FishBase
Larvae Information Summary for  Pterocaesio digramma
( not available )

Main Ref: Yokoyama, K., Y. Kamei, M. Toda, K. Hirano and Y. Iwatsuki 1994
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm) 2.34 2.06 2.19 37529
Preanal L. % TL 0.54 0.4    
Place of development planktonic
Larval area aquarium, broodstock captured off Motobu, Okinawa Prefecture (Nov-Dec 1992)
Yolk-sac ovoid   pigmented Ref: 37529
Yolk unsegmented Oil globules one oil globuleanteriordorsalpigmented
Rows on tail ventral row
Other melanophores on tail tail partly covered with melanophores
Melanophores on head + trunk melanophores on head + trunk
Hatching occurs 23 hours after fertilization (Ref. 37529). Newly emerged larvae had a large yolk, elongated body, with mouth absent. Total number of myomeres at this stage is 28. Eye is unpigmented for newly hatched larvae.
Post larvae
Striking feature none
Striking shape lateral normal (not striking) dorsal tadpole-like
Striking feature none
Shape of gut spherical or gut loop
Gas bladder   early invisible late visible
Spinal armature   early several different spines late several different spines
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 pigmented late pigmented
Peritoneum with row of melanophores
Pectorals normal  
Pelvics normal (i.e. small or absent) with melanophores
Postanal myomeres = 16-18. In a 15-day old larva, the head was moderately large and compressed, the mouth is large and somewhat oblique with seven pairs of dentary teeth, the corner being behind the level of the anterior margin of the eye. Dorsal spines 6. Pigmentation on the dorsal fin membrane present in late-preflexion larvae.
Meristic characters
  max min mod Ref.
Total number of myomeres 27 25   37529
Preanal number of myomeres 10 9   37529
  L 1st feeding Ref. Months of presence of larvae
max 3.3 37529 Jan Feb Mar Apr
min 3.16 37529 May Jun Jul Aug
mod     Sep Oct Nov Dec
Water parameters     Metric characters
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