@article{oai:ir.kagoshima-u.ac.jp:00012770,
 author = {NAKAMURA, Kaworu and BABA, Kazuo},
 journal = {鹿児島大学水産学部紀要=Memoirs of Faculty of Fisheries Kagoshima University},
 month = {2016-10-31},
 note = {Post-embryonic development was observed for the freshwater shrimp, Palaemon paucidens, under
19-25°C. The 1st antenna showed a biramous type at the egg-nauplius period of 60-80 hours after
spawning. It returned to an uniramous type after that and continued its development as it was since
appearances of the 1st maxilla and successors at 104 hours after spawning. The 2nd antenna
showed also as the 1st antenna the biramous at the egg-nauplius period, however, continued its
development without returning to the uniramous after that. Both of the antennae developed mainly
their length towards the posterior pole during their early period of development until about 6th day,
showing almost no expansion of width. Since about 7th day, especially at the distal ends of
antennae, expansive development was recognized, accompanying with the annulus formation. The
formation of annuli began surely at the distal at least in the case of antennae, and at 17th day just
before hatching the 1st and 2nd antennae possessed 3 and 2 annuli, respectively. Each of the head
ganglions differentiated in the proximal areas of the optic lobe, 1st and 2nd antennae at 50 hours after
spawning. The fore-brain became to be formed firstly by approaching and fusion of each paired
ganglion of the proximal of the optic lobe at 176 hours after spawning. At 14th day, the mid- and
hind-brains were formed by the same procedure as the former except their origin. The mid- and
hind-brains derived from each proximal of the 1st and 2nd antennae, respectively. The hind-brain
held the fore-gut between its paired posterior portion. It took about 18 days during the embryonic
development.},
 pages = {125--139},
 title = {Observations of the Development of the Post-Embryo of the Shrimp, Palaemon Paucidens},
 volume = {31},
 year = {}
}