Unknown: BH II A1

Unknown.

Egg diameter in µm	Number of oil globules	Diameter of oil globule in µm	Yolk texture	Perivitelline space	Position of oil globule at hatch	Gut length   at eye- pigment stage	Myomeres
840-1100 x 790-960	0	N/A	clear	Narrow*	N/A	47% of NL	ca50

Egg: The slightly oval shape (A), the clear, rough surfaced yolk, and lack of an oil globule, put this egg into only a small group of possibles, yet final confirmation always had to await hatching into the elongate larva with yellow spotted finfolds. The egg shows some size variation. Pigment was not seen on the developing embryo. Incubation is about 30 hours (21°C).

Larva: The newly hatched larva has a moderately elongate gut (B; white arrow), which shortens slightly in the 4-day larva (D). The greenish/yellow pigment in the finfolds of the 2-day larva, turning more yellow in the 4-day larva, makes this species unmistakable. B: NH, C: 2 days, D: 4 days.

The species was not reared. Nine larvae hatched from this egg, have been barcoded, but no match has been found among currently available adult sequences (BOLD archive).

This was not a common egg in the Park Rynie samples, where only 118 eggs were recorded, the bulk of which (65) were taken in one sample in April 2005. The egg was not seen in the DHM samples.

Based on the limited Park Rynie data, this is a winter and spring spawner (blue graph). Most eggs were found in the offshore portion of the Park Rynie linked samples (88%), indicating spawning is occurring outside the 50m contour, although, as noted above, numbers are low and biased by a single sample. See Section 7.3 and Table 1 of the Introductory Notes, for more information on the linked samples.

linked samples	Offshore	Inshore
Eggs	93	13
Hits	19	11