During the preflexion stage, a single row of 8-14 melanophores (mean: 11), usually elongate, extends from myomeres
10-11 to 20-24 (modal number: 10-21), at a spacing of about one melanophore per myomere
, and appears as an almost continuous line of pigment.
were counted from the myomere
partly containing the most posterior gill opening to the last myomere
with posterior angle positioned above the cloaca (Hubbs & Trautman 1937).
2010) described a new Tenpo under, Elops smithi, distinguishable morphologically only by myomere
(larvae) or vertebral (adults) counts from Elops saurus; E.
0 mm TL, had a large yolk sac, and displayed pigment along myomere
On the trunk, the new neuromasts appear in middle intervening positions with respect to the initial ones; they also tend to form at different myomere
level on both sides (Fig.
Line of pigment on ventral body margin from 4th to 6th myomeres
posterior to anus to penultimate posterior myomere
For RNA preparation, we collected tadpole tail tissue by removing it at the fifth myomere
and immediately stored the tissue in the RNA preservative RNAlater (Ambion Inc.
Larvae had 23-26 myomeres
(mode: 25 myomeres
), 7-12 preanal and 13-18 postanal; the myomere
formula did not change with development.
Five post-anal melanophores were also displayed on myomere
five and six.
The larval mouth has been thought to develop in the first mesodermal domain (van Wijhe, 1906; Franz, 1927) and expands up to the region of the eighth myomere
, though it does not cross over the myomere
A small group of spots is present on the ventral body margin near the last 2 or 3 myomeres
and an additional 3 or 4 spots are located along the ventral margin of the notochord beyond the last myomere
Dense xanthophores are present on the ventral finfold edge from the anal pore to the last myomere
, forming a distinct yellow edge.