without rhabdite bundles in epidermis; gland cells of adhesive papillae insunk; longitudinal nerve trunks and tail ganglion within circular musculature; with eyes; body cylindrical, with a truncated anterior end; intestine straight, unpocketed; atrium lying over gonopore, with a ventral ciliated and a dorsal unciliated part; accessory gland upaired; gland stylet long, tube-shaped; ovaries with semipaired germinative zones; with a bursal canal; middle piece of cuticular apparatus bowl-shaped, directly connected to sperm duct; sperm duct larger than the middle piece; sperm tubes long, curved at thin end.
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