Multiple fluid pockets were present in the subcutaneous tissues, with the largest within the left hypaxial
muscles at the level of T13 and in the subcutaneous tissues immediately lateral to the right pelvic inlet.
Differential regulation of epaxial and hypaxial
muscle development by Paraxis.
The loss of hypaxial
musculature and presence of a kinetic pectoral girdle render the primitive mechanism of hyoid depression ineffective.
Skipjack tuna possess a well-developed large central rete, in addition to epaxial and hypaxial
vessels and retia (Stevens et al., 1974; Graham and Dickson, 2001).
Recordings for this study were made from two caudal hypaxial
muscles, the lateralis caudae (pigeons: 8 electrodes, 4 birds; turkeys: 10, 6) and the bulbi rectricium (pigeons: 9, 5; turkeys: 9, 5), and from the pectoralis (pigeons: 10, 5; turkeys: 1, 1).
Larvae are distinguished from other pleuronectid genera by the following combination of characters: dorsal and anal finfold pigment present, 1-3 postanal bars (2-4 distinctive pigment regions along dorsal midline), a series of ventral midline melanophores, absence of slashlike hypaxial
pigment along the postanal body, few to many pigment spots around the notochord tip, and 37-44 total myomeres (Table 12).