The results of quantitative and qualitative starvation experiments with Nausithoe auera polyps in natural and artificial seawater were compared. For this study, Scyphistomae growing on stony coral debris in the São Sebastião Channel (Brazil) were sampled by SCUBA divers. The data obtained reinforce the hypothesis about rearing differences between natural and artificial seawater. Some polyps showed better results in natural seawater than those in artificial seawater, with the former but not the latter surviving until the end of the experiment (155 days). These results suggest that Coronatae polyps use dissolved organic matter, which contributes to the survival of Nausithoe auera polyps. During the experiments, the reaction of individual scyphistoma to gentle stimulation with forceps in the middle part of the periderm tube was also observed

Mediante resultados cuali y cuantitativos se comparan experimentos sin alimento de pólipos de Nausithoe auera en agua de mar natural y artificial. Se utilizaron pólipos colectados sobre restos de corales en la región del canal de São Sebastião (Brasil) mediante buceo autónomo con SCUBA. Se comprobaron diferencias en el cultivo entre los métodos utilizados. Algunos pólipos cultivados en agua natural mostraron mejores condiciones que los cultivados en agua artificial. Los pólipos en agua natural llegaron hasta el final de los experimentos (155 días), mientras que los cultivados en agua artificial no sobrevivieron hasta el final. Estos resultados sugieren el uso de materia orgánica disuelta por pólipos de Coronatae, la cual contribuye a mantener vivos los pólipos de N. aurea. Durante los experimentos se observó la reacción de los escifistoma frente a estímulos efectuados en la parte media del peridermia

Uma lista dos Cnidaria Medusozoa marinhos do Brasil foi composta a partir de registros de ocorrência disponíveis na literatura. Até o momento, há um total de 373 espécies registradas para o Brazil: 347 de Hydrozoa, 3 de Cubozoa e 23 de Scyphozoa.

Literature records were reviewed to compile a list of species of the marine taxa of Cnidaria Medusozoa recorded for the Brazilian coast. The total number of species of medusozoans so far recorded for Brazil is 373: 347 Hydrozoa, 3 Cubozoa: 23 Scyphozoa.