PROCELLARIN  I 
Puppinus  Bris8. ' 
Bill  as  long  as,  or  shorter  than,  the  head,  slender,  much  compressed,  and  grooved  obliquely  on  the 
sides;  the  tip  lengthened,  arched,  suddenly  hooked  and  aente  :  the  lower  mandible  somewhat  shorter 
than  the  upper,  with  the  apical  margin  and  gonys  equally  curved  with  the  upper,  the  latter  angulated 
beneath,  and  the  sides  longitudinally  grooved :  the  nostrils  basal,  elevated  above  the  culmen,  opening 
obliquely  in  two  tubes,  placed  side  by  side.  Wings  long,  slender,  somewhat  acute,  with  the  first  quill 
the  longest.  Tail  moderate  and  rounded,  composed  of  twelve  feathers.  Legs  moderate,  Avith  the  apical 
part  of  the  tibia  naked.  Tarsi  compressed  and  equal  in  length  to  the  middle  toe.  All  the  Toes  long, 
the  outer  equal  with  the  middle  one,  the  inner  shortest,  and  the  lateral  toes  margined  exteriorly  by  a 
narrow  membrane. 
Invariably  seen  at  sea  in  both  hemispheres,  seeking  their  food  during  the  evening  or  in  dark  and  tempestuous  days 
among  the  breakers,  or  even  diving  after  their  prey,  which  consists  of  putrid  fish  and  marine  worms.  They  possess 
great  power  of  flight,  which  enables  them  to  keep  on  the  wing  for  several  days;  and  they  have  also  a  remarkable  mode 
of  running  along  the  surface  of  the  wa\es,  when  in  search  of  food.  They  breed  in  company,  in  burrows  made  either 
by  small  animals  or  with  their  own  sharp  claws.    They  lay  but  one  egg,  and  the  young  are  covered  with  long  down. 
1.  P.  major  Faber,  Stor.  cleg.  Ucc.  pi.  366.,  Kuhl,  Monogr.  t.  11. 
f.  12.  —  Proc.  Puffinus  Linn.  PL  enl.  962  ,  Kuhl  t.  11.  f.  10. ;  Proc. 
grisca  Gmel.  Forst.  Icon.  ined.  t.  94.  ;  Puff,  fuliginosua  Strirkl.; 
Puff,  cinereus  A.  Smith,  111.  S.  Afr.  Zool.  pi.  56. 
2.  P.  leucoiuelas  Temm.  PI.  col.  587. 
3.  I'.  sericetu  Less.  Man.  d'Orn.  p.  402. 
4.  P.  tenuiroetris  Temm.  PL  col. 
5.  P.  pacificus  (Gmel.).—  Xcctris  fuliginosus  Sol.  MS.  Banks's 
Icon.  ined.  t  23.;  Proc.  fuligiuosa  Kuhl,  sp.  27- 
6.  I'.  munda  (Sol.)  Banks's  Icon.  ined.  t.  24. —  Proc.  munda 
Kuhl. 
7.  P.  aitimUU  Gould,  Proc.  Z.  S.  1837.  156.  —  Nectris  nugax 
Sol.  MS. 
8.  P.  chlororhynchus  Less.  Tr.  d'Orn.  6l3.  —  Puff,  sphenurus 
Gould  ;  Proc.  carbonaria  Sol.  MS.  ? 
<).  P.  carnipes  Gould,  Ann.  Nat.  Hist.  1844.  365. 
10.  P.  Anglorum  Ray,  Edwards's  Birds,  t.  359-  —  Proc.  Puffinus 
Briin.  ;  Puff,  arcticus  Faber. 
11.  P.  obscurus  (Gmel.)  Kuhl,  Monogr.  t.  11.  f.  11.,  Vieill.  Gal. 
des  Ois.  t.  301.  —  Proc.  yelcouan  Acerbi ;  Puff.  L'Herminieri  Less. 
12.  P.  cinereus  (Gmel.).  —  Proc.  inexpectata  Forst.  Icon.  ined.  t. 
02. ;  Proc.  melanura  Bonn.;  Type  of  Priofinus  Homb.  et  Jueq. 
1844. 
13.  P.  cequinoctialis  (Linn.)  Edwards's  Birds,  pi.  89.  —  Proc.  con- 
spicillata  Gould;  Proc.  fuliginosa  Sol.  MS.  Banks's  Icon.  ined. 
t.  19-,  White's  Journ.  pi.  p.  252.;  Proc.  atlantica  Gould. 
Thalassidroma  Vigors.^ 
Bill  shorter  than  the  head,  slender,  weak,  the  sides  much  compressed  and  slightly  grooved,  with  the 
tip  suddenly  hooked  and  acute ;  the  lower  mandible  shorter  than  the  upper,  the  tip  arched,  with  the 
gonys  hardly  angular  beneath;  the  nostrils  elevated  above  the  culmen  at  its  base,  tubular,  with  a 
single  aperture  in  front.  Wings  long  and  pointed,  with  the  first  quill  shorter  than  the  third,  and  the 
second  the  longest.  Tail  emarginated,  or  more  or  less  forked.  Legs  long,  slender,  with  the  naked 
space  of  the  tibia  extensive.  Tarsi  longer  than  the  middle  toe.  All  the  Toes  rather  short,  the  outer 
one  nearly  equal  with  the  middle,  and  the  inner  the  shortest  ;  the  hind  toe  only  in  the  form  of  a  trian- 
gular claw. 
These  small  birds  may  be  seen  during  their  irregular  rapid  flight  skimming  the  surface  of  the  sea  in  both  hemispheres, 
or  resting  their  light  bodies  on  the  top  of  the  water,  floating  with  the  waves  ;  during  heavy  gales  they  are  most 
active,  and  appear  to  walk  with  their  wings  expanded  on  the  top  of  the  waves.  They  feed  on  small  marine  animals 
and  sea  weeds,  and  will  follow  ships  an  immense  distance  for  any  greasy  substances  that  may  be  thrown  overboard  by 
the  sailors.    They  remain  during  clear  weather  concealed  in  holes  or  burrows,  and  only  come  forth  during  twilight. 
*  Established  by  Brisson  (Ornithologie)  in  1760:  yet  three  other  names  have  been  proposed,  viz.  ThieUw r  Gloger,  1827;  Neetris 
(Forst.)  Kuhl,  1820  ;  Cymotomus  Macgill.  1842  ;  and,  in  1844,  MM.  Hombron  and  Jacquemont  gave  that  of  Priofinus  for  two  of  the 
species. 
f  Mr.  Vigors  proposed  {Zoological  Journal)  this  name  in  1825,  being  unacquainted  with  the  fact  that  M.  Boie  had  separated  these 
birds  under  that  of  Hydrobates  in  1822,  which  name,  however,  cannot  be  adopted,  as  it  had  been  previously  used  by  Vieillot.  It  embraces 
the  Prince  of  Canino's  subgenus  Bulweria,  which  was  established  in  1842,  and  also  Oceanites  of  Count  Keyserling  and  M.  Blasius, 
which  was  proposed  in  1840. 
E 
