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|---|---|---|---|---|
| 89360 | Marshall, B.A. 1981 New records of Conidae (Mollusca: Gastropoda) from the New Zealand region. New Zealand Journal of Zoology 8:493-501. | 1981 | Conus howelli | 495 |
| 122171 | Rockel, D., G. Richard and R.G. Moolenbeek 1995 Deep-water cones (Gastropoda: Conidae) from the New Caledonia region. Pp. 557-594, In Bouchet, P. (ed) Resultats de Campagnes MUSORSTROM. Volume 14. Mem. Mus. Natn. Hist. nat. 167. | 1995 | Conus howelli | --> |
| 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 | Conus howelli | --> |
| 126039 | Paulay, G. 2022 Reproduction of Neogastropoda. Pers. Comm. via email [13/04/2022]. | 2022 | Conus howelli | --> |
| 127697 |
IUCN 2022 The IUCN Red List of Threatened Species. Version 2022-1. |
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| 130435 | IUCN 2025 The IUCN Red List of Threatened Species. 1964 - onwards. https://www.iucnredlist.org/ | 2025 | Conasprella howelli | ver.2025-1 |
| 3477 | MarineSpecies.org 2050 MarineSpecies.org. http://www.marinespecies.org/index.php | 2050 | Conus howelli | --> |