Oval-shaped body, about 30 setiger
; elytra 15 pairs, with scattered papillae; prostomium with globular ocular lobes; facial tubercle present; long median ante nna with ceratophore; long palps with small scattered papillae; tentacular cirrus long and thin; dorsum without or with very few felted notosetae, elytra visible; harpoon-shaped notosetae absent; notosetae long, notosetae all smooth, of two kinds: stout, smooth sabrelike, long, curved over dorsum and fine capillary setae; neurosetae of anterior few segments with extra teeth, some bipinnate; ventral surface and parapodia covered with globular papillae (Amaral & Nonato, 1982).
Branchiae starts at the 4th setiger
. Winged capillary chaetae on the anterior, and without wings on the posterior.
A study of Croton setiger
Hook and its comparison with other species within genus Croton.
in Osmaniye; Araniella inconspicua, Anyphaena accentuate, Micaria pulicaria, Lepthyphantes sp., Thanatus pictus, Heliophanus cupreus, Heliophanus flavipes, Salticus cingulatus, Argyrodes sp., Dipoena coracina, Theridion cinereum, Theridiosoma gemmosum, Heriaeus setiger
, Runcinia sp.,
Though whitewinged doves consume a variety of native seeds such as doveweed (Croton setiger
), leatherweed (Croton pottsii), and wild sunflower (Helianthus species; George et al., 1994), in San Antonio, large flocks of white-winged doves utilize neighboring agriculture fields to feed during the breeding season (West, 1993).
The Polydora-complex represents a group of about 150 morphologically similar spionids that all have a modified 5th setiger
; it includes the genera Boccardia, Polydora, Dipolydora, and Pseudopolydora, among others (Blake, 1996; Walker, 2011).
In fact, in the middle reaches of the Banado Carilauquen there was presence of taxa such as Tropisternus setiger
, Haliplus sp., Pseudochironomus sp., B.
The shell-boring polychaete species were identified on the basis of fifth setiger
chaetae, prostomium and pygidium morphology, and branchiae distribution.
The branchial filament arises from the posterior border of setiger
, which was the taxon found to be mainly responsible for incongruence in the Berry et al.
For this species we were able to test for differences in: (1)juveniles ([less than] 0.25 mm wide at setiger
V), which had not developed tubes or with tubes restricted to the upper 2 cm of the sediment that were likely to be disturbed by wind-driven waves and (2) adults ([greater than] 0.5 mm wide at setiger
V) whose tubes penetrate 5-10 cm into the sediment and form the adult tube mats found at the study site.
Diagnosis: The caruncle is small and hidden by the overlying peristomium and 7 pairs of branchiae are present first occurring on the second setiger
. The short antennae and cirri are articulated and there are 2 pairs of eyespots with the second pair hidden under the overhanging peristomium.