Desenvolvimento larval de Eriphia gonagra (Fabricius, 1781) (Decapoda, Xanthidae), em laboratório

Abstract

The post-embryonic development of lhe crab from lhe north coast of São Paulo State, Eriphia gonagra (Fabricius) was studied in laboratory. The experiments were performed in a c/imatically controlled room at 24±1 oe at a salinity of 36%0 and the animais were fed with newly hatched Artemia salina nauplii.The larval development of E. gonagra comprises 4 stages of zoea and one megalopa. Ali larval stages are iIIustrated and described in detail.The main morphological charaçters that allow the identijication of the zoeae and megalopae of E. gonagra are analyzed with respect to other Brasilian species of lhe family Xanthidae.

The complete larval development of Armases benedicti (Rathbun) (Decapoda, Sesarmidae), from the Amazon region, reared in the laboratory

“…This characteristic is similar in other species belonging to the genus Sesarma: S. curacaoense described by ANGER et al (1995) and S. rectum by FRANSOZO & HEBLING (1986) as showed in table IV. Other important differences can be found in the station of scaphognathite of maxilla in the megalopas of A.…”

“…The zoeal setation 2+2 (shown in the table II) of the endopod of the maxilla of A. benedicti is not observed in the other species described by DIAZ & EWALD (1968) and CUESTA & ANGER (2001), in which this structure shows a pattern of 2+3 setae. But, similar features are observed in the Sesarma species (FRANSOZO & HEBLING 1986, ANGER et al 1995. The number of aesthetascs and setae of the A. benedicti antennule are similar to A. rubripes, which have three aesthetascs and one simple seta, while A. angustipes shows three aesthetascs and two simple setae.…”

Comparative morphology of the first zoea of twelve brachyuran species (Crustacea: Decapoda) from the Amazon region

“…Unlike the description of S. curacaoense, our description of S. rectum differs in several respects from the one previously given by FRANSOZO & HEBLING (1986). The latter did not report the presence of a pair of posterodorsal setae, and two pairs of simple setae on the anterodorsal portion of the carapace, as well as the following features: two rows of unequal spines on the antennal protopod, cuspidate and plumodenticulate setae on the basial endite, and plumodenticulate and simple setae on the coxal endite of the maxillule.…”

Larval development of Hexapanopeus paulensis Rathbun, 1930 (Crustacea, Brachyura, Xanthidae) under laboratory conditions

“…Of these, only Panopeus herbstii, Hexapanopeus angustifrons, Pilumnus dasypodus, Menippe. nodi/rons, Eurytium limosum, Panopeus occidentalis, Panopeus bennudensis, Panopeus americanus, Eurypanopeus abbreviatus, Eriphia gonagra and Fanopeus austrobesus, have been studied with reference to the larval development by, respectively, Costlow & Bookhout (1961,1966, Sandifer (1974), Scotto (1979), Kurata et al (1981), Ingle (1985), Martin et al (1985), Negreiros-Fransozo (1986, 1986a, Fransozo (1987) and Monru et al (1988).…”