. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 436 Bulletin Museum of Comparative Zoology, Vol. 150, No. 8. Plate 3. Upper row. Chaetacis aureola. Left. Epigynum, left book-lung, fourth coxae. Right. Left book-lung cover of C. aureola. Middle row, left. Book-lung cover of Micrathena mitrata. Right. Close-up. Bottom row. Tip of left fourth leg of Micrathena mitrata with sustentaculum (arrow). Scale lines. Upper left mm; right middle row mm; others mm. this is a lost character it may be a poor one. Although the grouping of Micrathe- na, Chaetacis and Ga
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 436 Bulletin Museum of Comparative Zoology, Vol. 150, No. 8. Plate 3. Upper row. Chaetacis aureola. Left. Epigynum, left book-lung, fourth coxae. Right. Left book-lung cover of C. aureola. Middle row, left. Book-lung cover of Micrathena mitrata. Right. Close-up. Bottom row. Tip of left fourth leg of Micrathena mitrata with sustentaculum (arrow). Scale lines. Upper left mm; right middle row mm; others mm. this is a lost character it may be a poor one. Although the grouping of Micrathe- na, Chaetacis and Gasteracantha is sup- ported at present, the support is not con- vincing. More characters are being sought. According to Reimoser (1917), Gaster- acanthinae lack a sustentaculum (Webe- stachel). The sustentaculum is a macroseta with a bent tip, located below the claws on the tip of the leg. It was found on M. mitrata (arrows, Plate 3); I suspect it is present in other Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
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