(Dana, 1851)
Zoea [Acanthonyx scutiformis 1] ¥ Number of stages in the zoeal phase: 2. ¥ Morphological characters of first zoea [Table 6 First zoeae of Majidae]: Carapace with one rostral and one dorsal spine. Abdominal somite 2 with, and somite 3 without, dorsolateral projections. Abdominal somites without postero-lateral processes. Number of marginal and apical setae on scaphognathite: 11 and 1.
Megalopa [Acanthonyx scutiformis] ¥ Number of stages in the megalopal phase: 1. ¥ Morphological characters of megalopa [Table 17 Mgp Majidae Parthenopidae]: Rostrum deflected ventrally. Carapace smooth. Maxillule (mx1) endopod setation: 1, 1. Maxilla (mx2) endopod setation: 0. First maxilliped (mxp1) epipod setation: 6. Third maxilliped (mxp3) epipod setation: 3.
Larval stages described by Hiyodo et al., 1994.
Geographical distribution of adult Occidental Atlantic: Brazil (Espírito Santo to So Paulo).
Depth range of adult Intertidal zone. |