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| Author(s) [A-Z] | Year [ascending] | Title | Type | Journal | Citation |
| Welch, R. | 1903 | Poclets of land shells, Bann mouth dunes, Port Stewart | Journal | J. Conch. (Lond.) | Details... |
| Welch, R.C. | 1986 | Coleoptera from Northern Ireland recorded during the Forest Entomology Group Meeting, 30 June- 4 July 1986 | Report | | Details... |
| Welch, R.J. | 1895 | Wild flowers in the Glynns of Antrim in mid-winter | Journal | Ir. Nat. | Details... |
| Welch, R.J. | 1895 | Exposed Lias at Whitepark Bay, North Antrim | Journal | Ir. Nat. | Details... |
| Welch, R.J. | 1896 | Helix arbustorum in Co. Derry | Journal | Ir. Nat. | Details... |
| Welch, R.J. | 1898 | Hydrobia jenkinsi Smith in Co. Down. | Journal | Ir. Nat. | Details... |
| Welch, R.J. | 1899 | Large colony of Vertigo antivertigo Drap. in Co. Down | Journal | J. Conch. (Lond.) | Details... |
| Welch, R.J. | 1901 | Pisolitic iron ore in Lough Neagh | Journal | Ir. Nat. | Details... |
| Welch, R.J. | 1902 | Mollusca from shell-marl, Clonbrock, Co. Galway and Portaferry, Co. Down | Journal | Ir. Nat. | Details... |
| Welch, R.J. | 1902 | The Gobbins cliffs and caves, Co. Antrim | Journal | Ir. Nat. | Details... |
| Welch, R.J. | 1904 | Astrorhiza on the Antrim coast | Journal | Ir. Nat. | Details... |
| Welch, R.J. | 1904 | Greensand section at Whitehead | Journal | Ir. Nat. | Details... |
| Welch, R.J. | 1904 | Coast erosion in North Antrim | Journal | Ir. Nat. | Details... |
| Welch, R.J. | 1904 | Rare woodlice from Co. Dublin and Co. Down | Journal | Ir. Nat. | Details... |
| Welch, R.J. | 1905 | Greensand section at Whitehead | Journal | Ir. Nat. | Details... |
| Welch, R.J. | 1906 | Buccinum and Patella Kjokken-modding at Cranfield, Co. Down | Journal | Ir. Nat. | Details... |
| Welch, R.J. | 1907 | Helix hortensis in Co. Antrim | Journal | Ir. Nat. | Details... |
| Welch, R.J. | 1908 | Exotic land Mollusca at Belfast | Journal | Ir. Nat. | Details... |
| Welch, R.J. | 1908 | On dopplerite from Sloggan Bog, Co. Antrim | Journal | Ir. Nat. | Details... |
| Welch, R.J. | 1909 | Helix hortensis in Co. Down | Journal | Ir. Nat. | Details... |
3701 references found.