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XX.  Description  of  a  New  Species  of  the  Gems  Eurylaimus  of  Dr.  Horsfield.  By 
Mr.  John  Gould,  F.L.S.    Communicated  hy  the  Secretary. 
Communicated  December  10,  1833. 
The  genus  Eurylaimus,  established  by  Dr.  Horsfield  for  the  reception  of  a  bird  dis- 
covered by  him  in  Java,  has  since  received  the  accession  of  a  second  species,  obtained 
in  Sumatra  by  the  late  Sir  T.  Stamford  Raffles.  To  these  I  am  now  enabled  to  add  a 
third,  derived  from  a  different  though  neighbouring  locality,  and  especially  remarkable 
for  the  elegance  of  its  plumage. 
M.  Temminck  has,  I  am  aware,  referred  to  this  group  two  other  species  ;  and  a  third 
has  recently  been  added  to  it  by  M.  Lesson,  who  has,  at  the  same  time,  proposed  the 
removal  from  it  of  one  of  those  placed  in  it  by  M.  Temminck.  On  each  of  these  I 
shall  venture  to  offer  a  few  observations. 
The  first  of  M.  Temminck's  additions  is  the  only  species  which  has  at  any  time  been 
referred  to  the  Eurylaimi  from  among  the  birds  known  previously  to  the  researches  of 
Dr.  Horsfield  and  Sir  T.  S.  Raffles  in  Java  and  Sumatra :  it  is  the  great-billed  Tody  of 
the  first  edition  of  Dr.  Latham's  '  General  Synopsis  of  Birds'',  a  name  translated  by 
Gmelin,  shortly  after  its  appearance,  into  Todus  macrorhynchos^ .  This  trivial  name  was 
not  adopted  by  the  original  describer  of  the  species,  who,  in  his  '  Index  Ornithologicus'-', 
applied  to  his  great-hilled  Tody  the  appellation  of  Todus  nasutus ;  and  nasutus  appears 
since  to  have  been  employed  by  all  ornithologists,  with  the  exception  of  M.  Desmarest, 
who  has  given  to  the  bird  the  name  of  Platyrhynchus  ornatus.  With  M.  Temminck  it 
became  the  Eurylaimus  nasutus.  But  the  largeness  and  convexity  of  the  bill  in  this 
bird,  the  oval  form  of  the  nostrils,  their  position  near  the  middle  of  the  bill,  and 
other  characters  deviating  from  the  structure  of  the  typical  Eurylaimus,  afford  reasons 
against  its  being  associated  with  that  genus,  and  in  favour  of  regarding  it  as  constituting 
a  distinct  type  of  form.  As  such  it  has  been  regarded  by  Dr.  Horsfield  and  Mr.  Vigors, 
who,  in  the  Appendix  to  the  '  Life  of  Sir  T.  Stamford  Raffles''*,  have  characterized  under 
the  name  of  Cymbirhynchus,  the  genus  to  which  it  belongs.  It  is  consequently  the 
Cymbirhynchus  nasutus,  Vig.  and  Horsf. 
M.  Temminck's  second  addition  to  the  genus  is  the  Eurylaimus  Sumatranus,  Vig.  and 
Horsf.,  originally  described  under  the  name  of  Coracias  Sumatranus,  by  Sir  T.  Stam- 
ford Raffles  in  his  '  Descriptive  Catalogue  of  a  Zoological  Collection  made  in  Sumatra', 
published  in  the  '  Transactions  of  the  Linnean  Society'^.  In  figuring  this  bird  M.  Tem- 
'  Vol.  ii.  p.  664.  t.  30.  -  Linn.,  Syst.  Nat.  Ed.  13,  p.  446.  =  P.  268. 
*  P.  654.  5  Vol.  xiii.  p.  303. 
