| FishBase |
Larvae Information Summary for
Stemonosudis macrura
| Main Ref: | Ambrose, D.A. 1996 | |||
Yolk-sac larvae
| max | min | mod | Ref. | |
| Length at birth (mm) | ||||
| Preanal L. % TL | 57 | 24 |
| Place of development | planktonic | |||
| Larval area | Northeastern Pacific (California Current region); Northwestern Pacific (Japan) | |||
| Yolk-sac | Ref: | |||
| Yolk | Oil globules | |||
| Rows on tail | ||||
| Other melanophores on tail | ||||
Post larvae
| Striking feature | none | |||
| Striking shape lateral | eel-like | dorsal | ||
| Striking feature | none | |||
| Shape of gut | tube-like | |||
| Gas bladder early | absent | late | absent | |
| Spinal armature early | no spines | late | no spines | |
| Pigmentation early | ||||
| Rows on tail | dorsal + ventral row | |||
| Other melanophores on tail | no other melanophores | |||
| Melanophores on head + trunk | melanophores on head | |||
| Pigmentation late | ||||
| Rows on tail | dorsal + ventral row | |||
| Other melanophores on tail | no other melanophores | |||
| Melanophores on head + trunk | melanophores on head + trunk | |||
| Urostyle region early | unpigmented | late | pigmented | |
| Peritoneum | with row of melanophores | |||
| Pectorals | normal without melanophores | |||
| Pelvics | fin rays only without melanophores | |||
| A prominent cartilaginous prolongation of the lower jaw present through transformation stage; juveniles with 16-17 peritoneal pigment patches and a row of punctate melanophores along each side of dorsal body margin; 33-38 anal fin rays. Pigmentation: Preflexion: on prolongation of lower jaw, snout, base of cranium behind eye; by about 7 mm, 3-5 patches on peritoneum; by about 8 mm, 4-5 rows along ventral tail margin and 2-3 patches along dorsal tail margin. Flexion-postflexion: above and below end of notochord; peritoneal patches increases from 4 to 15. Transformation-juvenile: row along body margin between anus and anal fin; row along base of anal fin; 2 rows on lateral caudal peduncle region; row along dorsal body margin increases with development; 16-17 peritoneal patches. Sequence of fin development: anal, caudal, dorsal, pectorals, pelvics, adipose. | ||||
Meristic characters
| max | min | mod | Ref. | |
| Total number of vertebrae | 97 | 85 | 35950 |
| 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 |
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