PHALERIDIN^. 
Cerorhina  Pr.  Boriap.* 
Bill  shorter  than  the  head,  and  much  compressed,  with  the  base  covered  by  a membrane,  surmounted 
by  a long,  obtuse,  horn-like  process  above  each  nostril;  the  culmen  curved  to  the  tip,  which  is 
emarginated;  the  gonys  curved  upwards  to  the  tip,  which  is  turned  downwards;  the  nostrils  lateral,  pierced 
in  the  bony  covering  of  the  nasal  groove,  Avith  the  opening  linear  and  exposed.  Wings  short  and 
pointed,  with  the  first  quill  the  longest.  Tail  very  short,  and  rather  rounded.  Tarsi  one  third  shorter 
than  the  middle  toe,  and  rather  compressed.  Toes  long,  the  anterior  ones  united  together  by  an  entire 
web  ; the  claws  moderate  and  compressed. 
The 
Asia. 
typical  species  of  this  genus  is  found  in  the  Northern  Pacific,  and  on  the  islands  situated  between  America  and 
Its  habits  and  manners  arc  very  similar  to  those  of  the  former  genus. 
C.  occidentalis  Pr.  Bonap.  Syn 
leris  cerorhyncha  Pr.  Bonap.  ; 
Birds  of  U.  States,  p.  428. — Pha- 
Chimerina  cornuta  Psc/i.  Zool. 
Atlas,  t.  12.;  Alca  monocerata  PaS. 
of  Amer.  pi.  402.  f. 
Zoogr.  ii.  p.  362.,  Audub.  B. 
CMmerina  of  Eschscholtz^'l^gp)  k^synonymous!  Highness  changed  this  word  to  Ceratorrhna 
February,  1848. 
