Last, there is the uterine apex, a looped projection of the reproductive tract that extends into the internal viscera and is incorporated beneath the kidney and nephridial gland.
A comprehensive assessment includes these organs as well as foot and columellar muscle, nephridial gland, esophagus, stomach, small intestine, rectum, and anus.
Briefly, 10 mg of nephridial
tissue was homogenized at 4[degrees]C in PBS, and then the mixture was further treated by ultrasonication.
As described for the species by Londono-Mesa (2009) nephridial
papillae occur on setigers 3, 4 and 6 and 7.
tanae leech, Tan describes its features (without using epididymal or nephridial
Initially, nephridial pair 4 resides roughly at the ankle of the sock, where it is folded over, and the larval esophagus and mid-gut reside entirely outside the sock; nephridial pairs 1-4 hang into the blastocoelic space from the unrolled leg, whereas pairs 5-7 reside inside the foot of the sock along with the larval hindgut (Fig.
(D-F) late-stage mitraria with fully formed juvenile rudiment surrounding the larval mid-gut (mg) and hindgut (hg) with nephridial pairs, juvenile chaetal muscles (outlined arrows), and juvenile buccal organ (bu).
Relevant taxonomic characteristics in the holotype description: "Diagnosis: In fourth and fifth legs, nephridial
tubercle free from third sole and only partially surrounded by the fourth arc.
Moreover, the occurrence of nephridial
pores was likewise incorrectly stated.
tubercle: Present in the 4th and 5th oncopod pairs, anteriorly displaced and opening between the 3rd and 4th creeping pads, free from the 3rd and indenting the proximal margin of 4th pad, which is crescent-shaped around it.
Ultrastructure of the crayfish kidney - coelomosae, labyrinth, and nephridial
pores: Begin on segment 2, somewhat dorsal to setal line ab.