seta

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seta

[′sed·ə]
(biology)
A slender, usually rigid bristle or hair. Also known as chaeta.
In mosses and liverworts, the stalk of the sporophyte supporting the capsule.
References in periodicals archive ?
In all other forms of shell disease, lesions appear to be round, and, at least for ISD, these initial lesion loci have been associated with setal pores and may, in time, spread to cover larger surfaces of the carapace symmetrically (Smolowitz et al.
Legs I and II differ from legs III and IV with respect to shape and setal composition (Figs.
6a); Frankliniella occidentalis body color ranging from (Pergande) yellow to brown, the widespread strain is yellow with a dark, longitudinal stripe running down the center; ocellar III setae arising slightly anterior to anterior margin of posterior ocelli, setal bases near margins of ocellar triangle (Fig.
Fore femur with a large, acutely angulate tooth arising slightly anterior of center from inner face, posterior margin and apex of this tooth bearing a dense fringe of very short, stiff erect setae, length of this tooth (measured from dorsal margin of femur to apex of tooth and excluding apical setal tuft) slightly less than maximum width of femur on basal half, a shorter obtusely angulate tooth bearing a dense fringe of very short, stiff erect setae present on ventral margin of femur immediately posterior to larger tooth in area subtended by infolded apex of fore tarsus; fore femur widening distally in lateral view, maximum width anterior to tooth (0.70) equal to maximum width of basal section posterior to paired teeth.
This result is consistent with literature examining the "leakiness" of setal arrays that predict cylindrical setae with dimensions (i.e., gap to lappet diameter ratio [less than or equal to] 1) and fluid regimes (Re 0.5-10) similar to those of swimming ephyrae would have leakiness values of less than 20% (Hansen and Tiselius, 1992; Koehl, 1993, 2001).
24) with hand distinctly depressed at level of ib/isb, with low and long hump distad of ib/isb and gentle slope between trichobothria ib/isb and eb; weak hollow before base of movable finger with thicker cuticle; width approximately equal to depth, maximum width slightly proximad of ib/isb; chaetotaxy 4:5:4, seta [ph.sub.3] present, seta [dh.sub.3] removed to halfway between the distal and the intermediary setal rows, seta [ih.sub.2] same size as others (0.05 mm long, ratio hand depth/[ih.sub.2] length 3.5); distal end of the hand and base of the chelal fingers with sclerotized condylar complex.
Tergite IX with a dark band in which the anterior margin extends anteriorly about the diameter of a D1 setal socket.
belong to species group of subgenus Erythraeus (Erythraeus) with basifemoral setal formula 3-3-3.
Notes on reproductive biology of some serpulid polychaetes of Sesoko Island, Okinawa, with brief accounts of setal morphology of three species of Salmacina and Filograna implexa.
22); apex of last antennal segment with higher setal density, with three distinct ampulla-like setae (Fig.
Abdomen white, with transparent setae with yellow-brown spots at setal bases; sometimes with 6 brown setae in posterior half; venter white.