Larval development of Notolopas brasiliensis Miers, 1886 (Brachyura: Majoidea: Pisidae) described from laboratory reared material and a reappraisal of the characters of Pisidae

Abstract

The complete larval stages of Notolopas brasiliensis are described from laboratory reared material, with emphasis on the external morphological features of Majoidea, and compare the morphology of N. brasiliensis with other genera of Pisidae. Larval development of N. brasiliensis consists of two zoeal stages and one megalopa. The duration mean of each zoeal stage was 4.2 ± 1.0 days for Zoea I and 3.8 ± 0.7 days for Zoea II, the megalopa instar appearing 8.1 ± 0.4 days after hatching. The characters previously used to define larval forms of Pisidae are either symplesiomorphic or potentially highly homoplastic. As well, was observed that there are no common sets of larval characters that would define Pisidae nowadays. However, was showed that only a combination of characters could differentiate Notolopas from other pisid genera.

The larval development of the spider crabRochinia gracilipes(Crustacea: Majoidea: Epialtidae: Pisinae) reared in the laboratory

“…spinosa Salman, 1982 and Naxioides serpulifera Rathbun, 1914 = Paranaxia serpulifera. This new comparison of larval morphologies corroborates the previous assertion that larvae of Pisinae are morphologically heterogeneous and that this subfamily cannot be defined on the basis of larval characters (Santana et al 2004(Santana et al , 2006, and suggests that larval morphology would not help to accurately understand the phylogenetic relationships of this subfamily of spider crabs.…”

“…Developmental stages are abbreviated 1, 2 (zoeas 1 and 2), M (megalopa) and C (first crab). Source Stage described Anamathia rissoana (Roux 1828) Guerao and Abelló (1996) 1 Apiomithrax violaceus (A. Milne-Edwards 1868) Santana et al (2004) 1 -2-M-C Doclea muricata (Herbst 1788) Krishnan and Kannupandi (1987), Ghory and Siddiqui (2009) 1-2-M Doclea rissoni Leach 1815, as D. gracilipes Krishnan and Kannupandi (1988) 1 -2-M-C Goniopugettia sagamiensis (Gordon 1930) Taishaku and Konishi (2001) 1 -2-M-C Herbstia condyliata (Fabricius 1787) Guerao et al (2008) Boschi and Scelzo (1968), Clark et al (1998b) 1 -2-M-C Lissa chiragra (Fabricius 1775) Guerao et al (2003) 1 -2-M-C Notolopas brasiliensis Miers 1886Santana et al (2006 1 -2-M Pisa armata (Latreille 1803) Ingle and Clark (1980) 1 -2-M-C Pisa tetraodon (Pennant 1777) Rodríguez (1997) 1 -2-M-C Pisoides bidentatus (A. Milne-Edwards 1873) Kornienko and Korn (2007) 1 -2 M Pisoides edwardsii (Bell 1835) Fagetti (1969b) 1 -2-M Rochinia carpenteri (Thomson 1873) Ingle (1979) 1 -2-M Rochinia debilis Rathbun 1932 Komatsu and Takeda Figure 1A, B). Globose, smooth, without tubercles.…”

“…Previous comparisons of Pisinae larvae (Santana et al 2004(Santana et al , 2006 included species that are now considered to be within Majidae: Eurynolambrus australis Webber and Wear, 1981, Eurynome aspera Kinahan, 1858;E. spinosa Salman, 1982 and Naxioides serpulifera Rathbun, 1914 = Paranaxia serpulifera.…”

Morphology of the complete embryonic and larval development of commercially important mud crab Scylla paramamosain

“…The larvae with fewer zoeal stages show a relatively shorter life history. For instance, at 23°C–25°C, the duration of Notolopas brasiliensis with two zoeal stages (Santana et al, 2006) was 8 days, while the duration of Charybdis japonica with six zoeal stages (Yan et al, 1989) was 21–23 days at 23°C–27°C. In our study, the larval development of S. paramamosain contained five zoeal stages and one megalopal stage, which was consistent with previous studies (Huang & Li, 1965; Zeng et al, 2001).…”