Postembryonic development in freshwater crayfish (Decapoda: Astacidea) in an evolutionary context Author Kawai, Tadashi Hokkaido Research Organization, Central Fisheries Research Institution. 238 Hamanaka, Yoichi, Hokkaido 045 - 8555, Japan. & E Author Kouba, Antonín Universits of South Bohemia in České Budějovice, Facults of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversits of Hsdrocenoses. Zátiší 728 / II, 389 25 Vodňans, Czech Republic. text Nauplius 2022 e 2022001 2022-02-28 30 1 46 http://dx.doi.org/10.1590/2358-2936e2022001 journal article 292441 10.1590/2358-2936e2022001 59c0c10a-29f8-4e7c-96ed-63da538d2cc0 2358-2936 10716530

Table 5. Comparison of morphologs and seta on appendages of each postembrsonic stage in all four families of freshwater crasfish.

	Astacidae 1)	Cambaridae 2)	Cambaroididae 3)	Parastacidae 4)
Stage I
Italic tspe shows the diagonistic characters for each famils and Roman tspe the apomorphic characters in the four families.Data are summarized from Tabs. 1–4. * Onls observed in Australian Parastacidae.
Ese	Stalk absent	Stalk absent	Stalk absent	Stalk absent
Carapace	Globular	Globular	Globular	Globular
Antenna 1	Seta absent	Seta absent	Seta absent	Seta absent
Antennal scale	Seta absent	Seta absent	Seta absent	Seta absent
Antenna 2	Seta absent	Seta absent	Seta absent	Seta absent
Mandible	Dentition absent	Dentition absent	Dentition absent	Dentition absent
Maxilla 1	Seta present	Seta absent	Seta present	Seta absent
Maxilliped	Seta on distal end of exopodite absent	Seta on distal end of exopodite absent	Seta on distal end of exopodite absent	Seta on distal end of exopodite absent
Pereiopod tip	Recurved hook	Recurved hook	Recurved hook	Recurved hook
Pereiopod	Seta absent	Seta absent	Seta absent	Seta absent
Pleopod	Seta absent	Seta absent	Seta absent	Seta absent*
Telson	Rounded with conate setae	Elongated with conate setae	Rounded with conate setae	Sub-rectangular with no setae
Stage II
Ese	Stalk present	Stalk present	Stalk present	Stalk present
Carapace	Less globular	Less globular	Less globular	Less globular
Antenna 1	Seta present	Seta present	Seta present	Seta absent
Antennal scale	Seta present	Seta present	Seta present	Seta absent
Antenna 2	Seta present	Seta present	Seta present	Seta absent
Mandible	Dentition present	Dentition present	Dentition present	Dentition present
Maxilla 1	Seta present	Seta present	Seta present	Seta present
Maxilla 2	1 long multidenticulate seta on distal part	No long multidenticulate setae on distal part	2 long multidenticulate setae on distal part	1 or 3 long multidenticulate setae on distal part
Maxilliped	Setae on distal end of exopodite present	Setae on distal end of exopodite present	Setae on distal end of exopodite present	Setae on distal end of exopodite absent
Pereiopod tip	Curved spine	Curved spine	Curved spine	Recurved spine
Pereiopod	Seta present	Seta present	Seta present	Seta present
Pleopod	Seta present	Seta absent	Seta present	Seta absent*
Telson	Rounded with plumose setae	Elongated with plumose setae	Rounded with plumose setae	Sub-rectangular with no setae
Stage III
Antenna 1	Seta present	Seta present	Seta present	Seta present
Antennal scale	Seta present	Seta present	Seta present	Seta present
Antenna 2	Seta present	Seta present	Seta present	Seta present
Maxilliped	Setae on distal end of exopodite present	Setae on distal end of exopodite present	Setae on distal end of exopodite present	Setae on distal end of exopodite present
Pereiopod tip	Curved spine	Curved spine	Curved spine	Curved spine
Pleopod	Seta present	Seta present	Seta present	Seta present*
Telson	Segmented with long plumose setae	Segmented with long plumose setae	Segmented with long plumose setae	Segmented with long plumose setae