Evidence
Where all of this came from.
39 reference records rest on 224 published pages, and 109 of those come from state and provincial natural-resources departments. That suits a set of records about what lives in the water those departments survey. The rest is federal survey work, university and extension guides, and interagency reports. The counts are below. Every reviewed line sits behind a record or a search, with the sources standing behind its record.
How to read this
A line is cited as precisely as someone checked it.
Where a reviewer traced a line to the pages that carry it, the line names those pages and, when the evidence is narrower than the record, where it comes from — one coast, one lake, one region. 605 of 1049 of the lines below are traced that way. The rest show the sources standing behind their whole record, marked “record’s sources”, because nobody has yet checked which page carried which line, and printing a single citation there would be a mapping nobody made.
National
52
A federal or national government body — USGS, NOAA, EPA, the Fish and Wildlife Service, the Park Service, Fisheries and Oceans Canada.
State
109
A state, provincial or commonwealth natural-resources department. Most of this carrier rests here, which suits it: these are the bodies that survey the water the records describe.
Interagency
12
A commission or joint survey run across several agencies, such as the Great Lakes Fishery Commission's forage task groups.
University
45
A university research programme, cooperative extension service or Sea Grant office. Published work, but not the agency that manages the water.
Journal
6
A peer-reviewed paper, or a curated scientific register such as the World Register of Marine Species. Added with the 2026-09-25 evidence review, which went to the primary study where no agency page said what a claim needed.
Probe leftovers
What the weekly check could not treat as ordinary.
These addresses are still the citations. The check named what it saw. None of them is a gone page in the MISIN sense, so the records were not rewritten to hide a redirect, a timeout, or a bot wall.
Iowa DNR — BluegillMoved
The cited address answers through a permanent redirect. GET on the page that lands still names Bluegill.
A same-site move that still names the animal is not the MISIN case. The citation stays until a reviewer reads the new address into the record.
CASG — market squidUnreachable from this network
The California Sea Grant market-squid page times out from the probe network.
NOAA still covers the same animal on this record. The CASG address stays; a timeout is not a reason to drop a citation.
Mass.gov — menhaden and longfin squidRefused the probe
Both creature-feature pages answered 403 from the probe network.
A bot wall is not evidence the page is gone. The citations stay; the weekly check does not fail the build on unverifiable.
Michigan DNR — crayfish identification PDFRefused the probe
The cited PDF answered 403 from the probe network.
A refused PDF is not a 404. The citation stays on the crayfish record until a reviewer can open it.
Smithsonian Tropical Research Institute — silversidesRefused the probe
The Menidia page answered 500 from the probe network.
A 500 is not a 404, and it is not a 403. The citation stays.
Claims
Every reviewed line in the app.
Marine worms (clam worm, sandworm, bloodworm) →24 lines
- What you can seeA row of leg-like flaps down both sides, one pair to each segment, fringed with fine bristlesCBP-BRISTLE-WORMSEvidence from: Nereid and glycerid worms combined
- What you can seeAn eversible proboscis that shoots out of the mouth carrying dark jaws — TWO amber or black jaws on a clam worm or sandworm, FOUR black jaws on a bloodwormSERC-ALITTA-SUCCINEA, LANDER-NEREIS-VIRENS, LANDER-GLYCERAEvidence from: Nereid and glycerid worms combined
- What you can seeA bloodworm's body fluid is red with haemoglobin, showing through the thin walls of its gills; a clam worm is brownish in front, greenish to pale reddish behind, with a red line of blood vessel down the backLANDER-GLYCERA, SERC-ALITTA-SUCCINEAEvidence from: Nereid and glycerid worms combined
- What you can seeThe swarming form has enlarged eyes — especially the males, which turn bright red with a white tailSERC-ALITTA-SUCCINEAEvidence from: Clam worm (Alitta succinea)
- What you can seeThe nereid head carries short antennae, two fleshy palps, four eyes and four pairs of long whip-like feelers; the bloodworm head is a long ringed cone with four tiny antennae and nothing elseLANDER-NEREIS-VIRENS, SERC-ALITTA-SUCCINEA, LANDER-GLYCERAEvidence from: Nereid and glycerid worms combined
- What argues against itA sucker at each end of the body is a leech, not a polychaeteMDC-LEECHESEvidence from: Missouri leeches
- What argues against itNo flaps down the sides at all, and no proboscis, points to an aquatic worm rather than a marine oneMDC-TUBIFICID-WORMSEvidence from: Freshwater tubificid worms (Missouri)
- What argues against itA short, bright red, big-eyed worm swimming at the surface is NOT a different species from the long brown worm in the mud — it is the same animal in breeding formSERC-ALITTA-SUCCINEAEvidence from: Clam worm (Alitta succinea)
- Declared limitThe name “cinder worm” is used by no agency, Sea Grant or university source consulted. It appears only in angling media. The Smithsonian does establish that Nereis limbata and Alitta succinea are the same animal, which is the strongest link available — but no consulted source says the animal anglers call a cinder worm is that species.SERC-ALITTA-SUCCINEAEvidence from: Clam worm (Alitta succinea)
- Declared limitNo source consulted gives a segment count for the bloodworm.SERC-ALITTA-SUCCINEA, LANDER-GLYCERA, LANDER-NEREIS-VIRENSEvidence from: Nereid and glycerid worms combined
- Declared limitNo source consulted describes the swimming motion of a swarming worm beyond gyrating and circling.record’s sources
- Declared limitThe claim that the swarm fires on a specific moon phase, on the evening flood, at a stated water temperature in Fahrenheit, or for a set number of nights, is made by no source consulted. The temperature figures that exist are laboratory metamorphosis rates, not a field trigger.SERC-ALITTA-SUCCINEA, MBL-NEREIS-MOONLIGHT, NOAA-BLOODWORM-VULNEvidence from: Nereid and glycerid worms combined
- Size bandadult: 50-900 (clam worm up to 170; sandworm usually 200-400, up to about 900) mmSERC-ALITTA-SUCCINEA, LANDER-NEREIS-VIRENS, CBP-BRISTLE-WORMSEvidence from: Nereid and glycerid worms combined
- Size bandswarming form: 14-75 mmSERC-ALITTA-SUCCINEAEvidence from: Clam worm (Alitta succinea)
- Water typeinshorerecord’s sources
- Water typenearshorerecord’s sources
- Life stageadultrecord’s sources
- Where it sitsin a broad U-shaped burrow in mud and sand, or in galleries of tunnels in soft sedimentSERC-ALITTA-SUCCINEA, LANDER-GLYCERAEvidence from: Nereid and glycerid worms combined
- Where it sitssome build permanent tubes on mud flats; others move freely across the shallowsCBP-BRISTLE-WORMSEvidence from: Bristle worms generally (Chesapeake Bay)
- Where it sitsduring a swarm they leave the bottom entirely and swim at the surfaceSERC-ALITTA-SUCCINEA, MBL-NEREIS-MOONLIGHTEvidence from: Clam worm (Alitta succinea)
- How it movesswarming adults swim at the surface; males swim faster in a gyrating motion, females circling with males close behindSERC-ALITTA-SUCCINEA, MBL-NEREIS-MOONLIGHTEvidence from: Clam worm (Alitta succinea)
- How it moveslike many bristle worms, breaks apart easily when handled and regrows the lost partCBP-BRISTLE-WORMSEvidence from: Bristle worms generally (Chesapeake Bay)
- Sources disagreeTwo authoritative sources disagree outright about the swarm. The Smithsonian's synthesis records swarming both by day and at night, documents no lunar or tidal relationship, and found no photoperiod effect in experiment; the Marine Biological Laboratory's account from Woods Hole says the swarming is regulated by the lunar cycle and that fertile worms can be collected only on summer nights. This record carries both and settles neither.record’s sources
- Sources disagreeThe only tidal statement in any consulted source — spawning in swarms on afternoon high tides — is about bloodworms, a different animal from the nereid worm anglers actually fish over.record’s sources
- Chesapeake Bay ProgramCBP-BRISTLE-WORMS · Interagency · read 2026-09-04
- Smithsonian Environmental Research CenterSERC-ALITTA-SUCCINEA · National · read 2026-09-04
- Marine Biological LaboratoryMBL-NEREIS-MOONLIGHT · University · read 2026-09-04
- Lander UniversityLANDER-NEREIS-VIRENS · University · read 2026-09-04
- Lander UniversityLANDER-GLYCERA · University · read 2026-09-04
- NOAA FisheriesNOAA-BLOODWORM-VULN · National · read 2026-09-04
- Maine Department of Marine ResourcesMEDMR-MARINE-WORMS · State · read 2026-09-04
- Missouri Department of ConservationMDC-LEECHES · State · read 2026-09-02
- Missouri Department of ConservationMDC-TUBIFICID-WORMS · State · read 2026-09-02
The pages themselves
All 224, and what each one is holding up.
- Chesapeake Bay Program
CBP-BRISTLE-WORMS
- Lander University
LANDER-GLYCERA
- Lander University
LANDER-NEREIS-VIRENS
- Maine Department of Marine Resources
MEDMR-MARINE-WORMS
- Marine Biological Laboratory
MBL-NEREIS-MOONLIGHT
- Missouri Department of Conservation
MDC-LEECHES
- Missouri Department of Conservation
MDC-TUBIFICID-WORMS
- NOAA Fisheries
NOAA-BLOODWORM-VULN
- Smithsonian Environmental Research Center
SERC-ALITTA-SUCCINEA
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