(Latreille, 1825)
Zoea [Microphrys bicornutus 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; six posterolateral setae present.
Abdominal somite 2 with, and somite 3 without, dorsolateral projections.
Abdominal somites 3 and 4 with postero-lateral processes.
Number of marginal and apical setae on scaphognathite: 12(13) and 1.
Megalopa [Microphrys bicornutus]
¥ Number of stages in the megalopal phase: 1.
¥ Morphological characters of megalopa [Table 17 Mgp Majidae Parthenopidae]:
Rostrum deflected ventrally.
Carapace with protuberances.
Maxillule (mx1) endopod setation: 0.
Maxilla (mx2) endopod setation: 0.
First maxilliped (mxp1) epipod setation: 5.
Third maxilliped (mxp3) epipod setation: 5.
Larval stages described by Hartnoll, 1964; Gore et al., 1982.
Geographical distribution of adult
Occidental Atlantic: North Carolina to South of Florida, Bermuda, Gulf of Mexico, The West Indies, Central America, Venezuela and Brazil (Maranho to Rio Grande do Sul; Fernando de Noronha).
Depth range of adult
Intertidal zone - 70 m.