Larvae Summary

Larvae Information Summary for Ophidion scrippsae

( not available )

Main Ref:

Ambrose, D.A. 1996

Yolk-sac larvae

	max	min	mod	Ref.
Length at birth (mm)			25	36413
Preanal L. % TL	53	35

Place of development	planktonic
Larval area	California Current region
Yolk-sac		Ref:
Yolk		Oil globules
Rows on tail	dorsal + ventral + lateral row
Other melanophores on tail	no other melanophores
Melanophores on head + trunk	melanophores on trunk
Pigmentation: finely scattered over body; row near margins of dorsal and anal finfolds.

Post larvae

Striking feature	none
Striking shape lateral	eel-like	dorsal
Striking feature	none
Shape of gut	spherical or gut loop
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	melanophores on head + trunk
Pigmentation late
Rows on tail	ventral + lateral row
Other melanophores on tail	no other melanophores
Melanophores on head + trunk	melanophores on head + trunk
Urostyle region early	pigmented	late	pigmented
Pectorals	normal without melanophores
Pelvics	fin rays only without melanophores
Total vertebrae: 65-69; gut loop formed at 7.5-8.5 mm in the central portion of the visceral cavity; in yolk-sac through preflexion stages, pigment row on dorsal and anal finfolds; in flexion-postflexion stages, stellate blotches laterally on body, absent from lateral midline. Pigmentation: Preflexion: ventrally on gut and tail; near anus; dorsally on body posterior to pectoral fin; at angle of lower jaw; frequently near tip and middle of lower jaw; internally above pectoral fin base. Flexion: on branchiostegal region; dorsally on gut extending laterally on posterior gut. Postflexion: increasing laterally on tail and anal fin; generally absent from dorsal and caudal fins. Transformation-juvenile: on dorsal and anal fin margins.

Meristic characters

	max	min	mod	Ref.
Total number of vertebrae	69	65		36413

	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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