
 
        
         
		form  o f the  brain-cavity  and  form  of  th e  beak,  the  skull  of  
 L . E le c tra , b u t  it  differs  from  it  in  the  beak  being ra the r  
 more  acute  in  front  and  more  contracted on  the middle  of  
 the  sides,  an d  iu being ra th e r smaller  in  size.  I t  may only  
 be  a  variety  o f that  species. 
 Sknll,  length  entire  
 „   o f nose  
 „  o flow e rjaw   
 Width  a t orbit  .... 
 „   a t  notch  .... 
 „   middle  o fb e a k   
 T h e   E s c i ik ic h t s . 
 16-9  inches & lines.  
 9'0  
 12'6  
 8-9  
 4'9  
 3.4 
 Lagenorhynchus  acutus.  
 De lphinus  acutus.  Gray,  Spec.  Zool.  1,  2,  from  a  skull.  
 D. E scb ric h tii,  Schlegel, Ahh.  23,  t.  1  S  2 , /   4, t.  4 , / .  5.  
 Body  -------------- ? 
 Tee th  4 4 ;   »ose  o f skull  h a lf  its  length  and  nearly  twice  
 as  long  as wide  a t th e   notch ;  lower jaw   obliquely trunca ted  
 in  front. 
 In h ab .  North  Sea, Faroe  Islands, Eschricht. 
 Skulls  and  skeleton  in  the  Leyden Museum— 
 Length  entire  7  2  inches and lines. 
 „  of skull  0  IG 
 T h is   species was  first  described  by  me  from  a  skull i  
 Brooks’now a t Leyden, and Mr. Schlegel  
 h a s  described  it   from  a  skeleton  sent  from  the Faroe  Ts- 
 Brooks’ museum, which is ii 
 lauds.  I t   differs from  the  other  species  of the  genus  in  the  
 nose  o f the  skull  being  more  slender  and the  teeth more  
 numerous.  The  tee th  series,  as  in  L . E le c tra   and L . Asia,  
 do  n o t reach  to  the  notch  which  separate,  the  beak  o f  the  
 skull  from  the brain-cavity. 
 Professor E sch ric h t informs  me  this  species  is very like  
 7).  leucopleiirus. 
 D e l p h in a p t e r u s ,  part.  Blainv.  not Lacep. 
 Delphinus,  Lacep. 
 H e a d   ra th e r  convex,  shelving  towards  th e   nose.  Nose  
 ra the r  produc ed,  obscurely  divided  from  tlie  forehead.  
 Dorsal  fin  none.  Back  rounded.  P ectoral  oblong,  rather  
 slender.  Skull moderate.  Beak broad,  depressed, tapering,  
 rounded  above.  T h e   triangle  before  th e  blower,  elongate,  
 extending  nearly  to  the middle  of  the  beak.  P a late  flat.  
 Teeth  conical,  tapering,  acute,  curved.  Symphysis  of the  
 lower jaw  short. 
 The  P e r o n .  Delphinapterus  Peronii. 
 Tab.  15. 
 De lphinus  Peronii,  Lacep. 
 Delphinapte rus leucorhamphus,Pej’t)?i, Lesson, Voy.  Coq.  
 i.  9,  f .   1,  cop.  F.  Cuvier,  Cetac.  t.  J a rd in e ,  N . 
 L ib .  t.  Cuv.  Oss. Foss.  v.  t.  2 1 ,/.  5,  6,  skull. 
 D.  bicolor,  Stephenson, M S S .  Icon.  ined. 
 T e e th   44  4 ^ ;   b la c k ;  beak,  pectoral  fins,  u nder part  of  
 body white. 
 Skull  in Mus. Paris.  Length  18.3, o fb e a k   10.0, of teeth  
 line 8'G,  o f lower  jaw   14'6.  Width  a t  orbit  9'0,  a t notch  
 4-7,  a t middle  o fb e a k   2'7 ;  teeth  4|.,  small,  slender,  six  in  
 an  inch ;  beak  broad, depressed,  ra the r  tapering  in  front,  
 the  sides  spongy,  the  centre  hollow,  filled with  cartilage, 
 broader  in  front,  flaltened  b e h in d ;  triangle  extending  
 nearly to  the middle o f the  length  o f the beak ;  orbit  rather  
 shelving  above  and  slightly  thickened  on  the  edge ;  palate  
 flat  in  front,  ra the r  convex  b ehind,  without  any  groove  on  
 the  sides;  lower jaw gradually tapering,  angularly shelving  
 and  flat  on  the  sides  iu  fr o n t;  symphysis  short,  not  two  
 inches. 
 There  is  a   second  skull,  brought  by  M.  ITousard,  in  
 1822,  which  is  ra th e r  more  depressed  iu  the  middle  in  
 front,  and with  tho  triangle  re aching near  to  the middle  of  
 the  beak ;  tee th  44 ,  length  entire,  17--G,  of  beak  9 '6,  of  
 lower jaw   14-6,  width  a t notch  4-3,  a t middle  of the beak  
 2 '6.  Orbits  ra the r shelving  above  and  slightly  thickened  
 on  th e  edge. 
 Cuvier ju stly  observes the beak  of Lesson’s  ( Voy.  Coq.  t.  
 9)  figures  is  too  pointed.  Lesson  also  represents  the  
 black  as  only  occupying  the  upper  part  o f the  back,  as  represented  
 jn  figure  4,  copied  from  his  plate.  1  have  
 therefore  given  a  new  figure  o f  th e   species,  copied  from  a  
 drawing,  the  natural  length,  kindly  given  to me  by W.  
 Wilson  Saunders, E sq .,  o f  Lloyd’s,  which  was  made  by   
 Dr.  Stevenson,  during  the  voyage  o f  the  ship  Glenarn,  
 Capt.  Guy, in la t.  46°  48' S.,  long.  142° west, Jan.  12,  1844. 
 D e l p h in u s ,  L in n .  Delphinorhynchus, part.  Lesson. 
 Cephalorhynchus,  F.  Cuv. 
 Forehead  rounded.  Nose  produced,  bald.  Dorsal  fin  
 falcate,  in  the middle  o f  the  back.  Skull with  the hinder  
 wings  of  maxilla  horizontal,  sometimes  thickened  on  the  
 edge  over the  orbit.  Nose  elongate,  tapering,  depressed,  
 broader  than  high,  convex,  roundish  above,  and  slightly  
 concave  in  front  o f  th e   blow'ers,  nearly  parallel  on  the  
 sides  and  rounded  in  front.  Teeth small,  conical,  extending  
 th e   greater  p a rt  of  the  length  of  the  jaw. 
 Most maritime  persons  call  these  animals  Bottle-noses,  
 Bottle-heads,  Floundev-heads,  Grampuses,  Porpoises  or  
 Porpusses,  sometimes  adding Whale  lo  the  name.  They  
 generally confine the name of Dolphin (most used by  landsmen) 
   to  the Scomberoid  fish  {Co7yph<ena),  which  changes  
 colour  in  dying. 
 A.  H e a d  shoi-tly  beaked.  Nose  o f  skidl modei-ate.  T r iangle  
 elongate,  produced  before  ihe  teeth  line.  Palate  
 f ia t. 
 * B ea k   scarcely produced.  Nose  o f sku ll i-ather depressed, 
   scarcely  longer  th a n   ihe brain-cavity.  Cephalorhynchus, 
   F.  Cuv. 
 Th e   H a s t a t e d   D o l p h in .  Delphinus Heavisidii. 
 De lphinus  Heavisidii,  Gray,  Spic.  Zool.  t.  2,  f .   6.  
 Schlegel. Ahh.  t.  Z ,f.  1—4,  t.  4 , / .   6 . 
 D. Capensis,  Cuv. B .  A.  289. 
 D. Dussumieri, Fischer. 
 D.  Cephalorhynchus,  F.  Cuv.  Cetac.  158. 
 Marsouin  du Cap, F.  Cuv. Mam.  L eih .  3. 
 D.  haslalus,  F.  Cuv.  Cetac.  161.  Rapp.  Cel.  t.  3. 
 Ph.  Homei,  and D.  tridens,  A.  Smith. 
 Black,  with  a  streak,  and  two  diverging  white  lines b e neath  
 ;  teeth  1 4 ;  nose  o f  skull  nearly  h a lf  the  length  of  
 h e a d ;  lower jaw  truncated  in  front. 
 Inhab.  S.  Sea,  Cape  of Good Hope. 
 There  is  a  skull, D.  Cephalorhijnchus,  in  the P aris Museum. 
   Beak  f l a t ;  p ala te  flat,  ra th e r  concave  b e h in d ;  
 teeth  ra the r b lu n t 44 ;  orbits  rather  sh e lv in g ;  symphysis  
 of the  lower jaw  very  short, ra th e r  keeled  below. 
 Skull,  lengtli  ....  11'3 inches  and  lines. 
 Beak  ..................  4-9 
 Width  a t  notch  ....  2 7 
 M.  Quoy’s  description  and  figure,  on  which  F.  Cuvier  
 founded  D.  haslatus,  vv'as  from  the  specimen  originally  
 described by  me,  and  now  transferred  from  the  College  of  
 Surgeons  to  the  British Museum. 
 This  species  has  some  cha rac ter  intermediate  between  
 Phocmia  and Delphinus. 
 D u s k y   D o l p h in .  Delphinus  obscurus. 
 Tab.  16.  Skull. 
 Delphinus  obscurus,  Gray,  Spic.  Zool.  t.  2 , /   2,  3. 
 D.  superciliosus,  Garnol,  Lesson,  Voy.  Coq.  t.  9 , / .   2  
 8i  F.  Cuv.  Cetac.  149?  Schlegel, Ahh.  22,  t.  1,  2 , f .   3,  t.  
 4 , /   4. 
 D. Fitzroyii,  Walei-house, Zool.  Beagle,  t.  10, Jun. 
 D.  obscurus  (var.),  Quoy,  Voy. Aslrol.  151,  t.  28. 
 Dauphin  a museau  courte,  Voy.  Pole  S u d ,  t.  22, f.  I. 
 ? D.  superciliosus, Lesson,  Voy.  Coq.  t.  9 , f .   2 ? ?' 
 Black, with  oblique,  diverging  streaks  on  th e  side,  and  
 beneath whitish ;  tee th  nose of skull  a b o u t l o f i t s 
 lengih  and nearly  2^  th e  length  o f  its width  a t th e notch ;  
 lower jaw   truncated  in  front. 
 Inhab.  Southern  Ocean,  Cape Heaviside. 
 Skull, length  entire  
 „   of nose  
 ,,  o flow e rjaw   
 W id th   a t  orbit  
 „   a t  notch  
 „   a t middle  of beak 
 Body, length  entire  ....  S 'l  feet & inches. 
 „  lo  dorsal  fiu  2T 
 Width o f tail  T2 
 M. Garnot’s  description,  as  given  by   F.  Cuvier,  is very  
 short,  but it  appears  to  fit th is  species.  The  D.  ci  iiiuseau  
 cou7-{  of the Voy.  a  P ole Sud  is said  to  have  44  t®eth.  It  
 is  evidently  this  species  as determined  by  the  examination  
 of the  skull  a t Paris,  and  there  is  a   skull  named D.  hivitta-  
 ius,  D’O rbigny,  1830.  Beak  quite  flat  ab o v e ;  triangle  
 to  near  the  middle  o f  the  b e a k ;  which  appears  to  be  
 only  a  variety  o f  this  species. 
 Length  of skull  
 „   beak  
 Width  a t  notch 
 14-0  inch  
 7-0  
 4.1 
 i  and  lines. 
 I h e   skull.  Da u p h in   d  iimseau  court,  in  the P aris Museum, 
   has  teeth  44.;  triangle  extends much  in  front  o f  the  
 tooth-line;  nasal  grooves wide  in front. 
 Skull, length  ....  14'6 
 Beak  8'0 
 Width  a t  notch  ....  3-6 
 The  skull  of this  species  is  intermediate in form between  
 the  Lagenorhijnchus and Delphinus. 
 The  C o m p r e s s e d -t a i l e d   D o l p h in .  De lphinus  
 compressicauda. 
 Phoczena  corapressicauda, Z<?sso??,  Cetac.  199.  F.  Cuv.  
 Cetac.  186  (from Gamo t MSS.). 
 'Teeth  44,  small,  conical,  hooked;  head  coloured;  belly  
 whitish  ;  pectoral  s h o rt;  upper jaw lo n g e s t;  nose  s h o rt;  
 base  of the  tail compressed  on  ea ch   side. 
 Inhab.  4°  south  lat.,  26°  east long,  o f Pari.s. 
 Animal,  length  to  pectoral  T 8  feet  &  inches.  
 Ex p an se   of tail  T 7 
 t t   B ea k  short.  Nose  o f  sku ll thick,  conical, coiivex above,  
 h a l f  as  long as  the head.  Tursio.  
 t   B ea k   o f  sku ll  ra th e r  th ic k   a n d  rather swollen  on  ihe  
 sides. 
 B o t t l e - n o s e   D o l p h in .  De lphinus Tursio. 
 Tab.  10.  Animal. 
 Delphinus Tursio,  O.  Fah.  Faun.  Groen.  49.  W r ig h t,  
 Mag. N .H .   ii.  18-38,  609.  Boniiat.  Cetol.  2 \. 
 D.  Nesarnak,  Lacep.  (Desm.  from  O.  Fah.). 
 De lphinus  truncatus,  Montague,  Wern.  Trans,  iii.  i.  5.  
 / .   3.  Skull. 
 Bottle-nose,  H u n te r ,  Ph il.  Trans.  Ixxxvii.  t.  18,  cop.  
 Bo n n a t.  Cetol.  i.  11,/.  1. 
 L ’Oudre, Bellon. 
 D. Vulgaive,  Camper,  Cetac.  35,  40. 
 Var.  ?  D.  Tursio,  Schlegel,  Abh.  i.  b , f .   1,  2,  t.  4 , /   9.  
 Black  (whitish beneath ?)  ;  teeth 44,  truncated when o ld ;  
 skull-nose  4  o f  entire  le n g th ;  intermaxillaries  very  convex, 
   forming  a  strong  rib  on  each  side  above ;  inlermax-  
 illa  aud  vomer forming p a rt  of  the  palate. 
 Inhab. North  Sea. 
 Mr. R . Templeton has sent me a  m ost accurate drawing of  
 a  specimen  caught  on  the  south  o f  Ireland,  in November,  
 1828:  he  named  it  D. Delphis.  Copied tab.  10.  Tho  
 following  are  its measurements :— 
 Length  entire 7 6 0 
 „   eyes 1 0 0 
 „  ear  ................. 1 2 5 
 „   pectoral 1 6 9 
 „   end of the pectoral  2 6 7 
 „   fronl  of the  dorsal 3 2 5 
 „   end o f dorsal 4 2 5 
 „   genital  organ 5 3 0 
 „   to  the  vent  .... 5 6 3 
 „   to  base  o f  tail 7 0 0 
 „  to  end  o f middle 
 of tail  .... 7 6 0 
 „  to  end  o f tail  fm 8 1 3 
 'The following  are  the measurements  o f  four  skulls,  the  
 first being Montague’s  specimen :— 
 Length  entire  2 1 6 
 „  o f  nose  11-6 
 „   o f teeth line  
 „  o flow e rjaw   
 Width  a t notch  5'9 
 ,,  a t  orbit  lO 'S 
 „   at middle  o f beak 
 2 T 0 2T0 2 1 0 
 1 2 0 12-0 11-6 
 9 9 10-0 10-0 
 18-6 
 5'0 5-6 5-9 
 10-6 10-6 
 3-6 4-6