Sex chromosome differentiation in Parapercis sexfasciata (perciformes, pisces).

Parapercis randalli, a new sandperch (Pisces: Pinguipedidae) from Southern Taiwan

Parapercis randalli sp. nov. is described on the basis of four specimens collected in southern Taiwan by angling at a depth of 5–150 m. It differs from its congeners in having five broad reddish brown saddles on the dorsal surface; both jaws and anterior portion of snout reddish orange; a yellow bar with red margin on cheek; a series of 8 red bars below body axis; configuration of spots on head...

Redescription of Parapercis macrophthalma (Pietschmann, 1911) and description of a new species of Parapercis (Pisces: Pinguipedidae) from Taiwan.

Parapercis macrophthalina is confirmed as a valid species and redescribed on the basis of the holotype and other specimens collected from the type locality, Taiwan, and Japan. It is morphologically similar to P. muronis Tanaka, 1918, but differs in having five vertical transverse bars that extend well below the lateral line versus five oblique transverse bars, with the third to fifth bars endin...

Sex differentiation in goat fetus

Reproduction in domestic animals, as a major source of food and other products for human, has greatimportance and study of related subjects including sex differentiation and gonadogenesis during fetal life can solve many questions on normal development and various disorders of urogenital system. Since studies on sex differentiation in goat fetus are scarce, this study was performed. Twenty-five...

Karyotype and Sex-Chromosome Polymorphism in Nesokia indica, from Iran

Sex chromosome differentiation in Belostoma (Insecta: Heteroptera: Belostomatidae).

Belostoma, a genus of the family Belostomatidae, includes species of great ecological importance as biocontrol agents. Few species of these species have been the subject of cytogenetic analyses. Karyotypic evolution in this genus involves agmatoploidy and simploidy; there are also different sex chromosome systems. We examined two Belostoma species (B. dilatatum and B. candidulum) collected from...