Gonatus
Gonatus is a genus of squid in the family Gonatidae, comprising twelve species, and therefore containing the most species in the family. Adult squid belonging to species in this genus are notable for their lack of tentacles.
The genus contains bioluminescent species.| Species name | Year described | Mantle length |
| Gonatus antarcticus | 1898 | 230 mm |
| Gonatus berryi | 1923 | 240 mm |
| Gonatus californiensis | 1972 | 315 mm |
| Gonatus fabricii | 1818 | 129 mm |
| Gonatus kamtschaticus | 1849 | 300 mm |
| Gonatus madokai | 1977 | 329 mm |
| Gonatus middendorffi | 1981 | 225 mm |
| Gonatus onyx | 1972 | 145 mm |
| Gonatus oregonensis | 1985 | Young squid- 46 mm |
| Gonatus pyros | 1972 | 160 mm |
| Gonatus steenstrupi | 1981 | 94 mm |
| Gonatus ursabrunae | 1985 | Young squid- 25 mm |
