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 3. Precaudal vertebrae counts 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. Numbers of examined specimens (N), with T = type specimens, NT = non-type specimens. Precaudal vertebrae counts range from 15 to 26 and include the Weberian vertebrae, the remaining abdominal vertebrae, and all transitional vertebrae. Modal value is shown in bold (median value is underlined where there is no modal value). The number of transitional vertebrae is shown as a range followed by the mode in parentheses. 1º Type = total number of precaudal vertebrae for name-bearing type (data for B. occidentalis refer to largest syntype specimen).? = unavailable. Description = number of precaudal vertebrae reported in original species description.

Species	Region	N	15	16	17	18	19	20	21	22	23	24	25	26	Trans.	1° Type	Description
B. alberti	*upper Madeira dr., Beni, BO	13 (8 T, 5 NT)						1	6	6					1-2 (2)	22
B. arrayae	*upper Madeira dr., Beni, BO	15 (6 T, 9 NT)						7	4	3	1				1-2 (2)	22
B. batesi	*r. Amazonas, Am, BR	15 (7 T, 8 NT)		2	6	7									1-2 (2)	17
B. beebei	*r. San Juan, Monagas, VE	2 (2 T)								2					1-2	22
-	r. Amazonas, Am, BR	30 (30 NT)							12	16	2				1-3 (2)	-
B. belindae	*r. Amazonas, Am, BR	6 (6 T)										3	2	1	1-2 (1)	24
B. benjamini	*r. Ucayali, Lo, PE	35 (29 T, 6 NT)		15	20										1-2 (2)	17
B. bennetti	*r. Amazonas, Am, BR	33 (33 NT)			2	24	7								1-2 (2)	?	17-19
B. bombilla	*l. Patos-Mirim, Rs, BR	9 (9 NT)			4	4	1								1-2 (2)	?
-	r. Uruguay, R. Paraguay, Mt, Rs, BR	25 (25 NT)	6	14	2	3									1-2 (2)	-
-	upper Madeira dr., BO, PE	32 (32 NT)	1	12	13	6									1-2 (1)	-
B. brevirostris	*r. Guaporé, BR; R. Beni, BO	11 (1 T, 10 NT)				1	9	1							1-2 (2)	19
-	r. Amazonas, Am, BR	33 (33 NT)				6	23	4							1-2 (2)	-
-	r. Orinoco, VE	27 (27 NT)					13	13	1						1-2 (2)	-
-	r. Paraguay, BR	8 (8 NT)				1	7								1-2 (1)	-
B. bullocki	*r. Orinoco, Meta CO, Apure VE	19 (19 NT)	2	12	5										1-2 (2)	?	15-17
B. cunia	*r. Madeira, Am, BR	15 (12 T, 3 NT)		12	3										1-2 (2)	16
B. diazi	*coastal drs. Carabobo, VE	11 (11 NT)			1	9	1								2-3 (2)	?
-	r. Orinoco, Apure, VE	26 (26 NT)		1	15	10									2-3 (2)	-
B. draco	*r. Uruguay, coastal drs., Rs, BR	22 (22 NT)							1	8	11	1	1		1-3 (2)	?	21-23
-	r. Paraguay, Ca, Pr, PR	9 (9 NT)							3	4	2				1-3 (2)	-
B. flavipomus	*r. Amazonas, Am, BR	26 (24 T, 2 NT)				5	20	1							1-2 (1)	18
B. gauderio	*l. Patos, R. Uruguay, Rs, BR	15 (2 T, 13 NT)						6	8	1					1-2 (2)	?	20-21
-	r. Paraguay, PR	16 (16 NT)				1	4	10	1						2-3 (2)	-
B. hamiltoni	*r. Amazonas, Am, BR	16 (16 T)					4	9	3						1-3 (1)	19
B. hendersoni	*r. Amazonas, Am, BR	60 (51 T, 9 NT)	3	53	4										1-2 (1)	16
B. janeiroensis	*coastal drs., Rj, BR	21 (21 NT)					5	16							1-2 (1)	?
B. jureiae	*r. Ribeira de Iguape, Sp, BR	3 (3 NT)						3							1-2 (2)	?
B. menezesi	*r. São Francisco, Ba, Mg BR	6 (6T)		5	1										1-2 (2)	16
B. occidentalis	*Pacific coast drs. CO	15 (7 T, 8 NT)					10	5							1-3 (2)	19
-	lago Maracaibo dr., Zulia, VE	16 (16 NT)			1	11	4								1-3 (2)	-
-	eastern Atlantic drs., PN	9 (9 NT)				2	7								(2)	-
-	western Atlantic drs., PN	15 (15 NT)				1	10	4							2-3 (2)	-
-	eastern Pacific drs., PN	15 (15 NT)				2	11	2							1-3 (2)	-
-	western Pacific drs., PN	3 (3 NT)				2	1								(2)	-
B. palenque	*r. Guayas, Los Ríos, EC	17 (5 T, 12 NT)					1	5	10	1					1-3 (2)	20
B. pinnicaudatus	*coastal swamp, Cayenne, FG	8 (7 T, 1 NT)						7	1						2-3 (2)	20
-	r. Amazonas, Am, BR	38 (38 NT)				1	19	18							1-2 (1)	-
B. provenzanoi	*r. Orinoco, Am, VE	38 (38 T)	2	26	10										1-2 (1)	16
B. regani	*r. Amazonas, Am, BR	30 (18 T, 12 NT)		12	17	1									1-2 (2)	17
B. sullivani	*r. Ucayali, Lo, PE	32 (32 T)	1	28	3										1-2 (2)	16
-	r. Beni, Beni, BO	6 (6 NT)	2	4											1-2 (1)	-
-	r. Orinoco, Am, VE	15 (15 NT)		7	7	1									1-2 (1)	-
B. verdii	*r. Ucayali, Lo, PE	20 (20 T)										3	12	5	1-2 (2)	25
B. walteri	*r. Amazonas, Am, BR	30 (30 NT)		1	7	14	7	1							1-2 (1)	?	17-20
-	r. Paraguay, Ms, Mt, BR	15 (15 NT)				10	5								1-2 (1)	-