ON HERMAPHRODITISM IN VIVIPAROUS OPHIURIDS

Hermaphroditism

Evolutionary perspectives on hermaphroditism in fishes.

Hermaphroditism is a derived and polyphyletic condition in fishes, documented in about 2% of all extant teleost species scattered across more than 20 taxonomic families in 9 orders. It shows a variety of expressions that can be categorized into sequential and synchronous modes. Among the sequential hermaphrodites are protogynous species in which an individual begins reproductive life as a femal...

On the Atypical Male and Female Sex-Ensemble (So-Called Hermaphroditism and Pseudo-Hermaphroditism)

has celebrated. This poetical and transcendental idea has so dominated the lay and scientific mind that even now the question of hermaphroditism in the mammalia is discussed and supported by the description of specimens with alleged ova and spermatozoa in a common sex gland, or of those where the opposite sex-duct element is unduly represented at the expense, we shall see, of the potent normal ...

Child with True Hermaphroditism

True hermaphrodites possess both ovarian and testicular tissues which may be present in separate gonads or combined in an ovotestis. External and internal genitalia are ambiguous and variable, though a prominent penial structure is usual. Chromosome examination of true hermaphroditism has revealed an XX sex chromosome complement in the majority of cases, but the XY complement and different mosa...

True Hermaphroditism in Chimaeric Mice.