title: Description of the newly-hatched juvenile of Aegla paulensis (Decapoda, Anomura, Aeglidae).
abstract: The postembryonic development of Aegla paulensis is epimorphic (= direct), in which the hatching form is a juvenile that morphologically resembles the adult. Hatching is asynchronous, taking 3-5 days for all juveniles from a single brood to hatch. This paper provides a complete description of the external morphology of the newly-hatched juvenile of A. paulensis as analyzed through light microscopy (LM) and scanning electron microscopy (SEM). One of the striking features ob- served in the newly-hatched juvenile of A. paulensis was the presence of four pairs of rudimentary pleopods, a trait never described before in early juveniles of Aegla. Additional novelties include three unique types of setae and two types of pore sensilla.
authors.affiliation: Department of Zoology, Institute of Biosciences, University of Sao Paulo, Rua do Matão, travessa 14 no. 101, Sao Paulo, Brazil, 05508090. jcbm@ib.usp.br
authors.forename: Juliana Cristina Bertacini
authors.initials: JC
authors.lastname: De Moraes
authors.forename: Sérgio Luiz De Siqueira
authors.initials: SL
authors.lastname: Bueno
mesh_terms: D000818:Animals; D033364:Decapoda / Q000145:classification* / Q000254:growth & development / Q000648:ultrastructure*; D013045:Species Specificity