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Genus of horseshoe crabs
Limulus is a genus of horseshoe crab, with one extant species, the Atlantic horseshoe crab (Limulus polyphemus). One fossil species is currently assigned
Limulus
Species of arthropod
The Atlantic horseshoe crab (Limulus polyphemus), also known as the American horseshoe crab, is a species of horseshoe crab, a kind of marine and brackish
Atlantic_horseshoe_crab
Chemical used for the detection and quantification of bacterial endotoxins
Limulus amebocyte lysate (LAL) is an aqueous extract of motile blood cells (amebocytes) from the Atlantic horseshoe crab Limulus polyphemus. LAL reacts
Limulus_amebocyte_lysate
Family of basal chelicerates
organism against pathogens. Amebocytes from the blood of Limulus polyphemus are used to make Limulus amebocyte lysate (LAL), which is used for the detection
Horseshoe_crab
Chinese Snack
is limulus. Limulus is an ancient animal which has existed for a history and is called the “living fossil”. Therefore, the preservation of limulus is
Hao_kuih
Class of enzymes
enzyme is activated upon cleavage at the Arg98-Ile99 bond by Limulus clotting factor B or Limulus clotting factor G. The active clotting enzyme consists of
Limulus_clotting_enzyme
Order of marine chelicerates
Developmental ecology of the American horseshoe crab Limulus polyphemus "Metamorphosis of Limulus Polyphemus Trilobite Larvae: Role of Chemical and Structural
Xiphosura
Species of arthropod
tridentatus and Carcinoscorpius rotundicauda. The fourth living species, Limulus polyphemus, is found in the Americas. The last common horseshoe originates
Tachypleus_gigas
Limulus clotting factor overbar C (EC 3.4.21.84, factor C, limulus factor C) is an enzyme. This enzyme catalyses the following chemical reaction Selective
Limulus_clotting_factor_C
Species of fish
Eurycheilichthys limulus is a species of freshwater ray-finned fish belonging to the family Loricariidae, the suckermouth armoured catfishes, and the
Eurycheilichthys_limulus
Species of marine flatworm
Atlantic horseshoe crab, Limulus polyphemus, living in the horseshoe crab's book gills and around joints and legs. The common name Limulus leech is a misnomer
Bdelloura_candida
Species of mite
Veigaia limulus is a species of mite in the family Veigaiidae. "Veigaia limulus". GBIF. Retrieved 2020-01-25. v t e
Veigaia_limulus
Cell type in the circulatory system of invertebrates
prolate-to-fusiform shape. Limulus amebocyte lysate, an aqueous extract of amebocytes from the Atlantic horseshoe crab (Limulus polyphemus), is commonly
Amebocyte
Species of arthropod
Species: T. tridentatus Binomial name Tachypleus tridentatus (Leach, 1819) Synonyms Limulus tridentatus Leach, 1819 Limulus longispina van der Hoeven, 1838
Tachypleus_tridentatus
Protein family
by a Limulus clotting enzyme contained in the granular hemocyte cells of the hemolymph. A pathway is initiated in which ultimately the limulus clotting
Coagulin
Visual organs possessed by arthropods
annelids and bivalves also have apposition eyes. They are also possessed by Limulus, the horseshoe crab, and there are suggestions that other chelicerates
Arthropod_eye
Species of arthropod
have not been as well documented as those of the North American species Limulus polyphemus. All four extant species of horseshoe crabs are anatomically
Mangrove_horseshoe_crab
Extinct genus of arthropod
†Weinbergina †Venustulus †Lunataspis Limulidae †Yunnanolimulus Tachypleus gigas Limulus polyphemus Pycnogonida †Flagellopantopus †Palaeoisopus Pycnogonum litorale
Urokodia
bond in limulus proclotting enzyme to form active clotting enzyme This enzyme is present in the hemocyte granules of the horseshoe crabs Limulus and Tachypleus
Limulus_clotting_factor_B
American physician
release in the horseshoe crab, Limulus polyphemus. Biol Bull. 1985;169:661-674. Roth RI, Levin J, Behr S. A modified Limulus amebocyte lysate test with increased
Jack_Levin_(hematologist)
Type of mating behavior exhibited by some externally fertilizing species
female in all species, and the second pair is also employed in all but Limulus polyphemus. A male horseshoe crab develops modified claspers during sexual
Amplexus
Extinct genus of arthropods
described by Kutorga were quite distinct from Limulus, and thus a new genus was named to contain Limulus oculatus, dubbed by D'Eichwald as Campylocephalus
Campylocephalus
Phylum of invertebrates with jointed exoskeletons
food additive. The blood of horseshoe crabs contains a clotting agent, limulus amebocyte lysate, which is now used to test that antibiotics and kidney
Arthropod
Chemical element with atomic number 29 (Cu)
carrier in most mollusks and some arthropods such as the horseshoe crab (Limulus polyphemus). Because hemocyanin is blue, these organisms have blue blood
Copper
Class of molecules found in the outer membrane of Gram-negative bacteria
detecting presence of endotoxin is the Limulus amebocyte lysate (LAL) assay, utilizing blood from the horseshoe crab (Limulus polyphemus). Very low levels of
Lipopolysaccharide
Extinct species of horseshoe crab
Zinken. 1862. Limulus decheni aus dem Braunkohlensandstein bei Teuchern. Zeitschrift für die Gesammten Naturwissenschaften 19:329-331 "Limulus decheni (Zinken
Tachypleus_decheni
Medical researcher
Bang (1916–1981) was an American medical researcher who developed the Limulus amebocyte lysate (LAL) test for bacterial endotoxins. He was influential
Fred_Bang
annelids and bivalves also have apposition eyes. They are also possessed by Limulus, the horseshoe crab, and there are suggestions that other chelicerates
Eye
Genus of horseshoe crab relatives
near Solnhofen, Bavaria, Germany. Originally assigned to the living genus Limulus, they are related to and look virtually identical to modern horseshoe crabs
Mesolimulus
Inflammation of membranes around the brain
but it may be used if other tests are not diagnostic. Similarly, the limulus lysate test may be positive in meningitis caused by Gram-negative bacteria
Meningitis
Resilient and smooth elastic tissue present in animals
The most studied cartilage in arthropods is the branchial cartilage of Limulus polyphemus. It is a vesicular cell-rich cartilage due to the large, spherical
Cartilage
Class of extinct, Paleozoic arthropods
oxygenates the hemolymph, comparable to the book gill in modern horseshoe crab Limulus. In Olenoides, the partially articulated junction with the body is distinct
Trilobite
Type of lung commonly found in arachnids
segmented lamellae. Book gills are still present in the marine arthropod Limulus (horseshoe crabs) which have five pairs of them, the flap in front of them
Book_lung
Subphylum of arthropods
the meat a bad taste. Horseshoe crab blood contains a clotting agent, Limulus amebocyte lysate, which is used to test antibiotics and kidney machines
Chelicerata
Species of fruit and plant
Rubus recurvans Blanch. 1904 Synonyms Rubus cauliflorus L.H.Bailey Rubus limulus L.H.Bailey Rubus perfoliosus L.H.Bailey Rubus pityophilus S.J.Sm. ex L
Rubus_recurvans
Class of arthropods
P T J K Pg N Reconstruction of Eurypterus (Eurypterida) Five views of Limulus polyphemus (Xiphosura) Scientific classification Kingdom: Animalia Phylum:
Merostomata
Process of formation of blood clots
PMID 15170505. S2CID 24537601. Iwanaga, S (May 2007). "Biochemical principle of Limulus test for detecting bacterial endotoxins". Proceedings of the Japan Academy
Coagulation
Village in Ardabil province, Iran
people in 34 households. Iran portal Also romanized as Līmlū; also known as Līmūlū OpenStreetMap contributors (11 May 2025). "داش بلاغ, زال قلی کندی, دهستان
Limlu,_Ardabil
robustus, Godzillius. Crustacea.net (2 October 2002) Horseshoe Crabs, Limulus polyphemus at. Marinebio.org Sea spiders Facts, information, pictures.
Largest_and_heaviest_animals
Organism resembling a form long shown in the fossil records
Błażejowski, Błażej (2 October 2014). "The Horseshoe Crab of the Genus Limulus: Living Fossil or Stabilomorph?". PLOS ONE. 9 (10). e108036. Bibcode:2014PLoSO
Living_fossil
Limulus polyphemus
List_of_xiphosuran_genera
Capacity of an excited neuron to reduce activity of its neighbors
Hartline revisited this concept of lateral inhibition in horseshoe crab (Limulus polyphemus) eyes, during an experiment conducted with the aid of Henry
Lateral_inhibition
Genus of horseshoe crab relatives
Xi-Guang (ed.). "Critical re-evaluation of Limulidae uncovers limited Limulus diversity". Papers in Palaeontology. 7 (3): 1525–1556. Bibcode:2021PPal
Tachypleus
Measure the amount of a target entity
ex vivo part of an organ (e.g. a segment of an intestine). tissue (e.g. limulus lysate) cell (e.g. platelets) Ligand binding assay when a ligand (usually
Assay
Geologic formation in Poland
Limulus, example of Limuloid
Drzewica_Formation
English biologist and palaeontologist (1804–1892)
found. Owen envisioned a resemblance of the animal to the living arthropod Limulus. Most of his work on reptiles related to the skeletons of extinct forms
Richard_Owen
Alternative term for cytoplasm or cytoplasm and nucleoplasm
1126/science.73.1902.648. PMID 17814367. Munson, J. P., 1899 The Ovarian Egg of Limulus. Athenaeum Press, Boston, Massachusetts Bargmann, W. (1956). "Über einige
Protoplasm
Upogebia affinis (coastal mud shrimp) Squilla empusa (Atlantic mantis shrimp) Limulus polyphemus (Atlantic horseshoe crab) Illex illecebrosus (northern shortfin
List of animals of Long Island Sound
List_of_animals_of_Long_Island_Sound
Topics referred to by the same term
Indiana Horseshoe Tavern, a bar in downtown Toronto Atlantic horseshoe crab, Limulus polyphemus Horseshoe crab, a marine arthropod Horseshoe bat Horse Shoes
Horseshoe_(disambiguation)
Removal of pyrogens from solutions
endotoxin level. Currently, one common method for endotoxin detection is the Limulus amebocyte lysate (LAL) test. This test is based on Dr. Frederik Bang's
Depyrogenation
Peruvian ecologist
"Assimilation Efficiency of Sanderlings (Calidris alba) Feeding on Horseshoe Crab (Limulus polyphemus) Eggs" and "Ecology and Energetics of Sandlerlings Migrating
Gonzalo_Castro_de_la_Mata
Berry and plant
Bailey Rubus leggii H.A.Davis & T.Davis Rubus libratus L.H.Bailey Rubus limulus L.H.Bailey Rubus litoreus L.H.Bailey Rubus missouricus L.H.Bailey Rubus
Rubus_pensilvanicus
Extinct order of crustaceans
Hermann von Meyer described a species of trilobite, albeit in the genus Limulus, and later transferred it to a new genus, Halicyne, recognising that it
Cyclida
American scientist (1902–1999)
Arbacia Punctulata" (1929, with Marie A. Hinrichs) "Rate of Heart-Beat in Limulus as Affected by Exposure to Ultraviolet Point Radiation" (1930, with Marie
Ida_Genther_Schmidt
entitled A Study of the Dynamic Properties of the Generator Potential of the Limulus Photoreceptor. His MS and PhD were both under Richard W. Jones. Pinter
Robert_B._Pinter
Dolichancistrus pediculatus Epactionotus gracilis Etsaputu relictum Eurycheilichthys limulus Farlowella knerii Harttia longipinna Hemipsilichthys papillatus Hypostomus
List_of_least_concern_fishes
Proposed clade of arthropods
Ꞓ O S D C P T J K Pg N Fossil of Leanchoilia superlata, a megacheiran Limulus polyphemus, a xiphosurid chelicerate Scientific classification Kingdom:
Cheliceromorpha
Form of jointed appendage of arthropods
also found in spiders and is specialised for predation and mating. In Limulus, there are no metatarsi or pretarsi, leaving six segments per leg. The
Arthropod_leg
Production of agriculture products from cell cultures
biosynthetic horseshoe crab blood production. Horseshoe crab blood contains limulus amebocyte lysate (LAL), which is the gold standard in validating medical
Cellular_agriculture
earning a PhD in 1897 with a study of the egg of the horseshoe crab (Limulus). From 1889-91 Munson taught English at Lutheran Normal School in Sioux
John_P._Munson
Lingula anatina lamp shell brachiopoda 797 59.0 74.3 52.8 XP_013382479.1 Limulus polyphemus Atlantic horseshoe crab arthropoda 797 49.5 65.0 70.3 XP_013782563
Small integral membrane protein 14
Small_integral_membrane_protein_14
Protein family
binding to phosphocholine. CRPs have also been sequenced in an invertebrate, Limulus polyphemus (Atlantic horseshoe crab), where they are a normal constituent
Pentraxins
Colombian-Ecuadorian cartoonist
(3 August 2015). "Powerpaola Dibujos nómadas y autobiografía ficticia". Límulus (in European Spanish). Archived from the original on 27 March 2023. Retrieved
Power_Paola
Extinct genus of horseshoe crab
conservation and science communication, whose name was combined with "Limulus", the most well documented living genus of horseshoe crab. The specific
Attenborolimulus
oligopeptidase B EC 3.4.21.84: limulus clotting factor C EC 3.4.21.85: limulus clotting factor B EC 3.4.21.86: limulus clotting enzyme EC 3.4.21.87: Now
List_of_EC_numbers_(EC_3)
Genus of single-celled organisms
lanceolatus (Kofoid) F.Gómez Tripos leptosomus (Jörgensen) F.Gómez Tripos limulus (Pouchet) F.Gómez Tripos lineatus (Ehrenberg) F.Gómez Tripos longinus (Karsten)
Tripos_(dinoflagellate)
the Richardson Park Learning Center. 1999 Marine animal Horseshoe crab Limulus polyphemus Officially adopted in recognition of its importance and value
List of Delaware state symbols
List_of_Delaware_state_symbols
Material derived from non-human animal body
similar purposes as emu oil) Horn, including antlers etc. Ivory Lanolin Limulus amebocyte lysate (a chemical in horseshoe crab blood used to detect bacterial
Animal_product
Genus of beetles
liebkei Straneo, 1958 Agra ligulata Liebke, 1940 Agra lilu Erwin, 2000 Agra limulus Erwin, 1982 Agra lindae Erwin, 2000 Agra littleorum Erwin, 1984 Agra liv
Agra_(beetle)
Study of animal behavior and its underlying mechanistic control by the nervous system
developed a time-dependent model for the retina of the horseshoe crab Limulus polyphemus on a Connection Machine (Model CM-2). Instead of feeding the
Neuroethology
and glucan are detected with the Limulus amebocyte lysate (LAL) enzyme cascade, derived from the horseshoe crab Limulus polyphemus. Lipoteichoic acid is
LOCAD
Ratio of number of genes per number of base pairs
Limulus_polyphemus/latest_assembly_versions/GCF_000517525.1_Limulus_polyphemus-2.1.2". ftp.ncbi.nih.gov. Retrieved 2020-11-30. "Limulus polyphemus
Gene_density
Protein domain
crosslinking protein scruin, is localized to the acrosomal vesicle of Limulus sperm". J. Cell Sci. 108 (10): 3155–3162. doi:10.1242/jcs.108.10.3155.
Kelch_motif
Extinct monotypic genus of Carboniferous arthropods
45–66. Brockmann, H. Jane (1990). "Mating Behavior of Horseshoe Crabs, Limulus polyphemus". Behaviour. 114 (1/4): 206–220. doi:10.1163/156853990X00121
Prolimulus
behavioral epidemiologist Betsy Bang – biologist Fred Bang – developed the Limulus amebocyte lysate (LAL) test for bacterial endotoxins David P. Baker – sociologist
List of Johns Hopkins University people
List_of_Johns_Hopkins_University_people
Marine education and research center in Alabama, United States
Red-eared slider (Trachemys scripta elegans). Atlantic horseshoe crab (Limulus polyphemus). Cannonball jellyfish (Stomolophus meleagris). Air Defense
Dauphin_Island_Sea_Lab
Prevention of interplanetary biological contamination
triggered by non viable biological material so can give a "false positive". Limulus Amebocyte Lysate assay - detects lipopolysaccharides (LPS). This compound
Planetary_protection
laticrus Vaurie, 1967 c Metamasius leopardinus Anderson, 2002 i g Metamasius limulus Vaurie, 1967 c Metamasius lyratus Günther, 1941 c Metamasius maculiventris
List_of_Metamasius_species
Japanese fisheries biologist and cnidariologist
Note on the Coelomic Cavity of the Spider. (1894) On the Development of Limulus Longispina. (1893) On the Lasteral Eyes of the Spiders. (1893) On the Development
Kamakichi_Kishinouye
American boating magazine
the 2009 IRMA awards, Chesapeake Bay Magazine won the following: Gold - Limulus Lately - Nature Feature Bronze - Chesapeake Bay Magazine - Overall Art
Chesapeake_Bay_Magazine
Extinct genus of horseshoe crab relative
1017/S009483730000525X. Martinsson, Anders (15 July 1975). "Swimming and burrowing in Limulus and Mesolimulus". Fossils and Strata. 4: 281–290. doi:10.18261/8200049639-1975-18
Alanops
Species of bird
Northeast Region, U.S. Fish and Wildlife Service. The Horseshoe Crab Limulus polyphemus A Living Fossil; Archived 11 October 2022 at the Wayback Machine
Red_knot
Order of arthropods (fossil)
Gerhard (2003-02-01). "Development of the nervous system in the "head" of Limulus polyphemus (Chelicerata: Xiphosura): morphological evidence for a correspondence
Cheloniellida
Topics referred to by the same term
moth of North America Polyphemus (crustacean), a genus of cladocerans Limulus polyphemus, the Atlantic horseshoe crab Mecynorhina polyphemus, a species
Polyphemus_(disambiguation)
Protein domain
analysis of the gene for arginine kinase from the chelicerate arthropod, Limulus polyphemus: insights into catalytically important residues". Biochim. Biophys
ATP:guanido phosphotransferase family
ATP:guanido_phosphotransferase_family
Jurassic fossil-bearing deposit in central Poland
correlations. A particularly important find is that of a Jurassic species of Limulus, which considerably extends the stratigraphic range of this genus. An educational
Owadów–Brzezinki_site
Protein-coding gene in the species Homo sapiens
and are also found in distant invertebrates such as the horseshoe crab (Limulus polyphemus). GRCh38: Ensembl release 89: ENSG00000132703 – Ensembl, May
Serum_amyloid_P_component
American scientist (1936–2025)
Levi-Setti; D.A. Park; R. Winston (1975-01-10). "The corneal cones of Limulus as optimised light concentrators". Nature. 253 (5487): 115–116. Bibcode:1975Natur
Roland_Winston
Region in Canada and United States
sparsa), dwarf wedgemussel (Alasmidonta heterodon), Atlantic horseshoe crab (Limulus polyphemus), Kenk's amphipod (Stygobromus kenki), and northern red-bellied
Atlantic_Northeast
US evolutionary quantitative geneticits
ISSN 0024-4066. Riska, Bruce (1981). "Morphological Variation in the Horsehoe Crab Limulus polyphemus". Evolution. 35 (4): 647–658. doi:10.2307/2408237. ISSN 0014-3820
Bruce_David_Riska
Evolution on a scale at or above the level of species
Błażejowski, Błażej (2 October 2014). "The Horseshoe Crab of the Genus Limulus: Living Fossil or Stabilomorph?". PLOS ONE. 9 (10) e108036. Bibcode:2014PLoSO
Macroevolution
Extinct genus of arthropods
from the Living. Springer Science & Business. p. 77. ISBN 978-9401787208. "Horseshoe Crabs, Limulus polyphemus". MarineBio.org. Retrieved 2018-03-21.
Salteropterus
unique laser that can extinguish fire, freeze water, and explode rock. Limulus - A trilobite-like Bakugan. Longfly - A fly-like Bakugan. Lumitroid - A
List_of_Bakugan
Protein-coding gene in the species Homo sapiens
scapularis Ixodida Deer tick XP_002403181.1 165 aa 28.80% 44.20% 797 Adissp Limulus polyphemus Xiphosura Atlantic horseshoe crab XP_022257482.1 173 aa 28.80%
Adipose-secreted signaling protein
Adipose-secreted_signaling_protein
Geological formation in England
Xi‐Guang (ed.). "Critical re‐evaluation of Limulidae uncovers limited Limulus diversity". Papers in Palaeontology. 7 (3): 1525–1556. doi:10.1002/spp2
Northampton_Sand_Formation
Protein found in humans
914 46% 9 Rhincodon typus Whale shark 465 MYA XP_020372543.1 713 65% 10 Limulus polyphemus Spider 794 MYA XP_022245667.1 796 21% 11 Trichoplax adhaerens
Zinc_finger_protein_800
ribotyping MeSH E05.200.875.150.125.890 – serotyping MeSH E05.200.875.150.570 – limulus test MeSH E05.200.875.220 – colony count, microbial MeSH E05.200.875.595
List_of_MeSH_codes_(E05)
Genus of mites
lanceolatus (Tseng, 1995) Parasitus latobacoides Karg, 1998 Parasitus limulus Tseng, 1995 Parasitus loricatus (Wankel, 1861) Parasitus lunariphilus Makarova
Parasitus
Articles "The Nature of the Reducing Substances in the Blood Serum of Limulus Polyphemus and in the Serum, Cerebrospinal Fluid and Aqueous Humor of Certain
Frank_Fremont-Smith
Italian painter (born 1941)
rays and shells and also sea birds. He also makes some moulds of a large "Limulus Poliphemus" (an Arthropod from the Lower Triassic) which are then transformed
Paolo_Carosone
travel, tourism, insurance
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travel, tourism, insurance