FishBase |
Main Ref: | Moser, H.G. and E.H. Ahlstrom 1996 |
max | min | mod | Ref. | |
Length at birth (mm) | 2.8 | |||
Preanal L. % TL | 70 | 46 |
Place of development | planktonic | |||
Larval area | California Current region | |||
Yolk-sac | Ref: | |||
Yolk | Oil globules | |||
Rows on tail | ||||
Other melanophores on tail |
Striking feature | drop-shaped eyes | |||
Striking shape lateral | normal (not striking) | dorsal | ||
Striking feature | drop-shaped eyes | |||
Shape of gut | elongated | |||
Gas bladder early | late | |||
Spinal armature early | no spines | late | no spines | |
Pigmentation early | ||||
Rows on tail | no rows | |||
Other melanophores on tail | no other melanophores | |||
Melanophores on head + trunk | melanophores on head + trunk | |||
Pigmentation late | ||||
Rows on tail | no rows | |||
Other melanophores on tail | no other melanophores | |||
Melanophores on head + trunk | melanophores on head | |||
Urostyle region early | unpigmented | late | unpigmented | |
Pectorals | normal melanophores at fin base | |||
Pelvics | fin rays only without melanophores | |||
Initially moderately slender, becoming deep-bodied and highly compressed; head large with narrow elliptical eyes; conical choroid tissue extremely elongate, unpigmented; terminal gut section only slightly deflected; snout becomes bulbous; large finfolds; early pigment, except postorbital, lost; pigment on branchiostegal membrane and liver forms in postflexion stage; Br2 photophores form at about 5.0 mm; lack of pigment on tail distinguishes C. nigroocellatus from those of C. andreae. Pigmentation: Preflexion: at <4.0 mm, anterodorsal to pectoral fin base, on trunk near axilla, on upper and lower jaw tips, posterior margin of orbit, anteromedial to mid- and forebrain, and lateral to terminal gut; all but postorbital pigment lost by end of stage. Flexion: by about 6.0 mm, series outline Br rays, and patch on ventral surface of liver. Postflexion: on largest larvae, on posteroventral margin of orbit and posteriorly on upper and lower jaws. Sequence of fin formation: caudal and pectorals, dorsal and anal, pelvics. |
max | min | mod | Ref. | |
Total number of vertebrae | 40 | 35 | 31442 |
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 |
Back to Search |