Description of the newly-hatched juvenile of Aegla paulensis (Decapoda, Anomura, Aeglidae)

作者：Bertacini De Moraes Juliana Cristina; De Siqueira Bueno Sergio Luiz

来源：Zootaxa, 2013, 3635(5): 501-519.

DOI：10.11646/zootaxa.3635.5.1

• Appendages morphology
• pore sensilla
• postembryonic development
• setae morphology

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 observed 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.

• 出版日期2013-4-2