n o tc h ; teeth conical, a c u t e , h e a d narrow, and rather
compressed a t th e orbit.
I n h a b . ?
We 1
!‘ 'I
5 two skulls of tins species, which is easily
known from th e former b y b ein g much move slender and
more a ttenua ted in front, an d by the head, though longer,
being 24 inches narrower over the o rb it; lower jaw nearly
straight below, united for more than 4 its length.
L ength, entire, ............. 20'G inches and lines.
„ o fn o s e .............. 13
„ o flow e rjaw , .... 17
„ o f symphysis, .... 64
W id th o f notch, ............. 8 ’6
„ a t orbit, ............. 6 ’9
This may be th e same as D. ro stratus, b u t the teeth are
more n um e ro u s; and Cuvier’s figure, w'hich he thought
might be B red a’s species, certainly much better re p re sents
a common In d ian species than this.
Var. 1. Nose ra th e r shorter and more depressed.
T h e A t t e n u a t e d -b e a k e d D o l p h in . Steno attenuatiis.
Tab. 28. Skull.
Delp h in u s attenualus. Gray, L is t Mam . B . M.
Nose o f skull 4 of entire length I 4 the length of the
skull, 2 | the length o f the width o f the notch, slender, ta pering
in fro n t; in ten n ax illarie s forming a long triangular
p a rt o f the front o f the p alate ; vomer elongate, in middle
o f palate ; teeth 4g.
44 .
In h ab .
b. c.
Length,
entire, ...................... 15-9 in. 16-6 in. 15-6 in.
o f nose, ............. 8-9 10 0 9-3
oflow e rjaw ', 13-3 13-0
1 o f tem p le s ,............. 6-0 6-5 6-1
o f notch, ............. 3-3 3-3 3-6
o f m iddle of beak, 1-6 1-7 1-8
o f intermaxillaries, 0-01 •1 1-10
The C u b a n S t e n o . Steno fuscus.
T ab . 26. Fig. 1. Foetus and Tongue.
Bla ck above and below, in spirits. H e ad conical ;
gradually tapering into a ra th e r long nose, without any
separating groove, with five black whiskers on each side.
T e e th ?
In h ab . Cuba, W. S. MacLeay, Esq.
T h is species is only known by a foetal specimen in spirit,
not in a very good state. Presented to the British Museum
by W. S. MacLeay, Esq.
I t is very peculia r for the elongated tapering head, the
pec toral fins are ra th e r large, strongly falcate ; th e dorsal
ra the r beyond the middle o f the back.
T h e tongue is flat on the top, and nearly as broad as the
space between th e sides o f the jaw s ; it is entire on the
edges o f the sides, and slightly dilated in front, cremilated
on th e edge, and with a larger flat lobe in the middle of
the tip. See t. 26, f 1, a, b, c.
Mr. Branslon has sent me a specimen of Beluga calodon,
with the tongue in the head, in salt. T h e tongue is oblong,
with a simple, slightly raised edge. I t is figured in Plato
29, fig. 3, T h e tongue appears to have been drawn towards
th e gullet w'hen the head was separated. I t thus appears,
th a t each o f the different genera has a peculiar kind of
tongue ; this is worthy of further investigation.
Th e foetus o f Phocoena has two bristles on each side of
the nose; as the animal grows, these bristles fall out, and
each leaves a small p it on the side o f the nose, which
Klein [Hist. Piscium, i. 24) mistook for tho nostrils, as has
been well observed by Prof. Eschricht, 250.
The following species require further examination.
1. De lphinus pseudodelphis, Weigm. Schreb. i. 378,
skull.
Tee th 44 01-44 .
I n h a b . ? Mus. Leyden.
“ Skull in th e form of Z). Malayanus, b u t beak shorter,
and teeth shorter and thinner, very like those o f Z>. Delp
h is . P alate not gi-ooved. Symphysis of lowoer jaw rather
long.”
T h is may he the same as the Steno attenuatiis, b u t ouv
copy o f S chreber does n o t contain the plate refeired to.
2. D. velox, Dussum. Cuv. R. A. i. 288. F. Cuv. Ma n .
L ith . t. Cetac. 154.
Teeth 44 > grey, b p s and lowerjaw whitish, F. Cuv.
Teeth, 4 4 ; nose ra the r more elongated. Cuvier.
Inhab. Ceylon.
3. De lphinus Boryi, Desm. Mam. 515. Diet. Clas.
H. N . t. 1 4 1 , / 2.
In h ab . Madagascar. (Coast of New Plolland?)
4. ? D . Bertini, Desm. from Duham. Pech. t. 3 , / 10.
Cachalot 1 B la in v .
No teeth in lowoer jaw, b u t has a beak.
I n h a b . ?
5. D. Chineusis, Desm. from Osbeck, Voy.
Shining white.
In hab. Chinese seas.
The following species have been named and figured by
the sight caught of them when swimming !
D. cruciger, Quoy Gaim. Voy. TJran. t. 1 2 , / 3, 4.
D. albigeuus, Quoy, I. c. t. I I , / 2. D. rhinoceros, Quoy,
I. c. f. 1 1 , / 1, all from New Holland.
D. bivittatus. Lesson, perhaps the same as D. cruciger.
D. lunalus, Le.sson, Voy. Coq. i. I I , / 4.
D. leucocephalus. D. minimus and D. maculatus, Lesson,
Voy. Coq. i. 183.
The follow-ing species have been named only from figures
or very slight descriptions.
D. Scnedetta, D. Commersonii, D. nigev and D. Per-
netlii, Lacep.
D. Epiodon and D. mongitori, Raffinesque.
js is o f the low e r jaw very long.
Dorsal none. Teeth in' ')oth ja w s . Fluviatile.
d. SkuU w ith the m a x illa r y hones bent up in fr o n t o f
the bloioers, and fo i'm in g a vault. The teeth compressed.
The paddles fa n -sh a p ed , truncated a t the end. Pla lanis-
tina.
P l a t a n is t in a , Gray.
H e ad convex, back compressed, curved up a t th e end.
Teeth compressed. Dorsal n o n e ; back keeled in the
place o f the fin, and obliquely trunca te behind. P ectoral
fan-shaped, truncated.
The Sou Sou. P la tan ista Gangetica.
Delphinus Gangeticus. Lebeck, N. S ch r ifl. Berlin
N a iu r. iii. 280, t. 2. Home, Phil. Trans. 1818, 417, t. 20
Roxburgh, Asiatic Researches, vii. 170, t. Cuvier, Oss
Fos. V. t. 22, f 8—10.
Delphinorhynchus gangeticus, Lesson. Pla tan ista gan
geticus. Gray, Illu s t. In d ia n Zool. t. F. Cuv. Cetac
252.
Delphinus Shawensis, Bla in v . Jour. Phys. Desm.
Diet. H . N a t. ix. 153, f r o m spec, in Mus. Col. Surg.
D. rostratus, Shaiv, 514, from same specimen.
Blackish lead-colour, ra th e r paler beneath.
Inhab. In d ia, Ganges. S kull and specimen, British
Museum.
As the animal increases in age, th e ends o f the jaws
become more turned up, and the tee th enlarge and become
thicker at the base.
e. S k u ll w ith ihe m a x illa ry hones simple, e.vpanded over
the orbit. Teeth conical. Paddles ovate or oblong.
Iniana.
Synopsis o f the Genera.
1. I n ia . — T eeth rugose, the hinder ones with a rounder
tubercle on the inner side.
2. P o n t o po r ia . — T ee th cylindrical, conical, acute,
curved.
I nia , D'Orhigny. Delphinus, Desm. Delphinorhynchus,
F. Cuv.
He ad rounded, convex. Nose produced, nearly
cylindrical, hairy. Blowers oblique, nearly above the
pectoral fins. • Ear-hole distinct. T e e th numerous, ru gose,
grooved, p e n n a n e n t; the front, h o o k ed ; the hinder,
close a t the base, with a large rounded tubercle on the
inner side. Dorsal fin none. Back keeled, sub-triangular
behind. Body compressed behind. P ectoral fin large,
ih e skull depressed, with the nose twice as long as the
brain-cavity, compressed, with a groove along each side,
iem p o ra l cavity very large, edged above by a strong
crest, and the orbital hole very short, roundish. Muzzle
of the young hairy.
T h e I n ia . In ia Gcoftroyii.
De lphinus Geoffroyii, Desm. Mam. 512.
,D. Geoffroyensis, B la in v . Desm. N . D id . H. N . ix. 151.
“ D. à bec mince,” Cuvier, Desm.
Delphinorhynchus fronlatus, F. Cuv. Cetac. 121.
In ia Boliviensis, D'Orhigny, N . A n n . Mus. vii. t. 22, f .
3 ; cop. F. Cuv. Cetac. 166, t. 10*, t. 11.
P ale blue, reddish ben e ath ; fins and tail olive, some
reddish, others blacker ; teeth 44 -4 4 .
In h ab . U ppe r P eru or Boliiio, River Moxos. A n im a l
and skull Mus. Paris.
Length, entire, ..................... . 1 met. 4 (
„ o f m u z z le ,..................... 23
„ to eye, ..................... 84
„ to b low e r,..................... 40
„ lo ears, ..................... 43
„ to pectoral f in , ............ 52
„ to dorsal fin, ............. 1 met. 30
„ o f pectoral, ............. 42
B readth o f pectoral, ............. 18
„ o f c a u d a l,...................... 50
H e ig h t o f dorsal, ..................... 9
Circumfereuce of thickest part. 1 met. 4
The specimen in the Paris Museum, which Desmarest
described as De lphinus Geoffroyii, is evidently this species.
I t was taken from the Lisbon Museum, aud is covered
with paint. I t has no dorsal, and it shows th e tee th
sufficiently to ex h ib it their rugose state, and the large and
peculiar tubercle on th e inner side o f th e hinder ones,
which is characteristic o f this genus, and which appe ar to
have been overlooked by M. Desmarest, who describes
them as “ conique, obtuse, avec uue sort de collet infcrieure-
ment e t eutre Icur surface est rugueusc.”
T h e skull in the Paris Museum from M. D ’Orbigny, has a
prominent tubercle behind the blowholes ; eyebrows convex
and rugose on th e to p ; beak with a slight groove on
eacli side ab o v e ; lower jaw with scarcely any ridge on
the s id e s ; the symphysis long, occupying more than 4 the
length of the lower jaw ; tee th large, regular, hinder ones
with a rounded, regular tubercle on the innei- side.
Length of skull
„ beak
„ symphysis
„ teeth line
19-0
12-0
9-0
11-0
C a n a d ia n D o l p h in . In ia Canadensis.
Tab. 5. Animal.
Delphinus Canadensis, Desm. Mam . 516.
Dauphin blanc du Canada, Duham. Pesch, ii. x. t. 10,
/ 4.
Inhab. Canada.
Dr. R ichardson informs me he has seen many pure while
dolphins as high as Quebec, on the St. I.awrence, and he
h a s also seen a white dolphin, about 6 feet long, in H u d son’s
Bay ; th e latter was probably a Beluga.
M. De Blainville accidentally purchased in Paris the
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