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Larvae Information Summary for
Lepophidium negropinna
| Main Ref: | Ambrose, D.A. 1996 | |||
Yolk-sac larvae
| max | min | mod | Ref. | |
| Length at birth (mm) | 3 | 36413 | ||
| Preanal L. % TL | 44 | 28 |
| Place of development | planktonic | |||
| Larval area | California Current region | |||
| Yolk-sac | Ref: | |||
| Yolk | Oil globules | |||
| Rows on tail | dorsal + ventral row | |||
| Other melanophores on tail | no other melanophores | |||
| Melanophores on head + trunk | melanophores on head + trunk | |||
| Pigmentation: row below eyes extending onto snout; scattered on yolk; 2 dorsally on gut; 1 anterior to anus; 4 ventrally along tail; 2 dorsally near end of tail. | ||||
Post larvae
| Striking feature | none | |||
| Striking shape lateral | eel-like | dorsal | tadpole-like | |
| Striking feature | none | |||
| Shape of gut | spherical or gut loop | |||
| Gas bladder early | pigmented | late | ||
| 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 + trunk | |||
| Pigmentation late | ||||
| Rows on tail | ventral row | |||
| Other melanophores on tail | no other melanophores | |||
| Melanophores on head + trunk | melanophores on head + trunk | |||
| Pectorals | normal without melanophores | |||
| Pelvics | fin rays only with melanophores | |||
| Total vertebrae 75-77; gut loop formed by about 6.8 mm and positioned centrally in the visceral cavity; usually 2 pigment patches dorsally near end of tail. Pigmentation: Preflexion: on angle of lower jaw; ventral body midline below pectoral fin; at bottom of gut loop; above gas bladder; 4-6 patches ventrally along tail; 1 (small) occasionally between main ventral patches; anterior of the two dorsal tail melanophores occasionally absent. Flexion: along ventral midline of gut; on branchiostegals; on base of anal fin rays. Postflexion: on lower jaw and on caudal fin. Sequence of fin development: pelvics, pectorals, caudal, dorsal and anal. | ||||
Meristic characters
| max | min | mod | Ref. | |
| Total number of vertebrae | 77 | 75 | 36413 |
| 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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