One incomplete cephalon from sample Gh-7A/30-32 m; one enrolled exoskeleton (GUGM 1361) from sample Gh-7B/5-12 m and one pygidium
(GUGM 1369) from sample Gh-7B/23-30 m.
disc-like or cup-shaped, with a dorsal to narrow incision (Fig.
a) Mid-posterior chaetigers, showing branched branchiae, b) distal end, dorsal view, c) distal end with pygidium
in ventrolateral view.
The flagellum with 4 flagellomeres, 5-jointed tarsi, antennae inserted near the middle of the rostrum, and pygidium
exposed indicate placement in the tribe Dryophthorini.
Cilia in ventral band, palp, and pygidium
are 8-10 ([micro]m long.
Body is long, ranging from 60 mm to 64 mm (55-58 segments), gradually tapering towards the pygidium
. The prostomium is blunt, conical, the length being slightly longer than width and has no eyes and appendages.
Tiene poros perivulvares y el pygidium
es amplio, subtendido por un angulo superior a 90[grados], con tres pares de lobulos redondeados y el borde (entre los segmentos VI y VII) con numerosos macroconductos ordenados en doble o triple hilera.
The correlations analysis of Spearman's shows that rainfall acts negatively on reproductive activity (P = 0,0132, Ratio= -0,68) by preventing the theft of the adult males on lemon-tree, (P = 0,060, Ratio= -0,55) for the sliding of the females towards the party inferior of the buckler, to display their pygidium
to the coupling on the orange-tree.
The exposed pygidium
is black, having a central longitudinal white streak.
Male can be recognised from female by its antenna which is more serrate and last segment of pygidium
. The pygidium
of the male appears straight downwards from above.
The shell-boring polychaete species were identified on the basis of fifth setiger chaetae, prostomium and pygidium
morphology, and branchiae distribution.