| FishBase |
Larvae Information Summary for
Gobiesox rhessodon
| Main Ref: | Watson, W. 1996 | |||
Yolk-sac larvae
| max | min | mod | Ref. | |
| Length at birth (mm) | 4 | 3 | ||
| Preanal L. % TL |
| Place of development | planktonic | |||
| Larval area | California Current region | |||
| Yolk-sac | Ref: | |||
| Yolk | Oil globules | |||
| Rows on tail | ||||
| Other melanophores on tail | ||||
Post larvae
| Striking feature | other | |||
| Striking shape lateral | normal (not striking) | dorsal | ||
| Striking feature | other | |||
| Shape of gut | elongated | |||
| Gas bladder early | pigmented | late | pigmented | |
| Spinal armature early | late | |||
| Pigmentation early | ||||
| Rows on tail | ventral row | |||
| Other melanophores on tail | no other melanophores | |||
| Melanophores on head + trunk | melanophores on head + trunk | |||
| Pigmentation late | ||||
| Rows on tail | ventral row | |||
| Other melanophores on tail | no other melanophores | |||
| Melanophores on head + trunk | melanophores on head + trunk | |||
| Urostyle region early | unpigmented | late | unpigmented | |
| Pectorals | normal melanophores at fin base | |||
| Pelvics | joint at base or sucker disk | |||
| Lateral melanophores on trunk and first 1-3 postanal myomeres; melanophores on ventral margin of tail; myomeres 13-15 + 14-17 = 28-30 (usually 13-14 + 15-16 = 29). Pigmentation: Preflexion-postflexion: 0-4 dorsally on head (usually 0-1); present or absent internally under hindbrain (usually present); on pectoral fin base near insertion (sometimes absent); dorsally along length of gut and over gas bladder; about 8-17 externally laterally on body, from level of pectoral fin to about first to third postanal myomere; 1 to about 7 or 8 along ventral margin of tail, often restricted to posterior half of tail. Juvenile: body completely pigmented, usually with mottled or weakly banded pattern. Sequence of fin development: caudal, dorsal and anal, pectorals and pelvics. | ||||
Meristic characters
| max | min | mod | Ref. | |
| Total number of vertebrae | 29 | 28 | 36496 |
| L 1st feeding | Ref. | Months of presence of larvae | ||||
| max | Jan | Feb | Mar | Apr | ||
| min | May | Jun | Jul | Aug | ||
| mod | Sep | Oct | Nov | Dec | ||
| Water parameters Metric characters |
| Back to Search |