APHOTOMARINE

An educational resource dedicated mainly to the photography
and diversity of marine life that can be found in coastal waters
and intertidal areas of Great Britain and Ireland by David Fenwick.

Nemertea (Phylum) - Nemertean or Ribbon Worms (Marine worm images)
Anopla (Class)

Heteronemertea (Subclass) > Lineidae (Family)

Lineus
Lineus bilineatus (Renier, 1804) - A lineid nemertean
Lineus clandestinus Krämer, Schmidt, Podsiadlowski, Beckers, Horn & Von Döhren, 2016 - A lineid ribbon worm
Lineus grubei (Hubrecht, 1879) - A lineid nemertean
Lineus longissimus (Gunnerus, 1770)
- Long or Bootlace worm

Lineus ruber (Müller, 1774) - Red ribbon worm
Lineus viridis (Müller, 1774) - A lineid nemertean

Micrura
Micrura fasciolata Ehrenberg, 1828 - A lineid nemertean
Micrura purpurea (Dalyell, 1853) - A lineid nemertean

Ramphogordius
Ramphogordius lacteus Rathke, 1843
- A lineid nemertean

Ramphogordius sanguineus (Rathke, 1799)
- A lineid nemertean

Enopla (Class)

Hoplonemertea (Subclass) > Monostilifera (Order) > Eumonostilifera (Suborder) > Amphiporidae (Family)

Amphiporus
Amphiporus elongatus Stephenson, 1911
syn. Psammamphiporus elongatus ?
- An Amphiporid nemertean

Amphiporus lactifloreus (Johnston, 1828)
- An Amphiporid nemertean

Hoplonemertea (Subclass) > Monostilifera (Order) > Eumonostilifera (Suborder) > Emplectonematidae (Family)

Emplectonema
Emplectonema gracile (Johnston, 1837) - A Ribbon worm
Emplectonema neesii (Örsted, 1843) - A Ribbon worm

Nemertopsis
Nemertopsis bivittata (Delle Chiaje, 1841)
- A Ribbon or nemertean worm

Nemertopsis flavida (McIntosh, 1873/74)
- A Ribbon or nemertean worm

Nemertopsis sp. ? - Newlyn 03.01.17 and other dates
- A nemertean or ribbon worm

Hoplonemertea (Subclass) > Monostilifera (Order) > Eumonostilifera (Suborder) > Oerstediidae (Family)

Oerstedia dorsalis is known to be extremely variable, but it may also be a complex of species that needs further investigation, which is why the images have been split into three rough types. Form three here may or may not fit with the currently accepted species Oerstedia nigra (Riches, 1893).

Oerstedia
Oerstedia dorsalis (Abildgaard, 1806)
- A Nemertean worm (common forms)

Oerstedia dorsalis (Abildgaard, 1806)
- A Nemertean worm (form two)

Oerstedia dorsalis (Abildgaard, 1806)
- A Nemertean worm (very dark forms)

Oerstedia dorsalis (Abildgaard, 1806)
- A Nemertean / Ribbon worm (spotted forms)

Oerstedia dorsalis (Abildgaard, 1806)
- A Nemertean / Ribbon worm (partially spotted)

Monostilifera (Order) > Eumonostilifera (Suborder) > Prosorhochmidae (Family)

Prosorhochmus
Prosorhochmus claparedii Keferstein, 1862
- A Prosorhochmid nemertean

Hoplonemertea (Subclass) > Monostilifera (Order) > Eumonostilifera (Suborder)

Vieitezia
Vieitezia luzmurubeae Junoy, Andrade & Giribet, 2010
- A hoplonemertean (Species new to UK - May 2015)

Hoplonemertea (Subclass) > Monostilifera (Order) > Eumonostilifera (Suborder) > Carcinonemertidae (Family)

Carcinonemertes
Carcinonemertes carcinophila (Kölliker, 1845)
- A parasitic nemertean on Shore crab eggs

Hoplonemertea (Subclass) > Monostilifera (Order) > Eumonostilifera (Suborder) > Tetrastemmatidae (Family)

Tetrastemma
Tetrastemma candidum (Müller, 1774) ? or similar species
- A tetrastemmatid nemertean

Tetrastemma coronatum (Quatrefages, 1846)
- A tetrastemmatid nemertean

Tetrastemma flavidum Ehrenberg, 1828 ?
- A tetrastemmatid nemertean

Tetrastemma helvolum Bürger, 1895 ? or similar species
- A tetrastemmatid nemertean

Tetrastemma herouardi (Oxner, 1908)
- A tetrastemmatid nemertean

Tetrastemma melanocephalum (Johnston, 1837)
- A tetrastemmatid nemertean

Tetrastemma vermiculus (Quatrefages, 1846)
- A tetrastemmatid nemertean

Tetrastemma sp. 23.03.15 - A tetrastemmatid nemertean

Hoplonemertea (Subclass) > Polystilifera (Order) > Reptantia (Suborder) > Eureptantia (Infraorder) > Inaequifurcata (Superfamily) > Paradrepanophoridae (Family)

Paradrepanophorus
Paradrepanophorus crassus (Quatrefages, 1846)
- a paradrepanophorid nemertean

Hoplonemertea (Subclass) > Polystilifera (Order)

Nemertean species belonging to the order polystilifera
- Newlyn Marina, Newlyn, Cornwall. 28.05.15.

Palaeonemertea (Class)

Cephalothricidae (Family)

Cephalothrix
Cephalothrix filiformis Johnston, 1828
- A cephalothricid ribbon worm

Cephalothrix linearis (Rathke, 1799) ?
- A cephalothricid ribbon worm

Cephalothrix rufifrons (Johnston, 1837)
- A cephalothricid ribbon worm

Cephalothrix simula Iwata, 1952
- An invasive non-native species of ribbon worm

Tubulanidae (Family)

Tubulanus
Tubulanus annulatus (Montagu, 1804)
- Football jersey worm

Tubulanus banyulensis (Joubin, 1890)
- A nemertean or Ribbon worm

Tubulanus nothus (Bürger, 1892)
- A tubulanid nemertean

Tubulanus superbus (Kölliker, 1845)
- A tubulanid nemertean (probably part of)

Please note any species that has a question mark after its name (?) is either 'likely' to be that species, or cannot be determined exactly, because of a recent or current DNA revision. Photography is a good tool for identifying some species but many other species need either dissection or DNA analysis to determine to species level.

Specimens in need of identification or description

Nemertean species 02.03.17. (species nova?)
- A Ribbon or Nemertean worm

Nemertean species to identify, Helford 08.10.17
Nemertean 1 - Found amongst old Eelgrass roots on the
lowershore at Long Rock, Penzance, Cornwall. 19.03.15.

Nemertean 4 - Found under a stone at Penlee Point,
Mousehole. 20.03.15.

Nemertean 7 - found amongst fouling at Newlyn Marina, Newlyn. 14.04.15.
Nemertean 9 - Juvenile? found in fine sand at Albert Pier reef, Penzance, 25.08.17, perhaps as below.
Nemertean sp. from sand, Penzance 26.06.17
Nemertean 5, Penzance. 06.04.12.
- A Ribbon or nemertean worm

Nemertean species, Marazion 17.10.12
- A Ribbon or nemertean worm

Nemertean species, Penzance 27.02.13
- A Ribbon or nemertean worm

Various images of marine nemerteans

Nemertean worm egg masses

Nemertean or Ribbon worm
- proboscis (click to view image)

Nemertean or Ribbon worm
- with proboscis exerted (click to view image)

Terrestrial Nemertines or Smiling Worms (Nemertea)

Monostilifera (Order) > Eumonostilifera (Suborder) > Prosorhochmidae (Family)

Argonemertes
Argonemertes dendyi (Dakin, 1915)
- A terrestrial nemertine or Smiling worm (non-native)

Argonemertes sp. (c.f. A. australiensis)
- A terrestrial nemertine or Smiling worm (non-native)

Argonemertes sp. (c.f. A. dendyi)
- A terrestrial nemertine or Smiling worm (non-native)

Argonemertes sp.
- Various undetermined terrestrial nemertines (non-native)

Literature used to determine nemertean species
Synopses of the British Fauna (New Series) No.24 British Nemerteans by Ray Gibson.
Nemerteans from Spain and Portugal by Alfonso Herrera Bachiller.

Sealife Survey
Record UK marine life using the the Marine Biological Association's Sealife Survey (external link)

Nemertea nemertean Ribbon Bootlace Marine Worm Images UK