penial การใช้

• Vas deferens is adhering to and partially inside the penial complex.
• Flagellum has ca . 1 / 5 the total length of the penial complex.
• Penial gland has very variable shape, usually a few branches or a single long branch.
• There are 4 branched mucus glands around the vagina and penis is with penial appendix at its base.
• "Triodopsis platysayoides " was confirmed as a valid species with a unique penial morphology in 1988.
• The penial stylet is about 600 ?m long and corkscrew-like coiled with one and a half spirals.
• This stylet can be partly retracted into the penial muscle that is able to evert to a certain extent.
• The penis, the basal finger and parts of the ejaculatory and paraprostatic ducts are surrounded by a thin-walled penial sheath.
• It is connected by the paraprostatic duct to the muscular basal finger, which is united to the penial muscle mass at its base.
• Apparently, specific differences exist in the penial complex, but present data are insufficient to allow any recognition of species groups through anatomical characters.
• Also unlike in " Deroceras invadens ", the penial glands are knobbly and attach closer to the caecum than to the lobe.
• The love dart is not a penial stylet ( in other words this is " not " an accessory organ for sperm transfer ).
• The vas deferens appears as a long, more or less uniformly thin duct which merges into a penis which is included within the penial sheath.
• When an appending penial gland, an accessory structure part of the male reproductive system, is present, it is also briefly everted during mating.
• The " relatively small " and " bulbous " penis is purple-brown in color at the apex, and the branching penial appendage is white.
• In the male, the penis has a long glandular strip on the terminal lobe, a long penial gland, and three shorter dorsal glandular strips.
• His other research interests are on the anti-inflammatory properties of earthworms, the ultrastructure of the penial setae of earthworms, and the electrical bioluminescence of earthworms.
• They differ however in the genitalia, primarily in the presence ( " Orculella " ) or absence ( " Schileykula " ) of a penial appendix.
• Internal structure of penial complex is with longitudinal folds in proximal part of penis, changing into a dense tubular network and a widened lumen in the distal part of the penis.
• The prepuce is thicker, around twice as wide as the penis sheath at the point of insertion of the penial sheath and gradually narrowing to terminate in the male genital pore.