rHociii.E. 5 



Latreille (F;im. Reg. Anim.), in 1S25, proposed to form the Seals 

 into an order, Anijohihia, containing two families: — 1. Cynomorplui , 

 for Phoca and Otaria ■ 2. Brocha, for Trichechus. 



Wagler (Natiirl. Syst. Amphibicn), in 1830, places the Seals in the 

 order Ursi, and divides them into three genera: — 1. Phoca (mona- 

 chus) ; 2. Rhinophoca (proboscideus) ; 3. Trichecus (rosmarus). 



Professor Nilsson, in 1837, in a monograph of the species of Seals, 

 proposed to divide them into seven genera, distributed in two sec- 

 tions, thus : — 



Sect. I. — 1. SfenorJii/nchus (leptonyx) ; 2. Pdagius (monachus) ; 

 3. Phoca (vitulina). 



Sect. II. — 4. Hallchcenis (grypus) ; 5. Trichecus (rosmarus) ; 

 6. Ci/stophora (proboscidea and cristata) ; 7. Otaiia (jubata' and 

 ursina). See Vetcnsk. Akad. Handl. 1837, 235 ; Skand. Fauna, no. 20, 

 1840. This essay is translated into German by Dr. Peters in Wieg- 

 mann's Arch. vii. 301. 



In Loiidon's 'Magazine of NaturalHistory' for 1837 (i. 5S3) and 

 in the ' Zoologj- of the Erebus and Terror ' is proposed the arrange- 

 ment which is followed in this Catalogue. 



5]^. Turner, in 1848, proposed the following arrangement of the 

 family Phocida' from the study of skulls : — 



I. AniocephnVnia : 1. Otaria; 2. Arctocephalus. II. Trichecina : 

 3. Trichecus. III. Phocina : 4. Morunga ; 5. Cystophora ; 6. Hali- 

 choerus ; 7. OmmatojAora ; 8. Lobodon ; 9. Leptonyx ; 10. Steno- 

 rhpichus ; 11. Phoca.— P/-of. Zool Sac. 1848, 88 ; Ann. 3f Mnrj.Nat. 

 Hist. 1848, iii. 422. 



Synopsis of the Tribes and Gexera. 



A. Grinders hco-rooted; cars none; toes simple, of fore feet short, of 



hind feet uneqiml, the outer on each side longest, the middle shortest; 



the jmlms a?id soles hairy. 

 a- Cuitinf/-teeth A; hind feet nearly clmvlcss ; muffle hnry on the edije 



and between the nostrils ; fore feet trianyular ; wrist very short. 



Stenorhj'nchiua. 

 * First, second, and third front npper and the first frotit hirer yrinders 



sinffle-rooted, the rest two-rooted ; lotcerjaw moderate. 



1. LoBODON. Skidl and muzzle elongate ; grinders unequally lobed. 



** The front grinders of each jaio sinyle-rooted, the rest two-rooted. 

 t Lower jaw weak, with obtuse angle ; orbits very large. 



2. Leptoxyx. Skull broad, depressed behind ; muzzle short, broad ; 



giinders subconipressed, with a small subcentral conical tubercle 

 and a veiy small posterior one; lower jaw narrow behind, without 

 any hinder angle ; fore feet clawed. 



3. Ommatopiioca. Skull broad, depressed behind ; muzzle very short, 



broad ; orbits very large ; grinders small, compressed, with a central 

 incurved lobe, and a small lobe on each side of it ; fore feet very 

 slightly clawed. 



