Characters | Processidae | Hippolytidae |
---|---|---|
Number of recognized species | 68 | 318 |
Number of species with first zoeal stage known | 15 | 66a |
Dorsal tubercles on carapace | Absent or 1 | Absent, 1 or 2 |
Distance between bases of antennules in relation to width of each antennuleb | Longer | Shorter |
Plumose setae on antennal scale | 11 or 12 | 9–14 |
Plumose setae on scaphognathite | 5 | 3–35 |
Abdominal segments with dorsolateral spines | 4 and 5, or only 5 | Absent, 4 and 5, or only 5 |
Pereiopod buds | 1 or 2 | Absent or 1–5 |
Pairs of setae on telson | 7 | 7–10 |
Abbreviated development | Not reported | Present |