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Saussure, 1857

Zoea [no illustration available]
¥ Number of stages in the zoeal phase: 4.
¥ Morphological characters of first zoea [Table 11 First zoeae of Xanthidae]:
Carapace with medio-dorsal knob.
Carapace with lateral spines.
Abdominal somites 3-5 with a sharp postero-lateral process.
Antennule with 3 aestetascs and 1 seta.
Antenna type B (type B).
Maxillule endopod setation: 1, 6.
Maxillule scaphognatite with 3 plumose seate.
Maxillliped 1 basis and endopod setation: 10; 3, 2, 1, 2, 5.
Maxillliped 2 basis and endopod setation: 4; 1, 1, 5.
Furcae of telson with spinulose surface.
Telson furcae with 1 dorsal, 2 outer and no inner spines.

Megalopa [Panopeus occidentalis]
¥ Number of stages in the megalopal phase: 1.
¥ Morphological characters of megalopa [Table 18 Mgp Xanthidae]:
Rostrum short, deflected ventrally.
Carapace smooth.
Maxillule (mx1) endopod setation: 5.
Maxilla (mx2) endopod setation: 1(2).
First maxilliped (mxp1) epipod setation: 1(2).
Third maxilliped (mxp3) epipod setation: 6(7).

Larval stages described by Ingle, 1985.

Geographical distribution of adult
Occidental Atlantic: North Carolina to Florida, Gulf of Mexico, The West Indies, Central America, northern South America, Guianas and Brazil (Ceará to Santa Catarina).

Depth range of adult
Intertidal zone - 20 m.

Panopeus occidentalis