160 HALICORIDZ.—HALICORE. 
INIA, 
Teeth :-—3* = 135. 
34-34 
The Inta. Inia geoffroyii. 
Gray, Cat. Mamm. Brit. Mus. pt. i. Cetacea, p. 185. pl. 7. fig. 3 (skull). 
Inia boliviensis, D’ Orbigny, N. Ann. Mus. vii. tab. 22; Voy. Amér. 
Mérid. Mamm. tab. 22 (dull). —F Cuv., Hist. Nat. Cétacés, pl. 2. 
figs. 1, 2 (skull), 1886. 
a, b, Skulls. From Mr. Bates’s Collection. 
PLATANISTA. 
Teeth ;—25 = 107. 
The Susur. Platanista gangetica. 
Gray, Wust. Ind. Zool. ; Cat. Mamm. Brit. Mus. pt. i. Cetacea, pl. 7. 
fig. 2 (skull).— Owen, Odont. pl. 87. figs. a, b (teeth). F. Cuw., 
Hist. Nat. Cétacés, p. 225. pl. 18. figs. 1-3 (skull), 1836. 
Delphinus gangeticus, Cuv., Oss. Foss. y. tab. 22. figs. 8, 10 (skull). 
a. Skull: young (end of nose nearly straight). India (Ganges). 
b, Skull: adult (end of nose recurved). India. Presented by 
Gibson Rowe, Esq. 
Fam. 4. HALICORIDA. 
HALICORE. 
‘ 22. : 0-0 5-5 
Teeth :—Incisors ssorau3 Conmines —; Molars = ;=30 or 32. 
The Ducone. Halicore dugong. 
Daubenton, Buffon, Hist. Nat. xiii. (skull).—Home, Phil. Trans. 1821, 
tab. 20.—Pander u. d Alton, Vergl. Osteol. tab. 5 (skeleton), 
figs. a—h (skull and details of skeleton).— Cuw., Oss. Foss. v. p. 259. 
tab. 19 & 20 (skeleton and skull),—Spex, Cephalog. xxiii. (skull).— 
Blainv., Ost. Atl. G.Manatus, pl.2 (skeleton), pl. 4 (skull).—Schreb., 
Saugth. vii. pl. 380. figs. 5, 6 (skull), pl. 383 (skeleton). 
Halicore indicus, Owen, Odont. pls. 92-95 (dentition); Odont., Art. 
in Encycl. Brit. (new edit.) p. 446. figs. 6, 7 (section of teeth and 
jaws).—F. Cuv., Hist. Nat. Cétacés, p. 29. pls. 4-7 (skeleton and 
skull), 1836, 
Cervical vertebrae... 0.0.0... c eee ees 7 
Morsal (2 gs. 2 ater wt ate eka Rar gas habeas 18 
Lumbar, Sacral, and Caudal ............ 31 
a. Skull: adult. India. Presented by Walter Elliott, Esq. 
b. Skeleton. India. | a : : 
c. Skeleton (imperfect). } From the Zoological Society’s Collection. 
