Argyropelecus hemigymnus Cocco 1829

Lima, Adriano T., Costa, Paulo A. S., Braga, Adriana C., Nunan, Gustavo W. A. & Mincarone, Michael M., 2011, Fishes of the family Sternoptychidae (Stomiiformes) collected on the Brazilian continental slope between 11 ° and 23 ° S, Zootaxa 2742, pp. 34-48 : 40

publication ID	https://doi.org/ 10.5281/zenodo.206673
publication LSID	lsid:zoobank.org:pub:F07D7FB8-A6BD-4D0A-948C-E377D9BF8D6C
DOI	https://doi.org/10.5281/zenodo.6185425
persistent identifier	https://treatment.plazi.org/id/039287A7-D353-A069-2DFA-FC6DFDCE4DCC
treatment provided by	Plazi
scientific name	Argyropelecus hemigymnus Cocco 1829
status

Treatment

Argyropelecus hemigymnus Cocco 1829 View in CoL

( Fig. 2 View FIGURE 2 D; Table 2 View TABLE 2 )

Material examined. 5 specimens (20.2–29.0 mm SL): MNRJ 30141, 1(20.2 mm), E-0507; MNRJ 30351, 2(25.2–29.0 mm), AG1-7.2; MNRJ 30358, 1(24.1 mm), AG1-12; MNRJ 30360, 1(28.5 mm), AG2-9.

Additional material. 5 specimens (17.1–27.6 mm SL; REVIZEE Program, mid-water trawl): MZUSP 78223, 4(20.0– 27.6 mm), 31°04’25’’S, 49°15’05’’W, 29.xi.1999; MZUSP 80523, 1(17.1 mm), 26°16’29’’S, 45°46’35’’W, 07.x.1999.

Diagnosis. Argyropelecus hemigymnus can be differentiated from its congeners by the following combination of characters: small size, rarely larger than 38 mm SL; trunk long and narrow; a single well developed post-abdominal spine, directed posteriorly, with both margins serrated.

Meristic description. Fin rays: D 8; A 10–11; P1 10. Gill rakers: 19–21 (7–9+1–2+10–11). Photophores: BR 6; I 6; AB 12; SAB 6; PAN 4; AN 6; SC 4; SP 2.

Distribution. Worldwide in tropical, subtropical, and subpolar waters. This species occurs along the entire Brazilian coast.