* bones in front of the inner nostrils keeled. 
102 CETACEA. 
Skulls and skeleton in the Leyden Museum :—Length, entire, 
7 in. 2 lin.; of skull 16 lines. tea 
This species was first described by me from a skull in Brooke’s: — 
Museum, which is now at Leyden, and M. Schlegel has de- 
scribed and figured a skull from a skeleton sent from the Faroe 
Islands. It differs from the other species of the genus im the — 
nose of the skull being more slender and the teeth more nume- — 
rous. The teeth series, as in L. Electra and L. Asia, do not 
reach to the notch which separates the beak of the skull from the — 
brain-cavity. oe 
Professor Eschricht informs me that the animal is very like — 
D. leucopleurus, and Professor Nilsson has considered them as — 
the same. } 
The skull in Mr. Brooke’s collection was 15 inches long, the — 
head 7, the beak bemg 8 inches, and it was 41 inches wide at its — 
base ; the teeth small and slender; the beak long, attenuated, — 
acute, convex on the sides and flat in the centre above, and with 
a deep central groove. The teeth 28-38, small, slender. The — 
7. LAGENORHYNCHUS CLANCULUS. a 
Skull wide and rather high behind. Beak flat; outline wide © 
at the base, rapidly tapering and acute in front, but rather con- — 
vex on the sides; sides slightly rounded; the hinder edge near — 
the notch only slightly tuned up and rounded; triangle to near 
the middle of the beak. Lower jaw high behind. ‘Teeth 33, 
small, cylindrical, curved, rather acute at the tip; the lower front — 
one very small. Intermaxillaries broad, hard. 
Lagenorhynchus clanculus, Gray, Proc. Zool. Soc. 1849, 1; Zool. q 
Erebus & Terror, t. 35, med. Skull. 
a. Skull. Pacifie Ocean. From Dr. Dickie’s Collection. 
Henoth, CntirerF wi 9, VPLS. nls 143 inches. ~ 
ah eM clk eee ORE ae 74) toy 
So witehalbns b. xataeiog ake ek Fai ae 
sy. Heethslimes souk ieee ee 63 
je bY LOWER RAR a oS oe eae lit 5 
» symphysis, lowerjaw.... 13 4, - 
Widtlr'ap note oe eT ee 4s 
bg erbitc #5. 4c ee eh ee (ena ; 
ee middle of beak ........ 4 ee 
ss intermaxillary in middle. 13 ,, 
a) condyles above ........ 22 
Very peculiar for the elongation and reflexion of the beak ael 
fore the notch, and the regular beveling of the sides of the beak. 
