| Leptocephalus larva; liver at about myomere 26; nephros at about myomere 62 (60-64); attenuate tail; compared to A. infans, relatively smaller eye and longer snout, head less depressed, nmber (5-12) and position of lateral pigment at myomeres 24-25, 46-51, and 80-84, and dorsal and ventral gut pigment from heart to anus.
Pigmentation: dorsally on notochord; three clusters (5-12 each) below midline at myomeres 24-25, 46-51, and 80-84; dorsally on gut, heavier past liver; ventrally on gut, heavier before liver.
Sequence of fin development: dorsal and anal and caudal, pectoral. |