| Cherax destructor Clark, 19361) | Engaeus cisternarius Suter, 19772) | Parastacus brasiliensis (von Martens, 1869) 3) | Parastacus nicoleti (Philippi, 1882) 4) | Parastacus pugnax (Poeppig, 1835) 5) | |
|---|---|---|---|---|---|
| Stage I | |||||
|
1) Present studs, 2) Suter (1977). 3) Noro et al. (2005), 4) Rudolph and Zapata (1986), 5) Rudolph and Rios (1987). Italic tspe shows the diagonistic characters for each famils and Roman tspe the apomorphic characters in the four families. |
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| Ese | Stalk absent | Stalk absent | Stalk absent | Stalk absent | Stalk absent |
| Carapace | Rostrum bent downward, carapace globular without setae | Rostrum bent downward, carapace globular without setae | Rostrum bent downward, carapace globular without setae | Rostrum bent downward, carapace globular without setae | Rostrum bent downward, carapace globular without setae |
| Antenna 1 | Seta absent, internal and external flagellum both with 8 segments | Seta absent, internal and external flagellum with 3–5 segments | Seta absent, internal and external flagellum with 4–6 segments | Seta absent internal and external flagellum with 3–4 segments | Seta absent internal and external flagellum with 4–6 segments |
| Antennal scale | Seta absent | Seta absent | Seta absent | Seta absent | Seta absent |
| Antenna 2 | Seta absent, flagellum with 26–28 segments | Seta absent flagellum with 25 segments | Seta absent flagellum with 28–30 segments | Seta absent flagellum with 23 segments | Seta absent flagellum with 23 segments |
| Mandible | Dentition absent | Dentition absent | Dentition absent | Dentition absent | Dentition absent |
| Maxilla 1 | Seta absent | Seta absent | Seta absent | Seta absent | 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 | Seta on distal end of exopodite absent |
| Pereiopod tip | Recurved hook | Recurved hook | Recurved hook | Recurved hook | Recurved hook |
| Pereiopod | Seta absent | Seta absent | Seta absent | Seta absent | Seta absent |
| Pleopod | Seta absent | Seta absent | Seta absent | Seta absent | Seta absent |
| Telson | Sub-rectangular with rounded border, devoid of setae | Sub-rectangular with rounded border | Sub-rectangular with rounded border | Sub-rectangular with rounded border | Sub-rectangular with rounded border, dorsomarginal small tubercles |
| Stage II | |||||
| Ese | Stalk present | Stalk present | Stalk present | Stalk present | Stalk present |
| Rostrum | Rostrum slightly developed without setae, carapace less globular | Rostrum slightly developed without setae,carapace less globular | ? | Rostrum slightly developed without setae, carapace less globular | Rostrum slightly developed without setae, carapace less globular |
| Antenna 1 | Seta absent, internal and external flagellum both with 8–9 segments | Seta absent, internal and external flagellum both with 6 segments | Seta absent,internal and external flagellum with 6–8 segments | Seta absent, internal and external flagellum with 5–6 segments | Seta absent, internal and external flagellum both with 6–9 segments |
| Antennal scale | Seta absent | Seta absent | Seta absent | Seta absent | Seta absent |
| Antenna 2 | Seta absent, flagellum with 39–41 segments | Seta absent, flagellum with 29 segments | Seta absent, flagellum with 34 segments | Seta absent, flagellum with 29 segments | Seta absent, flagellum with 31 segments |
| Mandible | Dentition present | Dentition present | Dentition present | Dentition present | Dentition present |
| Maxilla 1 | Seta present | Seta present | Seta present | Seta? | Seta? |
| Maxilla 2 | Scaphognathite with 3 longer setae on distal part | Scaphognathite with 3 longer setae on distal part | Scaphognathite with 3 longer setae on distal part | Scaphognathite with 1 longer plumose seta on distal part | Scaphognathite with 1 longer plumose seta on distal part |
| Maxilliped | Setae on distal end of exopodite absent | Setae on distal end of exopodite absent | Setae on distal end of exopodite absent | Setae on distal end of exopodite absent | Setae on distal end of exopodite absent |
| Pereiopod tip | Re-curved spine | Re-curved spine | Re-curved spine | Re-curved spine | Re-curved spine |
| Pereiopod | Seta present | Seta present | Seta present | Seta present | Seta present |
| Pleopod | Long seta absent | Long seta absent | ? | ? | ? |
| Telson | Sub-rectangular with rounded border, dorsomarginal 20 tubercles | Sub-rectangular with rounded border, dorsomarginal tubercles | Sub-rectangular with rounded border,devoid of setae | Sub-rectangular with rounded border,devoid of setae | Sub-rectangular with rounded border, dorsomarginal tubercles |
| Stage III | |||||
| Antenna 1 | Seta present | Seta present | Seta present | Seta present | Seta present |
| Antennal scale | Seta present | Seta present | Seta present | Seta present | Seta present |
| Antenna 2 | Seta present | Seta present | Seta present | Seta present | Seta present |
| Maxilla 1 | Seta present | 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 | Setae on distal end of exopodite present |
| Pereiopod tip | Curved spine | Curved spine | Curved spine | Curved spine | Curved spine |
| Pleopod | Seta present | 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 | Segmented with long plumose setae |