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Sexually mature individuals about 4-6 mm in length; proboscis very minute and
short, extending scarcely more than its own diameter posteriorly to the
brain; basis 27-33 μ in length and 5-8 p. in diameter, often somewhat
asymmetrical; stylet 12-15 μ in length; posterior proboscis chamber bent
at angle to anterior part of proboscis in ordinary states of contraction.