o 
‘ 
CETACEA. ' 5 
1. Batznipz. Nostrils 2, separate, longitudinal. Palate with 
baleen. Jaws toothless. Head very large. 
i 2. PHyYSETERIDZ. Nostrils 2, separate, longitudinal. Palate 
smooth. Lower jaw toothed. Head very large. 
_ 3. DELPHINIDa. Nosirils united, lunate, transverse. Palate 
smooth. Jaws toothed; rarely deciduous. Head moderate. 
Suborder II. Skin rather hairy ; whiskers rigid. Limbs clawed. 
Teats 2, pectoral. WNostrils 2, apical. Herbivorous. S1- 
RENIA. 
4. ManatTip#. Grinders none, or flat-crowned. Front of jaws 
covered with horn. 
Suborder I. CETE. 
Skin smooth, without hair. Limbs clawless; fore fin-like; 
hinder caudal, horizontal, forked. Teats 2, mguinal. Nostrils 
enlarged and close together, called blowers. Carnivorous. Teeth 
conical, all similar, often not deveioped, and absorbed. Palate 
often furnished with transverse, pendent, horny plates of baleen 
or whalebone; fringed on the edge. 
_ Syn. Cete, Gray, Ann. Phil. 1825; Selys Longchamps, 1842. 
Cetacea, Dum. Z. A. 1806. 
Cetacez carnivore, Gray, Med. Rep. xv. 309, 1821. 
-(Souffleurs) Hydraula, Latr. Fam. Nat. 1825, 65. 
_ Natantia Cete, Iiliger, Prod. 141, 1811. 
- Cete 8, Fischer, Syn. 1828. 
M. pinnata, Storr. Prod. Mam. 1780. 
Cetaces, Cuv. Tab. Elem. 1798. 
Fam. 1. BALZNIDE. WHALEBONE WHALES. 
Head very large, one-third the size of the body. Jaws of 
young with rudimentary teeth, which are never developed; of 
adult toothless. Palate with crowded, transverse, triangular, 
_ pendent, horny plates (whalebone or baleen), with a fibrous mner 
edge, forming “‘a screening apparatus.’ Head large, shelving 
in front. Blowers far back, longitudinal, separate, each covered 
with a valve. Spout double. Gullet small. Eyes small, near 
angle of the mouth. 
Balena and Physeter, Linn. ; Cuv. Tab. Elem. 1798. 
Balenade and Physeteride, Gray, Lond. Med. Rep. xv. 310. 
Les Cachalots and Les Baleines, F. Cuv. 1829. 
_ Cete, Illiger, Prod. 141, 1811. 
Cetacea edentula and C. dentata, Brisson, R. A. 218, 225. 
_ Edentes abormaux, Blainv. 1816. 
