Latreille (Fam. Eeg. Auim.), in 1825, proposed to foiTQ the Seals 

 into an order, Amjyluhin, containing two families: — 1. Cynomorpha, 

 for Phoca and Otaria ; 2. Brocket, for Trichechus. 



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

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

 chus) ; 2. lihinophoca (prohoscideus) ; 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. Stenorlujnclms (leptonyx) ; 2. PeJagius (monachus) ; 

 3. PJioca (vitulina). 



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

 6. Ci/sfophorci (proboscidea and cristata) ; 7. Otaria (jubata and 

 ursina). See Vetensk. Akad. Handl. 1837, 235 ; Skand. Faima, no. 20, 

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

 mann's Arch. vii. 301. 



In Loudon's ' Magazine of Natural Histoiy' for 1837 (i. 583) and 

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

 ment which is followed in this Catalogue. 



Mr. Turner, in 1848, proposed the foUowing arrangement of the 

 family Phocichv from the stxidy of skulls : — 



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

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

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

 rhynchus ; 11. Phoca.— Proc. ZooL Soc. 1848, 88 ; Ami. ^ Mag. Nat. 

 Hist. 1848, iii. 422. 



Synopsis of the Tkibes and Gteneea. 



A. Grinders two-rooted; ears none; toes simjile, of fore feet short, of 



liind feet tineqiud, the outer on each side lonijest, the middle shortest; 



the 2'>ahns and soles hairy. 

 a. Cuttiny-teeth i; hind feet nearly clawless; muffle hairy on the edye 



and betiveen the nostrils ; fore feet trianyidar ; tcrist very short. 



Stenorliyuchina. 

 * First, second, and third front dipper and the first front loicer yrinders 



sinyle-rooted, the rest two-rooted ; hirer jaio moderate. 



1. Lobodon. Skull and muzzle elongate ; grinders unequally lobed. 



** The front yrinders of each jaw sinyle-rooted, the rest two-rooted. 

 t Lower jaw weak, tvith obtuse anyle ; orbits very larye. 



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



gTinders subcompressed, with a small subcentral conical tubercle 

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

 any hinder angle ; fore feet clawed. 



3. Ommatophoca. 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. 



