| Reference no. | Description | year | Name used | Page |
|---|---|---|---|---|
| 821 | Springsteen, F.J. and F.M. Leobrera 1986 Shells of the Philippines. Carfel Seashell Museum. Metro Manila, Philippines. 377 p. | 1986 | Delonovolva formosa | 96 |
| 833 | Ruppert, E.E., R.S. Fox and R.D. Barnes 2004 Invertebrate Zoology. A functional evolutionary approach. 7th Ed. Brooks/Cole, Thomson Learning learning, Inc. 990 p. | 2004 | Cuspivolva formosa | --> |
| 86518 | Poppe, G.T. 2008 Philippine marine mollusks. Vol. 1 (Gastropoda - Part 1). ConchBooks. 759 p. | 2008 | Delonovolva formosa | 103, 450-453, pl 170-171 |
| 3477 | MarineSpecies.org 2050 MarineSpecies.org. http://www.marinespecies.org/index.php | 2050 | Primovula formosa | --> |