Larvae Summary

Larvae Information Summary for Coelorinchus scaphopsis

( not available )

Main Ref:

Ambrose, D.A. 1996

Yolk-sac larvae

	max	min	mod	Ref.
Length at birth (mm)
Preanal L. % TL	37	29

Place of development	planktonic
Larval area	Gulf of California
Yolk-sac		Ref:
Yolk		Oil globules
Rows on tail
Other melanophores on tail

Post larvae

Striking feature	some dorsal fin rays very elongated
Striking shape lateral	normal (not striking)	dorsal
Striking feature	some dorsal fin rays very elongated
Shape of gut	triangular
Gas bladder early	visible	late	visible
Spinal armature early	no spines	late	no spines
Pigmentation early
Rows on tail	ventral + lateral 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	unpigmented	late	unpigmented
Pectorals	normal melanophores at fin base
Pelvics	with elongated fin rays melanophores at fin base
Branchiostegal rays: 6; total first dorsal rays 9-11; pelvics 11; pyloric caeca 15-26; gas glands 4; anal fin forms at a small body length (by 6.5 mm); anus not adjacent to anal fin; elongate first dorsal and pelvic rays; pigmentation absent from lower jaw and snout through anal fin formation, present anteriorly on tail. Pigmentation: Preanal fin formation: on top of head; posterior to eye; on preoperculum and operculum; ventral body anterior to gut; on side of gut; on ventral and lateral surface of anterior half of tail. Anal fin formation: anterior on tail to about anal fin ray 25-32; by about 18 mm, on base of pectoral and pelvic fins. Sequence of fin formation: pelvics, first dorsal, second dorsal, anal, pectorals.

	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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