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Pontoscolex
''Pontoscolex'' is a genus of earthworms in the family Glossoscolecidae, or alternatively, in the family Rhinodrilidae. General characteristics The type species ''Pontoscolex corethrurus'' has a circumtropical distribution, although it originates in the Neotropics, probably in the Guiana Shield, Guiana Plateau. It reproduces Parthenogenesis, parthenogenetically, and under experimental conditions can complete its life cycle in about one year. Adults measure in length. Diagnostic characteristics There are eight setae per segment, arranged in regular rows, at least in the anterior part of the animal, whereas in the posterior part the arrangement varies (regular, more or less irregular, or in quincunx). No pigment is usually present. Male pores and tubercula pubertatis are in the Clitellum, clitellar region. The gizzard is in the segment VI. Three pairs of calciferous glands of tubular-dichotomous (panicled) structure are in the segments VII–IX. Earthworm#Form and function, Dorsa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pontoscolex Lilljeborgi
''Pontoscolex'' is a genus of earthworms in the family Glossoscolecidae, or alternatively, in the family Rhinodrilidae. General characteristics The type species '' Pontoscolex corethrurus'' has a circumtropical distribution, although it originates in the Neotropics, probably in the Guiana Plateau. It reproduces parthenogenetically, and under experimental conditions can complete its life cycle in about one year. Adults measure in length. Diagnostic characteristics There are eight setae per segment, arranged in regular rows, at least in the anterior part of the animal, whereas in the posterior part the arrangement varies (regular, more or less irregular, or in quincunx). No pigment is usually present. Male pores and tubercula pubertatis are in the clitellar region. The gizzard is in the segment VI. Three pairs of calciferous glands of tubular-dichotomous (panicled) structure are in the segments VII–IX. Dorsal, ventral, supra- and subesophageal and subneural vessels are pre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pontoscolex Kuneguara
''Pontoscolex'' is a genus of earthworms in the family Glossoscolecidae, or alternatively, in the family Rhinodrilidae. General characteristics The type species '' Pontoscolex corethrurus'' has a circumtropical distribution, although it originates in the Neotropics, probably in the Guiana Plateau. It reproduces parthenogenetically, and under experimental conditions can complete its life cycle in about one year. Adults measure in length. Diagnostic characteristics There are eight setae per segment, arranged in regular rows, at least in the anterior part of the animal, whereas in the posterior part the arrangement varies (regular, more or less irregular, or in quincunx). No pigment is usually present. Male pores and tubercula pubertatis are in the clitellar region. The gizzard is in the segment VI. Three pairs of calciferous glands of tubular-dichotomous (panicled) structure are in the segments VII–IX. Dorsal, ventral, supra- and subesophageal and subneural vessels are pre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pontoscolex Hystrix
''Pontoscolex'' is a genus of earthworms in the family Glossoscolecidae, or alternatively, in the family Rhinodrilidae. General characteristics The type species '' Pontoscolex corethrurus'' has a circumtropical distribution, although it originates in the Neotropics, probably in the Guiana Plateau. It reproduces parthenogenetically, and under experimental conditions can complete its life cycle in about one year. Adults measure in length. Diagnostic characteristics There are eight setae per segment, arranged in regular rows, at least in the anterior part of the animal, whereas in the posterior part the arrangement varies (regular, more or less irregular, or in quincunx). No pigment is usually present. Male pores and tubercula pubertatis are in the clitellar region. The gizzard is in the segment VI. Three pairs of calciferous glands of tubular-dichotomous (panicled) structure are in the segments VII–IX. Dorsal, ventral, supra- and subesophageal and subneural vessels are pre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pontoscolex Hingstoni
''Pontoscolex'' is a genus of earthworms in the family Glossoscolecidae, or alternatively, in the family Rhinodrilidae. General characteristics The type species '' Pontoscolex corethrurus'' has a circumtropical distribution, although it originates in the Neotropics, probably in the Guiana Plateau. It reproduces parthenogenetically, and under experimental conditions can complete its life cycle in about one year. Adults measure in length. Diagnostic characteristics There are eight setae per segment, arranged in regular rows, at least in the anterior part of the animal, whereas in the posterior part the arrangement varies (regular, more or less irregular, or in quincunx). No pigment is usually present. Male pores and tubercula pubertatis are in the clitellar region. The gizzard is in the segment VI. Three pairs of calciferous glands of tubular-dichotomous (panicled) structure are in the segments VII–IX. Dorsal, ventral, supra- and subesophageal and subneural vessels are pre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pontoscolex Franzi
''Pontoscolex'' is a genus of earthworms in the family Glossoscolecidae, or alternatively, in the family Rhinodrilidae. General characteristics The type species '' Pontoscolex corethrurus'' has a circumtropical distribution, although it originates in the Neotropics, probably in the Guiana Plateau. It reproduces parthenogenetically, and under experimental conditions can complete its life cycle in about one year. Adults measure in length. Diagnostic characteristics There are eight setae per segment, arranged in regular rows, at least in the anterior part of the animal, whereas in the posterior part the arrangement varies (regular, more or less irregular, or in quincunx). No pigment is usually present. Male pores and tubercula pubertatis are in the clitellar region. The gizzard is in the segment VI. Three pairs of calciferous glands of tubular-dichotomous (panicled) structure are in the segments VII–IX. Dorsal, ventral, supra- and subesophageal and subneural vessels are pre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pontoscolex Cynthiae
''Pontoscolex'' is a genus of earthworms in the family Glossoscolecidae, or alternatively, in the family Rhinodrilidae. General characteristics The type species '' Pontoscolex corethrurus'' has a circumtropical distribution, although it originates in the Neotropics, probably in the Guiana Plateau. It reproduces parthenogenetically, and under experimental conditions can complete its life cycle in about one year. Adults measure in length. Diagnostic characteristics There are eight setae per segment, arranged in regular rows, at least in the anterior part of the animal, whereas in the posterior part the arrangement varies (regular, more or less irregular, or in quincunx). No pigment is usually present. Male pores and tubercula pubertatis are in the clitellar region. The gizzard is in the segment VI. Three pairs of calciferous glands of tubular-dichotomous (panicled) structure are in the segments VII–IX. Dorsal, ventral, supra- and subesophageal and subneural vessels are pre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |