) | Details... |
1505 references found.