Larvae Summary

Larvae Information Summary for Zeugopterus regius

Show available picture(s) for

Main Ref:

Russell, F.S. 1976

Yolk-sac larvae

	max	min	mod	Ref.
Length at birth (mm)			2.38
Preanal L. % TL

Place of development	planktonic
Larval area	to be filled
Yolk-sac	pigmented	Ref:
Yolk	unsegmented	Oil globules	one oil globule
Rows on tail	no rows
Other melanophores on tail	tail partly covered with melanophores
Melanophores on head + trunk	melanophores on head + trunk
Small melanophores especially in the posterior region of the body and primordial fin. Anus is distinctly separated from the end of yolk-sac.

Post larvae

Striking feature	other
Striking shape lateral	short and/or deep	dorsal	compressed
Striking feature	other
Shape of gut	spherical or gut loop
Gas bladder early	invisible	late	invisible
Spinal armature early	otocystic spines only	late	otocystic spines only
Pigmentation early
Rows on tail	no rows
Other melanophores on tail	tail completely 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)
Distinctive characteristic from Phrynorhombus norvegicus: at early and late postlarva, presence of one and two large otocystic spines on each side, respectively.

Meristic characters

	max	min	mod	Ref.
Total number of vertebrae			36	263

	L 1st feeding	Ref.	Months of presence of larvae
max			Jan	Feb	Mar	Apr
min			May	Jun	Jul	Aug
mod	4.7		Sep	Oct	Nov	Dec

Water parameters Metric characters

php script by kbanasihan, 09/07/10 , last modified by sortiz, 09/08/17