Below are images of spermathecae from various specimens in my collection at various stages of development.
Female, 3.5" DLS
40x zoom
Female, 3" DLS
Female, 1.25" DLS
100x zoom
Female, 2.5" DLS
Female 3" DLS
Female, 5" DLS
Female, 1" DLS
Female 2" DLS
Female, 3/4" DLS
400x zoom
Female, 4" DLS
Female, 1.5" DLS