Musilová, Z. , Říĉan, O. & Novák, J. 2009. Phylogeny of the Neotropical cichlid fish tribe Cichlasomatini (Teleostei: Cichlidae) based on morphological and molecular data, with the description of a new genus. Journal of Zoological Systematics and Evolutionary Research = Zeitschrift für zoologische Systematik und Evolutionsforschung v. 47 (no. 3): 234-247.
Matallanas, J. 2009. Description of a new genus and species of zoarcid Fish, Bellingshausenia olasoi, from the Bellingshausen Sea (Southern Ocean). Polar Biology.
Aarn & Ivantsoff, W. 2009. Description of a new subfamily, genus and species of a freshwater atherinid, Bleheratherina pierucciae (Pisces: Atherinidae) from New Caledonia. aqua International Journal, 15(1): 13-28.
Last, P. R. & Gledhill, D. C. 2009. A revision of the Australian handfishes (Lophiiformes: Brachionichthyidae), with descriptions of three new genera and nine new species. Zootaxa, 2252: 1-77.
Craig, M. T. & Randall, J. E. 2009. Briggsia hastingsi, a new genus and species of clingfish from Oman. Zootaxa, 2271: 64-68.
Pietsch, T. W., Johnson, J. W. & Arnold, R. J. 2009. A New Genus and Species of the Shallow-Water Anglerfish Family Tetrabrachiidae (Teleostei: Lophiiformes: Antennarioidei) from Australia and Indonesia. Copeia, 2009 (3): 483–493.
Parina, N. V., Belyanina, T. N. & Evseenko, S. A. 2009. Materials to the Revision of the Genus Dolichopteryx and Closely Related Taxa (Ioichthys, Bathylychnops) with the Separation of a New Genus Dolichopteroides and Description of Three New Species (Fam. Opisthoproctidae). Journal of Ichthyology, 49 (10): 839-851.
Lamboj, A. 2009. A new dwarf cichlid genus and species (Teleostei, Cichlidae) from Guinea, West Africa. Zootaxa, 2173: 41-48.
Matallanas, J. 2009. Description of Gosztonyia antarctica, a new genus and species of Zoarcidae (Teleostei: Perciformes) from the Antarctic Ocean. Polar Biology, 32 (1): 15-19.
Prokofiev, A. M. 2009. Problems of the Classification and Phylogeny of Nemacheiline Loaches of the Group Lacking the Preethmoid I (Cypriniformes: Balitoridae: Nemacheilinae). Journal of Ichthyology, 49 (10): 874-898.
Prokofiev, A. M. 2009. Problems of the Classification and Phylogeny of Nemacheiline Loaches of the Group Lacking the Preethmoid I (Cypriniformes: Balitoridae: Nemacheilinae). Journal of Ichthyology, 49 (10): 874-898.
Fang, F., Norén, M., Liao, T.Y., Källersjö, M. & Kullander, S.O. 2009. Molecular phylogenetic interrelationships of the south Asian cyprinid genera Danio, Devario and Microrasbora (Teleostei, Cyprinidae, Danioninae). Zoologica Scripta, v. 38 (no. 1): 1-20.
Hoese, D. F. & Motomura, H. 2009. Descriptions of two new genera and species of ptereleotrine fishes from Australia and Japan (Teleostei: Gobioidei) with discussion of possible relationships. Zootaxa, 2312: 49-59.
Sonnenberg, R. & Busch, E. 2009. Description of a new genus and two new species of killifish (Cyprinodontiformes: Nothobranchiidae) from West Africa, with a discussion of the taxonomic status of Aphyosemion maeseni Poll, 1941. Zootaxa, 2294: 1-22.
Prokofiev, A. M. 2009. Problems of the Classification and Phylogeny of Nemacheiline Loaches of the Group Lacking the Preethmoid I (Cypriniformes: Balitoridae: Nemacheilinae). Journal of Ichthyology, 49 (10): 874-898.
Last, P. R. & Gledhill, D. C. 2009. A revision of the Australian handfishes (Lophiiformes: Brachionichthyidae), with descriptions of three new genera and nine new species. Zootaxa, 2252: 1-77.
Menezes, N. A., Ferreira, K. M. & Netto-Ferreira, A. N. 2009. A new genus and species of inseminating characid fish from the rio Xingu basin (Characiformes: Characidae). Zootaxa, 2167: 47–58.
Parisi, B. M. & Lundberg, J. S. 2009. Pimelabditus moli, a new genus and new species of pimelodid catfish (Teleostei: Siluriformes) from the Maroni River basin of northeastern South America. Notulae Naturae (Philadelphia), 480: 1-11.
Hoese, D. F. & Motomura, H. 2009. Descriptions of two new genera and species of ptereleotrine fishes from Australia and Japan (Teleostei: Gobioidei) with discussion of possible relationships. Zootaxa, 2312: 49-59.
Last, P. R. & Gledhill, D. C. 2009. A revision of the Australian handfishes (Lophiiformes: Brachionichthyidae), with descriptions of three new genera and nine new species. Zootaxa, 2252: 1-77.
Shinohara, G. & Yabe, M. 2009. A new genus and species of prickleback (Perciformes: Stichaeidae) from Japan. Ichthyological Research, 56 (4): 394–399.