Revision of the polytypic electric fish Gymnotus carapo (Gymnotiformes, Teleostei), with descriptions of seven subspecies Author Albert, James S. text Zootaxa 2017 2017-08-08 4318 3 401 438 journal article 32158 10.11646/zootaxa.4318.3.1 8d4c68da-48ac-44d9-982b-bb2a13ed886c 1175-5326 887692 2848Cac4-F301-4A47-B6Cd-366051Ad2B5E Gymnotus carapo carapo New Subspecies Figure 3 C, Tables 3 and 4 Syntypes: NRM 64 (1), 262 mm ; NRM 8224 (1), 331 mm ; UUZM Linn. coll. 56 (1), 293 mm . Collected in the first half of the 18th Century near Paramaribo, Suriname (Lönnberg 1896:23; Fernholm & Wheeler 1983 :216–217; Wheeler 1991 :162–163, fig. 6). Non-Types: MCZ 31219 (1), 262 mm , Suriname (exact locality unknown) . UMMZ 190414 , 260 mm, Suriname , Brokopondo , Suriname River , Tapeoeripa creek near Brokopondo village ( 05°04’N , 054°58’W ) . UMMZ 190414 (5), 71–214 mm , Suriname , Brokopondo , Suriname River , Tapeoeripa creek near. Brokopondo village ( 05°04’N , 054°58’W ) . USNM 225274 (8), 81–318 mm , Suriname , Nickerie , Lucie River , upstream of Amotopo-Camp Geologie Rd. ( 03°36’N , 57°37’W ) . USNM 225275 (11), 81–270 mm , Suriname , Nickerie , Corantijn River , 350 m downstream from Wilhelm II falls ( 03°34’N , 057°15’W ) . USNM 225276 (16), 75–148 mm , Suriname , Nickerie , Corantijn River, Dalbana Creek, ca. 3 km upstream from Amotopo–Camp Geologie Rd. ( 04°20’N , 057°37’W ) . USNM 225284 (10), 54–143 mm , Suriname , Nickerie , Corantijn River , Lana Creek , ca. 4 km from intersection with W. Corantijn River ( 05°28’N , 057°15’W ) . USNM 225285 (12), 85–257 mm , Suriname , Nickerie , Corantijn River , creek south of Matapi , approx. 2 km downstream of Cow Falls ( 04°59’N , 057°38’W ) . USNM 225286 (15), 80–319 mm , Suriname , Nickerie , Corantijn River , Koekwie creek ( 05°31’N , 057°10’W ) . USNM 225290 (19), 14–157 mm , Suriname , Nickerie , Corantijn River , Dalibane Creek , Camp Dacclemmen ( 05°34’N , 057°11’W ) . USNM 225297 (14), 53–137 mm , Suriname , Nickerie , Corantijn River , stream on S. side Lucie River ( 03°35’N , 057°39’W ) . UF 180165 (6), 185–337 mm , Suriname , Para , Kola Kreek aff. Para River ( 05°27’8.820”N , 055°14’42.060”W ) . UF 180169 (5), 182–340 mm , Suriname , Brokopondo , Marshall Kreek , aff. Suriname River ( 05°14’24.9”N , 055°05’58.6”W ) . UF 180173 (11), 34–72 mm ; UF 180175 (2), 65–219 mm , Suriname , Marowijne , Cottica Rivier , aff. Commewijne River ( 05°35.21’N , 054°17.11’W ) . Description: Specimens of G. carapo from Suriname overlap substantially in morphometric and meristic PCspace with specimens from other localities ( Figures 4 , 5 , and 12). Gymnotus carapo carapo is characterized by the following combination of statistically significant (p <0.01) traits when compared to the rest of the species as a whole (see Principal Components Analyses and t-tests): long preorbital distance ( PR 31.4%–40.2% HL, mean 36.3% vs. 28.0%–39.4%, mean 34.6% in all other subspecies) and wide mouth (MW 33.6%–47.6% HL, mean 43.0% vs. 32.2%–49.0%, mean 40.2% in all other subspecies). Distribution: Known from Atlantic coastal drainages of Suriname and French Guiana , including the Brokopondo , Nickerie , and Suriname districts of Suriname in the Lucie, Suriname , and Corantijn rivers, and all departments of French Guiana ( Figure 2 B). Etymology: Subspecific epithet derived from the specific epithet.