FishBase
Larvae Information Summary for  Hippocampus abdominalis
( not available )

Main Ref: Gomon, M.F. and F.J. Neira 1998
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm)     16.2 31838
Preanal L. % TL 52 50    
Place of development planktonic
Larval area seagrass patch
Yolk-sac       Ref:  
Yolk   Oil globules  
Rows on tail  
Other melanophores on tail  
Post larvae
Striking feature tube-like snout
Striking shape lateral other dorsal other
Striking feature tube-like snout
Shape of gut  
Gas bladder   early   late  
Spinal armature   early   late  
Pigmentation early
Rows on tail dorsal + ventral + lateral row
Other melanophores on tail tail completely covered with melanophores
Melanophores on head + trunk melanophores on head + trunk
Pigmentation late
Rows on tail dorsal + ventral + lateral row
Other melanophores on tail tail completely covered with melanophores
Melanophores on head + trunk melanophores on head + trunk
Urostyle region   early pigmented late pigmented
Pelvics normal (i.e. small or absent)  
Head slightly angled to body axis at birth, angle rapidly becoming very pronounced; head with an elongate, tubular snout, and a small, flap-like mouth; anus below posterior third of dorsal fin; no caudal fin; 8-12 narrow, pale pigment bands on tail. Newly emerged larvae (16 mm) have an extremely slender body that is relatively straight at birth but which bends to the adult form within 1-2 days. Head moderate, snout elongate. Gut long, completely hidden by trunk rings. All fin elements formed at birth. Body ridges clearly visible at birth; body spines small but prominent, all of similar size. Pigmentation: Body mostly dusky, uniformly covered with small melanophores; slightly paler areas of less dense melanophores on opercle and in 8-12 narrow bands on tail. No visible internal pigments.
  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
Entered by: Luna,Susan M. - 11.05.00
Modified by: Luna,Susan M. - 15.03.05
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