Open Access Open Access  Restricted Access Subscription or Fee Access


DOI: http://dx.doi.org/10.11646/zootaxa.3635.5.1

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

JULIANA CRISTINA BERTACINI DE MORAES, SÉRGIO LUIZ DE SIQUEIRA BUENO

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. paulen-sis 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.


Keywords


Appendages morphology, pore sensilla, postembryonic development, setae morphology

Full Text:

PDF/A (2,300 KB)

Refbacks

  • There are currently no refbacks.


 
ISSN 1175-5326 (Print Edition) & ISSN 1175-5334 (Online Edition)
Published by Magnolia Press, Auckland, New Zealand
A founding journal of Biotaxa