A taxonomic revision of the Neotropical electric fish genus Brachyhypopomus (Ostariophysi: Gymnotiformes: Hypopomidae), with descriptions of 15 new species Author Crampton, William G. R. Department of Biology, University of Central Florida, PO Box 162368, Florida, 32816 - 2368, USA. crampton@ucf.edu Author Santana, Carlos D. de Division of Fishes, Smithsonian Institution, National Museum of Natural History, 10 th and Constitution Avenue, NW, Washington, DC 20560 - 0159, USA. apteronotidae@ig.com.br Author Waddell, Joseph C. Department of Biology, University of Central Florida, PO Box 162368, Florida, 32816 - 2368, USA. joecwaddell@knights.ucf.edu Author Lovejoy, Nathan R. Department of Biological Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, ON M 1 C 1 A 5, Canada lovejoy@utsc.utoronto.ca text Neotropical Ichthyology 2016 e 150146 2016-12-31 14 4 639 790 http://dx.doi.org/10.1590/1982-0224-20150146 journal article 314778 10.1590/1982-0224-20150146 635170d7-a205-45be-90c7-807cc6d17f50 1982-0224 13331233
Table 5. Counts of the number of bilateral columns of electrocytes (EC1 = electrocyte columns at anal-fin terminus, EC2 = electrocyte columns at mid-caudal filament), and scale rows above lateral line (LL) for 28 species of Brachyhypopomus. Regions: type regions are preceded by an asterisk. See Table 2 for list of country and state abbreviations, and additional notes on regions. Electrocyte columns presented as range, with mode in parentheses. Data in the format “3/4” indicates alternation of 3 and 4 columns in individual specimens at the measurement point. N for electrocyte columns refer to immature specimens, mature females, and mature males, respectively (total in parentheses). For EC and SAL, mode is replaced by median (underlined) if no modal value.
SpeciesRegionElectrocyte columnsScales above LL
ImmatureMature FemaleMature maleNRange/modeN
EC1EC2EC1EC2EC1EC2
B. alberti*upper Madeira dr., Beni, BO3333337,2,3 (12)4-6 (5)13
B. arrayae*upper Madeira dr., Beni, BO3333337,6,2 (15)5-6 (5)12
B. batesi*r. Amazonas, Am, BR3232329,4,2 (15)5-7 (5)15
B. beebeir. Amazonas, Am, BR333333-410,10,10 (30)5-7 (6)20
B. belindae*r. Amazonas, Am, BR4-5 (4.5)4-5 (4.5)----45-6 (6)6
B. benjamini*r. Ucayali, Lo, PE33333310,10,10 (30)5-7 (6)20
B. bennetti*r. Amazonas, Am, BR65-6 (5)666610,10,10 (30)5-7 (6)20
B. bombillar. Paraguay, PA33333310,3,2 (15)5-7 (6)15
B. brevirostris*r. Guaporé, BR; R. Beni, BO3333336,6,6 (18)7-9 (8)15
B. bullocki*r. Orinoco, CO, VE3333336,4,4 (14)5-7 (6)12
B. cunia*r. Madeira, Am, BR3333336,5,2 (13)5-7(6)10
B. diazir. Orinoco, AM, VE4-5 (4)4-6 (5)4-5 (4)4-6 (5)4-5 (4)5-6 (5)10,5,5 (20)5-7 (6)12
B. draco*r. Uruguay, coastal drs, Rs, BR33-43333-4 or 3/46,4,10 (20)4-6 (5)16
B. flavipomus*r. Amazonas, Am, BR33333315,15,10 (40)5-6 (5)20
B. gauderio*l. Patos, R. Uruguay, Rs, BR33 or 3/4 (3)33 or 3/4 (3)33 or 3/4 (3)15,15,15 (45)4-7 (5)20
B. hamiltoni*r. Amazonas, Am, BR3333338,2,2 (12)5-7 (5)14
B. hendersoni*r. Amazonas, Am, BR33333315,10,10 (35)5-7 (6)36
B. janeiroensis*coastal drs, Rj, BR4444445,4,6 (15)4-6 (5)10
B. jureiae*r. Ribeira de Iguape, Sp, BR4444443,4,1 (8)6-7 (6)5
B. menezesi*r. São Francisco, Ba, Mg BR3333332,4,2 (8)6-7 (6)7
B. occidentalis*Pacific coast drs. CO44-5 (4)44-5 (4)4-5 (4)4-5 (4)5,6,4 (15)5-7 (7)13
B. palenque*r. Guayas, Los Ríos, EC4-5 (5)4-6 (5)4-5 (5)4-6 (5)4-5 (5)4-6 (5)6,8,8 (22)5-6 (6)21
B. pinnicaudatusr. Amazonas, Am, BR33333310,10,10 (30)4-6 (5)20
B. provenzanoi*r. Orinoco, Am, VE3333335,4 (9)4-5 (4)18
B. regani*r. Amazonas, Am, BR33333310,5,5 (20)5-7 (6)27
B. sullivani*r. Ucayali, Lo, PE33333315,10,10 (35)5-7 (6)16
B. verdii*r. Ucayali, Lo, PE33333315,10,10 (35)5-6 (5)30
B. walteri*r. Amazonas, Am, BR3-4 (3)3-4 (3)3-4 (3)3-4 (3)3-4 (3)3-4 (3)10,6,6 (22)5-7 (7)20