Larvae Information Summary for
Zeugopterus punctatus
| Main Ref: | Russell, F.S. 1976 | |||
Yolk-sac larvae
| min | max | mod | Ref. | |
| Length at birth (mm) | 2.5 | 2.94 | 2.6 | |
| Preanal L. % TL | 42.7 | 49 | 45.3 | 37 |
| Place of development | planktonic | |||
| Larval area | to be filled | |||
| Yolk-sac | ovoid pigmented | Ref: | ||
| Yolk | unsegmented | Oil globules | one oil globuleposteriorventral | |
| Rows on tail | dorsal + ventral row | |||
| Other melanophores on tail | tail partly covered with melanophores | |||
| Melanophores on head + trunk | melanophores on head + trunk | |||
| No melanophores on the caudal extremity. Pigment on the primordial fin concentrated along the outer margins, in theform of V-shaped. | ||||
Post larvae
| Striking feature | other | |||
| Striking shape lateral | short and/or deep | dorsal | compressed | |
| Striking feature | other | |||
| Shape of gut | triangular | |||
| Gas bladder early | invisible | late | invisible | |
| Spinal armature early | otocystic spines only | late | otocystic spines only | |
| Pigmentation early | ||||
| Rows on tail | dorsal + ventral row | |||
| Other melanophores on tail | tail partly covered with melanophores | |||
| Melanophores on head + trunk | melanophores on head + trunk | |||
| Pigmentation late | ||||
| Rows on tail | no rows | |||
| Other melanophores on tail | tail completely covered with melanophores | |||
| Melanophores on head + trunk | melanophores on head + trunk | |||
| Urostyle region early | pigmented | late | pigmented | |
| Peritoneum | covered with melanophores | |||
| Pectorals | normal | |||
| Pelvics | normal (i.e. small or absent) | |||
| The dorsal row of melanophores tends to break up into groups corresponding with those of the fin. Strong pigmentation along the preanal ventral contour, the lower jaw, the snout, and the base of the pectoral fin. | ||||
| L 1st feeding | Ref. | Months of presence of larvae | ||||
| max | 4.1 | Jan | Feb | Mar | Apr | |
| min | 3.8 | May | Jun | Jul | Aug | |
| mod | 3.95 | Sep | Oct | Nov | Dec | |
| Water parameters Metric characters |