94 



Page 

 Yarrell,, William, Secretary to the Society (coniinued). 



Characters of a New Species of Herring (^Clupea, 



L.) 1830-1, 34 



On the Occurrence of several North- American Birds 

 in England 1830-1, 35 



On the Anatomy of the Lesser American Flying 

 Sąuirrel {Pteromys volucella, Cuv.) 1830-1, 38 



On the Auatomy, &c., of the Ctenodactylus mas- 

 sonii, Gray (Mm« gundi, Rothm.) 1830-1, 48 



On the Sterno-tracheal Museles in the Razor- 

 billed Curassov} {Ourax mitis, Cuv.) 1830-1, 59 



On the Distinctive Characters of the Tetrao medius, 

 Temm. (Tetrao hybridus, Lach.) 1830-1, 73 



On Two Species oi Eyitozoa found in the Eel . . 1830-1, 132 



On the Generation of Eels and Lampreys 1830-1, 132 



On the Brovun-headed Guli (Larus capistratus, 

 Temm.) 1830-1, 151 



On the Anatomy of the Conger Eel (Conger vul- 

 garia, Cuv.), and on the Differences betneen the 

 Conger and Freshvoater Eeh 1830-1, 159 



On a Hybrid bred by the Society between a Muscovy 

 Drake (Arias moschata^ and a Common Duck (Anas 

 boschas) 1832, 100 



On two Species of Mammalia new to Britain ; one 

 of them also new to Science 1832, 109 



On the TrachecE of the Penelope guan, Temm., and 

 the Anas magellanica, Auct 1833, 3 



m 



On the Laws that regulate the Changes of Plumagei f 



Birds J 't 



1 1833, j 



Description, with additional Particulars, of the ir 24 



Apterys au^tralis, Shaw J 'L 80 



On the Woolly aud Hairy Penguins (Aptenodytes, 



Forst.) of Dr. Latham 1833, 33 



