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The upcoming discussion will update you about the difference between male and female common round worm.
Difference # Male Round Worm:
1. Male round worm are smaller than the females and are usually 15-17 cm in length and 3 mm in diameter.
2. The posterior portion of the body of male round worm is curved ventrally with a conical tip.
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3. Cloaca is present in male round worm.
4. The ejaculatory duct of the male reproductive system opens into the rectum to form cloaca, through which faeces and sperms are eliminated.
5. Two equal chitinoid copulatory spicules or penial setae are present in cloacal aperture (anus) Fig. 15.9D.
6. There are 50 pairs genital papillae in front of the cloaca and 5 pairs behind the cloaca, sometimes called pre-anal papillae (50) and post-anal papillae (5).
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7. Vulvar waist is absent in male round worm.
Difference # Female Round Worm:
1. Female round worms are larger than the males and are usually 20-25 cm in length and 5 mm in diameter.
2. The posterior end is straight and bluntly pointed to a conical end.
3. Cloaca is absent in female round worm.
4. Anus and genital aperture (gonopore) open separately in female round worm.
5. Penial setae are absent in female round worm.
6. Genital papillae are absent in female round worm.
7. Vulvar waist is present in female round worm.
