Mam . 515, confines the name De lphinus Orca to th e an imal
intcncled by the ancients, and characterizes it “ Museau
conformò cornine colui de Dauphin vulgaìre ; dents larges
et crenulées, sur Icurs bords,” b ein g a translation of Arte-
di (Gen. Piscium, 70, 3) “ D. rostro sursum repando, den-
tibus latis sevraiis.”
Professor E sch ric h t believes the Physeter microps o f O.
Fah. to be th e Killer, Dan. Trans, xii.
Th e LiNCOLNSurRE K il l e r . Orca cvassideus.
Phocrcna crassidens, Owen, B r it. Fossil Mam. b \6 , f.
2 1 3 ,2 1 6 ,2 1 4 .
Intermaxilla ries rugose in front. Tee th 4§, large, conical,
ra th e r acute (all b u t the front lower false), near to the
preorbital notch. Lower jaw very depressed and broad
in front a t the symphysis.
Inhab. F ens o f Lincolnshire, Fossil, Mus. Stamford
(now Mus. Col. Surg. ?)
Skull, lengtli entire .... 23 or 24'0
„ n o s e ............................... 12’6
„ te e th line .................... lO'O
„ lower jaw .................... 21'0
Breadth a t notch .................. 8'6
„ a t middle o f beak 8 0
„ o f intermaxillaries .... ó‘6
In the figure the beak is the length o f the base at
the notch and exactly the length o f the skull.
Th e C a p e K il l e r . Orca Capensis.
Tab. 9. Skull.
De lphinus globiceps, Cat. Mus. Col. Surg. 165, n.
1139. Gra n t, Proc. Zool. Soc. 1833, 65.
D. Orca, Owen, B r it. Fossil Mam . 516.
Skull flattish above, ra the r concave in th e middle before
the blowhole. Nose ra th e r convex on the side, ra th e r ta pering
in front. Teeth 44, very large, thick, nearly to the
preorbital notch, concave on each side, for the reception
o f the opposite teeth, o f th e front upper small, acute, front
lower large, worn down, rounded. Intermaxillaries rather
dilated, and broader over the front of th e nose, contracted
behind.
Inhab. Southern Ocean. Cape o f Good Hope, M. Vi-
lete (1818), Mus. Col. Surg. u. 1139. Northern Pacific
Ocean, Capt. D e lv itte , R . N.
Skull, length entire 37-0 36-6
„ o f nose 18-0 18'0
„ o fle e tlilin e 14-6 14-6
„ of lower jaw 29-6
Breadth a t notch .... 12'6 1 20
„ a t orbit 21.0 21-0
,, a t temple above 20'0
„ a t middle o f beak lO'O
„ o f intermaxillaries 3-9
„ in front 4-6
„ in middle 3-3
The skull in th e College of Surgeons appears to be
the one which Mr. Owen gives the measurement o f as Z>.
orca, in his account of Phocesna crassidens.
S m a l l K il l e r . Orca intermedia.
T ab . 8 . Skull.
De lphinus intermedius, Gray, Ann. Ph il. 1827, 396, not
Harlan.
Nose of skull h a lf the entire length. Teeth 44 long,
conical.
I n h a b .----------- ? Skull, British Museum.
This skull, which has all the appearance o f being that
of a full grown auimal, is ju s t one quarte r the length and
bre adth of the skull of the common Killer.
Skull, length entire 14'0 inches and lines.
„ of nose .... 7'0
„ o fte e lh lin e ..,, 5'6
„ o flowe rjaw IPO
Breadth a t orbits .... 8-3
„ a t notch .... 4'6
„ a t middleof beak '9
B. H e a d beaked. Nose o f sku ll longer than the brain-
cavity.
L a g e n o r h y n c h u s , Gray.
H e a d ra th e r convex, gradually sloping into tho beak in
front. Beak short, tapering in front. Lower jaw rather
longest. Body elongate, tapering b ehind, largest a t the
pectoral fins. Pectora l fins ra the r far back, ra the r elongate
and slightly falcate. Dorsal fiu high, falcate, rather
behind the middle o f th e back. T h e back with a low,
rounded, fin-like ridge near th e tail. Tail-lobes rather narrow,
elongate. Skull ra the r depressed, the hinder ends of
the maxillary bones expanded, horizontal, and rather
thickened on the edge. The nose is short, broad, flat above
an d rather narrowed in front, and scarcely longer than the
length of the brain-cavity. Tho triangle in front of the
blowers is elongate, and reaches beyond the middle o f the
nose of the skull, and the intermaxillaries arc separated by
a deep groove filled with cartilage.
This genus is easily known from Delphinus by the lovv-
ness o f the forehead, the short and depressed form of the
beak, the posterior position o f the dorsal fin, and tlie body
bein g attenuated behind. I t is a t once known by the
breadth, and flat, expanded form of the nose of the skull.
Th e os hyoides of L . leucopleurus is large and
broad.
* B ea k very short ; nose o f sku ll only as long as head ;
teeth n ea jjg to the notch.
W h i t e - s id e d B o t t l e -n o s e . Lagenorhynchus
leucopleurus.
Tab. 6. Fcetus, 12. Skull. #. 2 6 , / 3, tongue.
Del]jhinus leucopleurus, Rasch, Mag. J u l. 1843, 369.
Above bluish black, beneath white, with a large, oblique,
gray or white longitudinal streak on hinder part
o f each side. Teeth 44, small, acute, curved.
Skull : brain-cavity largo, high a t the top behind the
blow-hole -, nose nearly as long as the brain-cavity, gradually
and regularly tapering on each side ; triangle in front
of the blower flattened and concave behind, with a slightly
raised, lozenge-shaped space in the front half.
Inhab. North Sea, Gulph o f C hristiania.
Foetal specimen and skeleton, Brit. Mus.
The skull o f the skeleton in th e British Museum is at
once known from th e skull o f the L . albiroslris, a t Nor-
Th e foetus of this species has six bristles on eacli of the
upper lips, the hinder one being ra the r farther from the
rest than the others are apart, which are equally placed,
and of the same size. T h e tongue (tab. 2 6 , / 3 ), is flat 011
the top and as wide as the space between the sides o f tliu
jaws, with a regular sharp denticula ted edge on each side,
and with a ra the r larger, conical, separate • 7 , , . , , , . , ’ , c u u ie a i, s e p a i a ie ttuuubeeirCcJlee 1i1n1 Jfrioomnt..
ich, by being smaller, and the nose rather narrower, and The teeth arc not developed through the gums. The nose
e.usipfeiccii.aallllyv bbvy tthhee hhiinnddeerr np.aTrrtt. noff ttVhion intermaxillaries, which ;_____ i_. , .1 . 1 .1 A. ° ®
form the triangle in front o f the blower, being flattened
and concave instead o f swollen and convex.
Skull, length entire ... 16'0 inches & lines.
„ o f nose .... 8'6
„ o flow e rjaw 13’0
Breadth a t notch ' .... 8'3
„ .................... notch ....... 4-0
„ middle o fb e a k 2'9
** Bea k mode rate; nose o f s k u ll onlg as long as h e a d ;
teeth not quite to the notch.
W h i t e -b e a k e d B o t t l e -n o s e . Lagenorhynchus
albirostris.
Tab. 10. Animal, 11. Skull.
Delphinus Tursio, B r ig h tw e ll, Ann. N a t. Hist. 1846, 21
Delphinus albirostris, Graij, Ann. ^ Mag. N . H. 1846.
nearly 4 the length o f the distance between the end of
the nose and the eye. The hinder p a rt o f the back lias a
ra th e r thick convexity, like a long low rounded, second
dorsal fin ju s t before the tail ; th e same p a rt o f the foetus of
Delphinus [Delphis ?), and S to io f fiis c u s has the part
very much compressed, and fined off to a verv thin, knifelike
edge.
** Nose o f sku ll longer than ihe length o f the braiu-
cavity ; teeth-Une some distance f r o m the notch.
The E l e c t r a . L agenorhynchus Electra.
Tab. 13. Skull.
Skull ra the r depressed ; nose flattened above, ex p a n d ed
an d reflcxed on the side behind, ra the r shelving iu
front ; sides ra the r contracted in the middle, rather longer
than the head and 1| the length o f the width a t the
notch ; mtermaxillary broad, flattened, nearly f of the
Upper p a rt and sides very rich, deep-velvet, black, ex- 1w^ idt.h1,, w.i t•h a l,a rge, wide groove for the greater p a r.t. .o...f.. .i..t.s
ternal cuticle soft aud silky, so thin and delicate as to be concave behind, with a loeasily
rubbed off; nose, a well defined line above upper rugose space m the front half;
■ ■ ■ I T , , , fn , teeth I'atlier small, cylindrical, conical, slightly curved,
acute, four in an inch ; the lower jaw regularly converging,
straight on the sides in front, ra the r swollen behind,
and shortly obliquely truncated in front, the gonyx ra the r
produced.
I n h a b . ------------- > Skull, British Museum.
aw, the whole under jaw and belly cream-colour, varied
rith chalky white ; fins and tail b la c k ; teeth 4 | small,
cu rv ed ; jaw s moderately elongate, lower ra th e r '
blowhole horse-shoe-shaped and convex towards
the h e a d ; nose o f skull as long as Uic head cavity,
gradually and evenly tapering to a ra the r rounded point
m front, the edge ra th e r reflexed on each side b e h in d ;
the triangle in front o f the blower convex and swollen on
each side behind, smooth in front.
Inhab. North Sea, coast o f Norfolk.
Mus. Norwich.— Skeleton.
Through the kindness of Mr. Brightwell, I have been enabled^
to examine the skull o f this species, and to copy the
beautiful drawing o f tlie animal made by his daughter.
Animal, length entire
„ o f m outh .... 9'6 inches & lines,
„ o f nose to eye 13'0
„ to pectorals 20'0
„ o f pectoral .... lo'O
„ lo dorsal .... 41'0
„ o fd o rsal .... 11.6
He ig h t of dorsal .... lO'O
Width o fta ii .... 22'0
Skull, length entire .... I 8'0
„ of nose .... 8.6
Width a t orbit 9’5
„ a t notches 5’6
„ of middle o f beak3‘6
„ o flow e rjaw at
condyles 8'0
This skull is very like the former, but it is considcrablv
larger, and the nose is longer in proportion, and the head
is much more depressed in the middle and spread out 011
the sides.
Skull, length entire
„ of head
„ o f nose
„ o f teeth line ....
,, o flow e rjaw
Width of temple
„ a t notch
„ a t middle o fb e ak
„ of intermaxillary
17-6 inches & lines.
8-3
9'9
7-0
14-6
10-8
5-7
4'0
2-6
The A s ia . Lagenorhynchus Asia.
Tab. 14. Skull.
Skull nose ra th e r depressed, broad, flattened, rather contracted
in the middle of each side ; triangle concave, with
a slightly raised, flat, rugose space in the front h a lf; teeth
, smaillll..
Inhab. - — ? Skull, British Museum.
This species is only known from a skull without teetli.
I t very much resembles in the depressed and expanded