IBSS Collection of Marine Parasites
Marine parasites → Platyhelminthes → Monogenea → Dactylogyridea → Ancyrocephalidae → Ligophorus →

Ligophorus pilengas Sarabeev et Balbuena, 2004 parasite in collection sequenced outlined

copulatory organ
copulatory organ
haptoral structures
haptoral structures
Haptor

Type host

Planiliza haematocheila (Temminck & Schlegel, 1845)

Type locality

Sea of Azov, Utlyukskiy Estuary

Other localities

Black Sea, Sevastopol; Black Sea, Balaklava Bay; Black Sea, Kerch channel (Naberezhnoe); Black Sea, Karantinnaya Bay, Sevastopol

Short description:

General internal morphology and haptoral armaments all conform to diagnose of genus Ligophorus sensu Euzet & Suriano (1977). Flattened specimens with body-size 572–1000 × 90–180 mkm. Anchors similar: distal part shorter than proximal part; distal and proximal parts form obtuse angle; distal part with straightened shaft; point almost at right angle. Ventral anchor roots of almost equal length (inner 10–13, outer 8–11 mkm); inner root of dorsal anchor longer than outer (16–20 vs. 6–12 mkm). Proximal part of the ventral anchors at the point where the roots bifurcate has high individual variability in the shape, sometimes with deep fissure between roots. Ventral anchor: inner length 38–44; distal part length 23–25; shaft length 21–24; point length 9–10; inner length of proximal part 30–33; outer length of proximal part 21–23; span between roots 18–20 mkm. Dorsal anchor: inner length 40–42; distal part length 21–23; shaft length 19–21; point length 9-10; inner length of proximal part 27–30; outer length of proximal part 21–23; span between roots 17–20 mkm. Marginal hooks typical for genus (Euzet & Suriano, 1977): total length 12–13, shaft length 6–7, sickle length 5–6 mkm. Dorsal bar, 5–8 high, 40–46 wide, scale-beam shaped, usually curved. Ventral bar, 8–10 high, 44–51 wide, with two digitiform anterior processes, 5–6 long, span between them 7–9; middle part slightly protruded anterior; ventral side of ventral bar with 2 wide, wing-shaped laminae attached to each anterior process and entirely surrounding lateral margins of ventral median knoll.
Copulatory organ consists of copulatory tube, 108–120 long, 2 mkm wide; expanded base double-chambered, receives the seminal and prostatic reservoir ducts. Accessory piece, 32–40 long, 3–4 mkm wide, not articulated with tube, forms deep gutter, with U-shaped cross-section partly enclosing copulatory tube, bifurcates into 2 parts 2/3 of distance from its distal end. Lower bifurcation is thinner and rather longer than upper (8–12 vs. 7–11 mkm) and slightly deflected (span between bifurcations 1–4 mkm). Upper bifurcation connects with tegument around male genital pore by crimped ligament. Two proximally directional rod-shaped processes beginning from upper bifurcation serve for the insertion of the distal end of the muscular sheath surrounding copulatory tube up to its distal expansion. Vaginal armament is typical for genus, forming hollow, narrow tube with solid walls, 45–75 mkm long.

Nucleotide sequences

28S ribosomal RNA gene, partial sequence deposited in GenBank:
KY979153 28S hologenophore 759.M.ds.v71

Outlines of haptor structures

Dorsal anchors

Dorsal bars

Ventral anchors

Ventral bars

Why are the outlines so blured?

Specimens in collection

exemplar found in host
523.M.ds.v1-2 vaucher adult wholemount 0000-00-00 Black Sea, Sevastopol Planiliza haematocheila
524.M.ds.v3-7 vaucher adult wholemount 2002-07-00 Black Sea, Sevastopol Planiliza haematocheila
525.M.ds.v8-10 vaucher adult wholemount 2002-07-00 Black Sea, Sevastopol Planiliza haematocheila
527.M.ds.v14-15 vaucher adult wholemount 2002-07-00 Black Sea, Sevastopol Planiliza haematocheila
526.M.ds.v11-13 vaucher adult wholemount 2002-07-00 Black Sea, Sevastopol Planiliza haematocheila
528.M.ds.v16 vaucher adult wholemount 2002-07-00 Black Sea, Sevastopol Planiliza haematocheila
529.M.ds.v17 vaucher adult wholemount 2002-07-00 Black Sea, Sevastopol Planiliza haematocheila
530.M.ds.v18 vaucher adult wholemount 2002-07-00 Black Sea, Sevastopol Planiliza haematocheila
534.M.ds.v19-21 vaucher adult wholemount 2015-02-27 Black Sea, Balaklava Bay Planiliza haematocheila
535.M.ds.v22 vaucher adult wholemount 2015-02-27 Black Sea, Balaklava Bay Planiliza haematocheila
536.M.ds.v23 vaucher adult wholemount 2015-02-27 Black Sea, Balaklava Bay Planiliza haematocheila
537.M.ds.v24 vaucher adult wholemount 2015-02-27 Black Sea, Balaklava Bay Planiliza haematocheila
538.M.ds.v25-26 vaucher adult wholemount 2015-02-27 Black Sea, Balaklava Bay Planiliza haematocheila
539.M.ds.v27-34 vaucher adult wholemount 2011-03-22 Black Sea, Kerch channel (Naberezhnoe) Planiliza haematocheila
540.M.ds.v35-43 vaucher adult wholemount 2010-06-16 Black Sea, Kerch channel (Naberezhnoe) Planiliza haematocheila
541.M.ds.v44 vaucher adult wholemount 0011-03-14 Black Sea, Kerch channel (Naberezhnoe) Planiliza haematocheila
542.M.ds.v45-53 vaucher adult wholemount 2011-03-14 Black Sea, Kerch channel (Naberezhnoe) Planiliza haematocheila
543.M.ds.v54-55 vaucher adult wholemount 2011-03-09 Black Sea, Kerch channel (Naberezhnoe) Planiliza haematocheila
544.M.ds.v56 vaucher adult wholemount 2010-05-15 Black Sea, Kerch channel (Naberezhnoe) Planiliza haematocheila
545.M.ds.v57-60 vaucher adult wholemount 2010-05-04 Black Sea, Kerch channel (Naberezhnoe) Planiliza haematocheila
546.M.ds.v61-63 vaucher adult wholemount 2011-07-09 Black Sea, Kerch channel (Naberezhnoe) Planiliza haematocheila
548.M.ds.v64-68 vaucher adult wholemount 2010-05-16 Black Sea, Kerch channel (Naberezhnoe) Planiliza haematocheila
756.M.ds.v69-70 vaucher adult wholemount 1994-04-10 Black Sea, Karantinnaya Bay, Sevastopol Planiliza haematocheila
759.M.ds.v71 vaucher adult part of specimen 2016-05-23 Black Sea, Balaklava Bay Planiliza haematocheila

Lamellodiscus

Ligophorus abditus Dmitrieva, Gerasev et Gibson, 2013
Ligophorus acuminatus Euzet et Suriano, 1977
Ligophorus angustus Euzet et Suriano, 1977
Ligophorus bipartitus Dmitrieva, Gerasev, Gibson, Pronkina, Galli, 2012
Ligophorus bykhowskyi Dmitrieva, Gerasev, Gibson, Pronkina, Galli, 2012
Ligophorus campanulatus Dmitrieva, Gerasev, Gibson, Pronkina, Galli, 2012
Ligophorus cephali Rubtsova, Balbuena, Sarabeev, Blasco-Costa et Euzet, 2006
Ligophorus chabaudi Euzet et Suriano, 1977
Ligophorus cheleus Rubtsova Balbuena & Sarabeev, 2007
Ligophorus confusus Euzet et Suriano, 1977
Ligophorus domnichi Rubtsova Balbuena et Sarabeev, 2007
Ligophorus euzeti Dmitrieva et Gerasev, 1996
Ligophorus fenestrum Soo & Lim, 2012
Ligophorus fluviatilis (Bychowsky, 1949) Dmitrieva, Gerasev, Gibson, Pronkina, Galli, 2012
Ligophorus grandis Soo, Tan & Lim, 2015
Ligophorus heteronchus Euzet et Suriano, 1977
Ligophorus imitans Euzet et Suriano, 1977
Ligophorus kaohsianghsieni (Gusev, 1962) Gusev,1985
Ligophorus kedahensis Soo & Lim, 2012
Ligophorus lebedevi Dmitrieva, Gerasev, Gibson, Pronkina, Galli, 2012
Ligophorus llewellyni Dmitrieva, Gerasev & Pronkina, 2007
Ligophorus macrocolpos Euzet et Suriano, 1977
Ligophorus mamaevi Dmitrieva, Gerasev, Gibson, Pronkina, Galli, 2012
Ligophorus mediterraneus Sarabeev, Balbuena et Euzet, 2005
Ligophorus minimus Euzet et Suriano, 1977
Ligophorus mugilinus (Hargis, 1955) Euzet et Suriano, 1977
Ligophorus pacificus Rubtsova Balbuena et Sarabeev, 2007
Ligophorus parvicirrus Euzet et Sanfilippo, 1983
Ligophorus pilengas Sarabeev et Balbuena, 2004
Ligophorus simpliciformis Dmitrieva, Gerasev, Gibson, Pronkina, Galli, 2012
Ligophorus surianoae Dmitrieva, Gerasev, Gibson, Pronkina, Galli, 2012
Ligophorus szidati Euzet et Suriano, 1977
Ligophorus vanbenedenii (Par. et. Per., 1810) Euzet et Suriano, 1977
Ligophorus zhangi Dmitrieva, Gerasev, Gibson, Pronkina, Galli, 2012

Ligula