Tanaidacea from Brazil. II. A revision of the subfamily Hemikalliapseudinae (Kalliapseudidae; Tanaidacea; Crustacea) using phylogenetic methods

摘要

Based on recently collected material from Brazil the subfamily Hemikalliapseudinae is revised using phylogenetic methods and including ontogenetic observations. Due to the homoplastic nature of many family or subfamily characters, this analysis includes taxa from the family Kalliapseudidae as well as from other Apseudomorphan families (Apseudidella, Apseudidae, Parapseudidae and Sphyrapodidae). Gigantapseudes is chosen as an outgroup. According to this analysis the family Kalliapseudidae, the Kalliapseudinae and Hemikalliapseudinae are monophyletic but the subfamily Tanapseudinae is not monophyletic. Thaicungella currently residing in the Parapseudidae is transferred to Kalliapseudidae on the basis of this analysis. Male, female and manca I of a newspecies of the genus Acutihumerus, A. petronius, are described. The species Bacescapseudes patagoniensis is restored but moved to genus Acutihumerus. The genus Longipedis (Parapseudidae) is removed from Saltipedis and restored. Comments on the ontogenyof the pereopodal exopod are included.