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Larvae Information Summary for  Parablennius tentacularis
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Main Ref: Chesalina, T.L. 1998
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm) 2.7 2.6    
Preanal L. % TL 31 30    
Place of development in close association with substrate
Larval area shallow, coastal waters
Yolk-sac spherical   unpigmented Ref:  
Yolk   Oil globules  
Rows on tail ventral row
Other melanophores on tail no other melanophores
Melanophores on head + trunk no melanophores on head or trunk
Post larvae
Striking feature none
Striking shape lateral eel-like dorsal normal (not striking)
Striking feature none
Shape of gut triangular
Gas bladder   early   late  
Spinal armature   early no spines late no spines
Pigmentation early
Rows on tail ventral row
Other melanophores on tail no other melanophores
Melanophores on head + trunk no melanophores on head or trunk
Pigmentation late
Rows on tail ventral row
Other melanophores on tail no other melanophores
Melanophores on head + trunk no melanophores on head or trunk
Urostyle region   early unpigmented late unpigmented
Peritoneum covered with melanophores
Pectorals normal melanophores at fin base
Pelvics normal (i.e. small or absent) without melanophores
At 6 mm: 3 preopercular spines. At 7.2 mm: 1 melanophore at the end of the hipural, 5 preopercular spines. Dorsal and anal fins not yet differentiated. At 14 mm: D 29; A 23; P 14. The head is round, with large pigmented eyes, with a diameter of 0/27 mm. The body is surrounded by a thin fin fold, which begins immediately behind the head. The caudal blade is well developed. The pectoral fins are roundish, reaching the middle part of the abdominal area. The blood is colored red. The heart rate is 145-150 beats/minute (Ref. 34679). Pigmentation: The pigmented row of melanophores is conspicuous on the ventral side of the caudal area. There are star-shaped melanophores on the peritoneum. The main distinctive trait of the larvae is the presence of a dark spot on the inner part of the pectoral fin base and the absence of pigmented cells on the head (Ref. 34679).
Meristic characters
  max min mod Ref.
Total number of vertebrae     39  
  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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