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32.
As a result, it has been determined that lizards are closely related to snakes, horses to donkeys, dogs to cats, etc . This systematic position of Limulus was controversial for a long time, but has been found to show that human serum is more closely related to arachnids than to crustaceans.
33.
A latex agglutination test may be positive in meningitis caused by " Streptococcus pneumoniae ", " Neisseria meningitidis ", " Haemophilus influenzae ", " Escherichia coli " and " limulus lysate test may be positive in meningitis caused by Gram-negative bacteria, but it is of limited use unless other tests have been unhelpful.
34.
Other than the species previously mentioned, he also studied the nervous systems of corals, sea urchins, spirunculids, " Limulus ", " Aplysia ", starfish, rattlesnakes, rays, sharks, porpoises, sea lions, cuttlefish, catfish, sloths, manatees, salamanders, frogs, turtles, hagfish, crayfish, tuna, ratfish, bats, crabs, octopodes, snakes, rats and humans.
35.
Some proteins known to contain a LCCL domain include Limulus factor C, an LPS endotoxin-sensitive trypsin type serine protease which serves to protect the organism from bacterial infection; vertebrate cochlear protein cochlin or coch-5b2 ( Cochlin is probably a secreted protein, mutations affecting the LCCL domain of coch-5b2 cause the deafness disorder DFNA9 in humans ); and mammalian late gestation lung protein Lgl1, contains two tandem copies of the LCCL domain.
36.
While it is clear that the American horseshoe crab " Limulus polyphemus " is distinct from the remaining extant species of horseshoe crab, relationships within the Asian horseshoe crabs remains uncertain . " T . gigas " has a chromosome number of 2 " n " = 28, compared to 26 in " T . tridentatus ", 32 in " Carcinoscorpius ", and 52 in " Limulus ".
37.
While it is clear that the American horseshoe crab " Limulus polyphemus " is distinct from the remaining extant species of horseshoe crab, relationships within the Asian horseshoe crabs remains uncertain . " T . gigas " has a chromosome number of 2 " n " = 28, compared to 26 in " T . tridentatus ", 32 in " Carcinoscorpius ", and 52 in " Limulus ".
38.
"E . limulus " shares with " E . pantherinus " a single synapomorphy : the derived presence of seven branched pectoral fin rays . " E . limulus " is distinguished from " E . pantherinus " by a more narrow body, head and dorsal trunk with series of longitudinal light stripes ( versus scattered dark blotches ), and presence of an accessory ceratobranchial flange and filamentous gill rakers ( versus absence of those features in " E . pantherinus " ).
39.
"E . limulus " shares with " E . pantherinus " a single synapomorphy : the derived presence of seven branched pectoral fin rays . " E . limulus " is distinguished from " E . pantherinus " by a more narrow body, head and dorsal trunk with series of longitudinal light stripes ( versus scattered dark blotches ), and presence of an accessory ceratobranchial flange and filamentous gill rakers ( versus absence of those features in " E . pantherinus " ).
