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Table 2 Comparison of some characters of Zoea I from families Processidae and Hippolytidae

From: First zoeal stage of Processidae (Decapoda, Caridea): review and new descriptions of Ambidexter symmetricus Manning and Chace 1971 and Processa fimbriata Manning and Chace 1971

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

  1. Data for latter family from Terossi et al. (2010), a until 2010; b according to Ortega et al. (2005). Number of recognized species according to De Grave and Fransen (2011)