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Larvae Information Summary for
Leuroglossus schmidti
| Main Ref: | Moser, H.G. and E.H. Ahlstrom 1996 | |||
Yolk-sac larvae
| max | min | mod | Ref. | |
| Length at birth (mm) | 5 | 4 | ||
| Preanal L. % TL |
| Place of development | planktonic | |||
| Larval area | Eastern Central Pacific (California Current region); Northwest Pacific (Japan) | |||
| Yolk-sac | elongated | Ref: | ||
| Yolk | segmented | Oil globules | more than one oil globulepigmented | |
| Rows on tail | no rows | |||
| Other melanophores on tail | one dorso-ventral cluster or band | |||
| Melanophores on head + trunk | no melanophores on head or trunk | |||
| Pigmentation: around notochord tip; on oil globule. | ||||
Post larvae
| Striking feature | stalked eyes | |||
| Striking shape lateral | eel-like | dorsal | ||
| Striking feature | stalked eyes | |||
| Shape of gut | tube-like | |||
| Gas bladder early | late | |||
| Spinal armature early | no spines | late | no spines | |
| Pigmentation early | ||||
| Rows on tail | no rows | |||
| Other melanophores on tail | one dorso-ventral cluster or band | |||
| Melanophores on head + trunk | melanophores on trunk | |||
| Pigmentation late | ||||
| Rows on tail | no rows | |||
| Other melanophores on tail | tail with single melanophore | |||
| Melanophores on head + trunk | melanophores on head + trunk | |||
| Urostyle region early | pigmented | late | unpigmented | |
| Peritoneum | with row of melanophores | |||
| Pectorals | normal without melanophores | |||
| Pelvics | normal (i.e. small or absent) without melanophores | |||
| Eye stalks short and only in early preflexion stage. Fin rays form in finfold, away from body margin. More lateral body pigment and higher total vertebral count than in L. stilbius (47-52 vs. 39-42). Large blotch-like melanophores on gut and body. Pigmentation: Preflexion: blotch on trunk above midgut, extends to midgut when expanded; blotch on hindgut, extends dorsad to trunk when expanded. Flexion-postflexion: series of 2-8 (large) on trunk; series of 3-6 on hindgut; 1-4 on opercle; at tip of lower jaw; 1-2 on caudal peduncle; on base of caudal fin rays in late postflexion. Sequence of fin development: caudal, anal, dorsal, pectorals, pelvics. Distinguished from B. milleri by: eye stalks short; lack of dorsal spots. | ||||
Meristic characters
| max | min | mod | Ref. | |
| Total number of vertebrae | 52 | 47 | 35604 |
| 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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