Here's what rhymes with conchostracans.
                        
                        
                    
                                cans  fans  clans  sans  pans  scans  vans  bans  mans  plans  spans  caravans  courtesans  Words that almost rhyme with conchostracans
gangs  cams  chance  dance  glance  dams  grams  hangs  lambs  lance  pangs  clams  fangs  grammes  rams  yams  askance  bangs  hams  jams  advance  finance  diagrams  romance  stance  exams  perchance  telegrams  trance  trams  enhance  expanse  epigrams  kilograms  milligrams  histograms  circumstance  calves  cabs  gals  has  hands  lands  bands  paths  bags  glands  halves  jazz  rags  sands  crabs  lads  pads  tags  crags  grabs  labs  lags  locales  tabs  fads  grands  pals  scabs  stands  commands  canals  valves  brands  flags  slabs  drags  stabs  stags  demands  whereas  expands  strands  borderlands  rationales  sepals  tramps  diaphragms  understands