| Main Ref. | Randall, J.E., G.R. Allen and R.C. Steene, 1990 |
| Utseende refererar till | |
| Bones in OsteoBase | Skull, Spine |
| specialiserade organ | |
| annat utseende | |
| andra färger | |
| Anmärkningar |
| Särskilt slående egenskaper | |
| Lateral kroppsform | short and / or deep |
| Tvärsnitt | compressed |
| Dorsal profil av huvudet | clearly convex |
| Ögontyp | more or less normal |
| Typ av mun/snyte | more or less normal |
| Munnens placering | terminal |
| Type of scales | cycloid scales |
| Diagnos |
Description: Body superficially naked, with minute and embedded scales. Body silvery with light metallic bluish tinge dorsally; a small diffuse dark spot on opercle (Ref. 26938); juveniles with five chevron -shaped bars (Ref. 90102). Scales minute and embedded; scutes 12-30 (Ref. 90102). Weakly developed scutes, appearing naked. Only fish in the family that does not have dorsal fin spines throughout life (Ref. 26938). Spines of first dorsal fin embedded and not apparent at fork length greater than about 17cm; spines of first anal fin embedded with growth (Ref. 90102). Anterior 4-5 dorsal and anal soft rays of juveniles extremely long and filamentous (Ref. 48635, Ref. 90102). Villiform teeth disappearing with growth. Body very deep in juveniles about 1.5 in FL, becoming more elongate with growth (Ref. 90102). |
| Ease of Identification |
| Sidolinjer | 1 avbruten: No |
| Fjäll längs sidolinje | 120 - 140 |
| Porbärande fjäll längs sidolinje | |
| Fjäll i lateralserie | |
| Antal rader fjäll ovan sidolinje | |
| Antal rader fjäll under sidolinje | |
| Fjäll runt stjärtfensspole | |
| Skäggtömmar | 0 |
| Gälspringor (endast hos hajar/rockor) | |
| Gälräfständer | |
| på undre del av gälbåge | 12 - 17 |
| på övre del av gälbåge | 4 - 6 |
| totalt | 16 - 23 |
| Ryggkotor | |
| preanal | |
| totalt |
| Egenskaper | other |
| Antal fenor | 2 |
| Antal småfenor | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Totalt antal hårda fenstrålar | 7 - 8 |
| Totalt antal mjuka fenstrålar | 18 - 22 |
| Fettfena | absent |
| Egenskaper | forked; more or less normal |
| Antal fenor | 2 |
| Totalt antal hårda fenstrålar | 3 - 3 |
| Totalt antal mjuka fenstrålar | 15 - 20 |
| Bröstfena | Egenskaper more or less normal |
| Fenstrålar hårda 0 | |
| Fenstrålar mjuka 18 - 20 | |
| Bukfenor | Egenskaper more or less normal |
| Position thoracic before origin of D1 | |
| Fenstrålar hårda | |
| Fenstrålar mjuka |