PHALERIDIN^. 
Cerorhina  Pr.  Bonap.* 
BUI  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  goii)  >  curved  upwards  to  the  tip,  which  is  turned  downwards;  the  nostrils  lateral,  pierced 
in  the  bony  covering  of  the  nasal  groove,  with  the  opening  linear  and  exposed.  Wings  short  and 
pointed,  with  the  lirst  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  typical  species  of  this  genus  is  found  in  the  Northern  Pacific,  anil  on  the  islands  situated  between  America  and 
Asia.    Its  habits  and  manners  are  very  similar  to  those  of  the  former  genus. 
C.  ocoidentalis  Pr.  Bonap.  Syn.  Birds  of  U.  States,  p.  428. —  Pha-  I  Atlas,  t.  12.;  Alca  monocerata  Pall.  Zoogr.  ii.  p.  362.,  Audub.  B. 
leris  eerorbyncha  Pr.  Bonap.  ;  Chimerina  cornuta  Esch.  Zool.  1  of  Amer.  pi.  402.  f. 
*  Established  by  the  Prince  of  Canino  in  1828  {Syn.  B.  of  U.  States,  p.  427.)  ;  in  1831  bis  Highness  changed  this  word  to  Ceratorrhina. 
Chimerina  of  Eschscholtz  (  1  82J))  is  synonymous. 
February,  1848. 
