Please look in Eschmeyer's Catalog of Fishes for authorships of sections, Families of Fishes (all), and related information.

Species in the genus Megalonema: [ 7 ] records

amaxanthum, Megalonema Lundberg [J. G.] & Dahdul [W. M.] 2008:447, Fig. 6 [Neotropical Ichthyology v. 6 (no. 3); ref. 29853] Río Tahuamanu from Boca Nareuda to below Cachuelita, 11°18'S, 68°44'W, Pando State, Bolivia. Holotype: CBF 11896 [ex FMNH 106769]. Paratypes: many at ANSP, FMNH, IAvH-P, MBUCV-V, MUSM, MZUSP, NPA, USNM. Plus non-type specimens. Type catalog: DoNascimiento et al. 2016:413 [ref. 34787]. •Valid as Megalonema amaxanthum Lundberg & Dahdul 2008 -- (Barriga Salazar 2014:114 [ref. 35745], Sarmiento et al. 2014:192 [ref. 35004], Meza-Vargas et al. 2021:23 [ref. 39298], Chuctaya et al. 2022:48 [ref. 42137], Taphorn et al. 2022:55 [ref. 41297], Torrico-Destre et al. 2024:75 [ref. 41874]). Current status: Valid as Megalonema amaxanthum Lundberg & Dahdul 2008. Pimelodidae: Pimelodinae. Distribution: South America: Amazon River basin (Bolivia, Brazil, ?Colombia, Ecuador, Guyana and Peru). Habitat: freshwater.

orixanthum, Megalonema Lundberg [J. G.] & Dahdul [W. M.] 2008:450, Fig. 7 [Neotropical Ichthyology v. 6 (no. 3); ref. 29853] Río Metica, about 3 kilometers southeast of Hacienda Mozambique, 3°57'N, 73°02'W, Meta State, Colombia. Holotype: ANSP 187449. Paratypes: many at ANSP (most specimens), FMNH, IAvH-P, MBUCV-V, MZUSP, USNM. Type catalog: DoNascimiento et al. 2016:414 [ref. 34787]. •Valid as Megalonema orixanthum Lundberg & Dahdul 2008 in subgenus Eretmomegalonema -- (DoNascimiento et al. 2017:93 [ref. 35633], Lasso in Lasso & Morales-Betancourt 2022:236 [ref. 40783]). Current status: Valid as Megalonema orixanthum Lundberg & Dahdul 2008. Pimelodidae: Pimelodinae. Distribution: South America: Orinoco River basin (Colombia and Venezuela). Habitat: freshwater.

pauciradiatum, Megalonema Eigenmann [C. H.] in Driver 1919:455 [Proceedings of the American Philosophical Society v. 58 (no. 7); ref. 12423] Villa Rica, Paraguay. Holotype: CAS 63672 [ex IU 15029]. Paratypes: CAS 63673 [ex IU 15029] (3). Type catalog: Ferraris 2007:335 [ref. 29155]. Author is C. H. Eigenmann. •Valid as Megalonema pauciradiatum Eigenmann 1919 -- (Burgess 1989:275 [ref. 12860], Lundberg & Littmann in Reis et al. 2003:437 [ref. 27061], Ferraris 2007:335 [ref. 29155], Sarmiento et al. 2014:192 [ref. 35004], Koerber et al. 2017:48 [ref. 35267]). Current status: Valid as Megalonema pauciradiatum Eigenmann 1919. Pimelodidae: Pimelodinae. Distribution: Paraná River basin, Paraguay and Bolivia. Habitat: freshwater.

platanus, Pimelodus Günther [A.] 1880:10 [Annals and Magazine of Natural History (Series 5) v. 6 (no. 31) (art. 2); ref. 14279] Río Paraná, tributary of Río de la Plata. Holotype (unique): BMNH 1872.6.8.18. Type catalog: Ferraris 2007:335 [ref. 29155]. •Valid as Megalonema platanus (Günther 1880) -- (Ortega & Vari 1986:14 [ref. 9708]). •Valid as Iheringichthys platanus (Günther 1880) -- (Menni 2004:83 [ref. 28131]). •Valid as Megalonema platanum (Günther 1880) -- (Burgess 1989:275 [ref. 12860], Gómez & Chebez 1996:60 [ref. 23791], Britski et al. 1999:104 [ref. 24147], Lundberg & Littmann in Reis et al. 2003:437 [ref. 27061], López et al. 2003:59 [ref. 27366], Menni 2004:83 [ref. 28131], Ferraris 2007:335 [ref. 29155], Litz & Koerber 2014:19 [ref. 33622], Sarmiento et al. 2014:192 [ref. 35004], Mirande & Koerber 2015:32 [ref. 35117], Bertaco et al. 2016:420 [ref. 34561], Nión et al. 2016:34 [ref. 35565], Koerber et al. 2017:48 [ref. 35267], dos Reis et al. 2020:469 [ref. 38364], Loureiro et al. 2023:134 [ref. 40506], Torrico-Destre et al. 2024:77 [ref. 41874]). Current status: Valid as Megalonema platanum (Günther 1880). Pimelodidae: Pimelodinae. Distribution: South America: Paraná River basin (Argentina, Bolivia, Brazil, Paraguay and Uruguay). Habitat: freshwater.

platycephalum, Megalonema Eigenmann [C. H.] 1912:150, Fig. 31, Pl. 10 (fig. 2) [Memoirs of the Carnegie Museum v. 5 (no. 1); ref. 1227] Tumatumari, Guyana. Holotype: FMNH 53224 [ex CM 1684]. Paratypes: (4) FMNH 53225 [?ex CM 1685a; IU 12060] (2), CAS 75768 [ex IU 12060] (2). Type catalog: Henn 1928:76 [ref. 12305], Ibarra & Stewart 1987:55 [ref. 12367], Ferraris 2007:335 [ref. 29155]. Appeared first as name only in Eigenmann 1910:383 [ref. 1224] •Valid as Megalonema platycephalum Eigenmann 1912 -- (Burgess 1989:275 [ref. 12860], Galvis et al. 1997:61 [ref. 23651], Le Bail et al. 2000:94 [ref. 24549] as cf. platycephalum, Ferraris 2007:335 [ref. 29155], Barriga Salazar 2014:114 [ref. 35745], Sarmiento et al. 2014:192 [ref. 35004], DoNascimiento et al. 2017:93 [ref. 35633], Urbano-Bonilla et al. 2018:80 [ref. 35773], Grant 2021:76 [ref. 38702], Meza-Vargas et al. 2021:23 [ref. 39298], Chuctaya et al. 2022:48 [ref. 42137], Lasso et al. in Lasso & Morales-Betancourt 2022:238 [ref. 40783], Taphorn et al. 2022:55 [ref. 41297], Torrico-Destre et al. 2024:80 [ref. 41874]). Current status: Valid as Megalonema platycephalum Eigenmann 1912. Pimelodidae: Pimelodinae. Distribution: South America: Amazon, Essequibo and Orinoco River basins (Bolivia, Brazil, Colombia, Ecuador, Guyana, Peru and Venezuela). Habitat: freshwater.

psammium, Megalonema platycephalum Schultz [L. P.] 1944:216, Pl. 2 (fig. B) [Proceedings of the United States National Museum v. 94 (no. 3172); ref. 3959] Río Palmar at the bridge 70 kilometers southwest of Maracaibo, Venezuela. Holotype: USNM 121175. Paratypes: Dahl coll. [ex USNM 121176] (2); MBUCV-V-10936 [ex USNM 121177] (2); MCZ 37243 [ex USNM 121176] (2); UMMZ 142491 [ex USNM 12177] (3); USNM 121176 (14, now 10), 121177 (46, now 41), 121178 (15). Type catalog: Ferraris & Vari 1992:33 [ref. 19771], Provenzano et al. 1998:12 [ref. 24196], Ferraris 2007:335 [ref. 29155]. •Synonym of Megalonema platycephalum Eigenmann 1912, but a valid subspecies as described -- (Burgess 1989:275 [ref. 12860]). •Synonym of Megalonema platycephalum Eigenmann 1912 -- (Galvis et al. 1997:61 [ref. 23651]). •Valid as Megalonema psammium Schultz 1944 -- (Lundberg & Littmann in Reis et al. 2003:437 [ref. 27061], Ferraris 2007:335 [ref. 29155], DoNascimiento et al. 2017:93 [ref. 35633]). Current status: Valid as Megalonema psammium Schultz 1944. Pimelodidae: Pimelodinae. Distribution: Lake Maracaibo basin: Colombia and Venezuela. Habitat: freshwater.

xanthum, Megalonema Eigenmann [C. H.] 1912:16 [Indiana University Studies No. 16 [sic No. 8]; ref. 1228] Girardot, Colombia. Holotype: FMNH 56032 [ex CM 4822]. Paratypes: (CM and IU) AMNH 5340 (7, 1 c&s); BMNH 1920.12.20.112-113 (2), 1924.3.3.83-84 (2); CAS 63674-75 [ex IU 12681-82] (11, 127); FMNH 10251 (1), 10284-89 (6), 77909 (7), 56032-33 (1, 9), 69818 (71), 95984 (3, c&s); MCZ 30961; UMMZ 190406 (7, 1 c&s); USNM 76930 (24), 79222 (5), 167852 (5). Type catalog: Henn 1928:76 [ref. 12305], Böhlke 1953:44 [ref. 12291], Ibarra & Stewart 1987:55 [ref. 12367], Ferraris & Vari 1992:34 [ref. 19771], Ferraris 2007:335 [ref. 29155]. •Valid as Megalonema xanthum Eigenmann 1912 -- (Burgess 1989:275 [ref. 12860] as xanthus, Lundberg & Littmann in Reis et al. 2003:438 [ref. 27061], Ferraris 2007:335 [ref. 29155], Lundberg & Dahdul 2008:442 [ref. 29853] in subgenus Eretmomegalonema, DoNascimiento et al. 2017:93 [ref. 35633]). Current status: Valid as Megalonema xanthum Eigenmann 1912. Pimelodidae: Pimelodinae. Distribution: Magdalena River basin, Colombia. Habitat: freshwater.