| In this paper the taxonomic status of Chinese bisexual and parthenogenetic Artemia was examined. Morphological observations and cross-breeding tests were employed as main methods. Comparing with 4 species from the other area, the morphology of frontal knobs and penis of 9 Chinese bisexual Anemia populations were considered. Based on the observations conducted by me and other scholars each of the bisexual species, including the Chinese bisexual Artemia, possess special morphological pattern of the frontal knob and penis, and the morphology of the frontal knob and penis can be used to separate them. At the same time the cross-breeding tests were conducted between the population of SIN (the representative population of A. sinica) and other Chinese populaions. Furthermore the reproductive isolation between A. sinica and A. urmiana, and that between A. sinica and A. tibetiana were reconsidered. The results of cross-breeding tests were in accord with that of morphological observations. Based on the knowledge gained from morphological researches two works were performed: one is the morphological observations on rare males derived from Chinese parthenogenetic populations, the other is the identification and description of the introduced bisexual Artemia in Chinese coastal salterns. Allow with these two works the cross-breeding tests were conducted.The main results are shown as follows:161 Cross-breeding tests among the Chinese bisexual populationsCross-breeding tests between the population of SIN (the representative population of A. sinicd) and the populations from Tibet, Xinjiang and Inner Mongolia were conducted. Infertility were detected among the crosses conducted between SIN population and the populations from Tibet, Xinjiang, and the crosses between SIN population and ALXZ population from Inner Mongolia. The infertility occurs in the F2 generation, 60% or more FI crosses were found to be infertile. In the cross-breeding tests conducted between SIN population and URM population (the representative population of A. urmiand) infertility occurs in the FI generation, only half of the F] Crosses produced offspring, and there is obvious hybrid breakdown in p2 generation. Based on the results A. tibetiana is an invalid species and except its type locality Lagkor Co it seems have more localities. The genetic relationship among the Chinese populations is nearer than that between the Chinese populations and URM population.2 The morphology of the frontal knobs and penes of the Chinese bisexual Anemia populationsthe morphology of frontal knobs and distal penes of 9 Chinese Anemia populations are examined and a comparison is made with the populations representing the species Artemia urmiana, Anemia salina, Anemia franciscana and Artemia persimilis. Frontal knobs of the Chinese populations and A. urmiana are elliptic (in the frontal view), and the number and distribution of knob spines vary among the Chinese populations. In Chinese populations the distal penis is a tube ending in a finger-like tip. This is similar with A. urmiana, A. salina, A. franciscana, but different from A. persimilis. In A. persimilis the distal penis is composed of two distinct regions: a cylindrical proximal portion and a tapering16terminal portion that might correspond to the finger-like tip of other species. The distal penes of these 9 Chinese Anemia populations possess spines that can be divided into three groups: posterior spines, exo-lateral spines and comb-like spines. In the other four species, however, the comb-like spines are absent and the number of spines is much smaller than that of the Chinese populations. Posterior spines are larger than exo-lateral spines in Chinese populations and A. urmiana, while in A. salina, A. franciscana and A. persimilis posterior spines and exo-lateral spines have the similar sizes. Several morphometric characters of the frontal knob and penis were examined among the Chinese populations and discriminant analysis was performed. The results of discriminant analysis show that there is app...
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