SeaLifeBase
Larvae Information Summary for  Leukoma staminea
( not available )

Main Ref: Shaw, W.N. 1986
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm)        
Preanal L. % TL        
Place of development planktonic
Larval area British Columbia, Canada
Yolk-sac       Ref:  
Yolk   Oil globules  
Embryos develop into trocophore larvae 12 hours after fertilization, length varied from 0.06 to 0.08 mm. A ciliated velum develops and helps the larva swim and maintain itself in the upper part of the water column.
Post larvae
Striking feature  
Striking shape lateral   dorsal  
Striking feature  
Shape of gut  
Gas bladder   early   late  
Spinal armature   early   late  
Trocophore larvae develops into veliger in the next 24 hours. The veliger develops an umbo (prodissoconch) and may reach a length of 0.26 to 0.28 mm in 2 weeks. It develops a foot and an eye spot, moves to the bottom, and searches for a suitable surface to settle. Once a suitable surface is found, the larvae undergo metamorphosis and attach to the surface by secreting byssal threads. Depending on food supply and temperature, the planktonic larval stage generally lasts about 3 weeks.
  L 1st feeding Ref. Months of presence of larvae
max     Jan Feb Mar Apr
min   May Jun Jul Aug
mod 0.15 104667 Sep Oct Nov Dec
Water parameters     Metric characters
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