- Zoological Society. 127 
> ‘ B. F 
19. T. Stutchburyi, Blainyille. 
T. campanulata, Deshayes in Brit. Mus. 
20. J. minima, Blainville. 
T. bipalmata and bipalmulata, Delle Chiaje. 
T. palmulata, Philippi. 
T. Philippii, Fischer. 
T. serratus, Deshayes, MS. ; 
This species is common in the Mediterranean ; but it has not 
yet been noticed in this country. 
21. T. palmulata, Lamarck. 
T. bipalmulata, ej. 
Taret de Pondichéri, Adanson. 
Nothing is known of the valves or tube. The pallets, from 
which Lamarck described the species, are still preserved in the 
Collections of Natural History at the Jardin des Plantes; and I 
observed another pair in the cabinet of M. Petit de la Saussaye 
at Paris. They bear no resemblance to the pallets of 7. palmu- 
lata of Philippi, except in being compound or jointed; but they 
are more nearly allied to the pallets of 7. bipennata, although 
evidently distinct. . 
PROCEEDINGS OF LEARNED SOCIETIES. 
ZOOLOGICAL SOCIETY. 
February 14, 1860.—John Gould, Esq., F.R.S., V.P., in the Chair. 
On THE OccURRENCE OF AMERICAN Birps IN EwrRopE. 
By Herr H. GAtrxe or HELIGOLAND. 
_ The route by which American birds proceed to Europe is, as 
Yarrell justly terms it, “an interesting problem, of difficult solu- 
tion.” For years this solution has occtpied my attention; and 
although I have myself always been convinced that such of these 
entirely American birds as occasionally visit Europe do reach us by 
a passage across the Atlantic, this remains a mere opinion, i 
no weight if unsupported by facts, or by at least sufficient argument 
to make good the question at issue. 
The mere comparative review of the occasional visitors among the 
birds of Great Britain and of Germany will lead to the conclusion 
that the route of American birds to Europe must needs be a voy 
across the Atlantic; for almost all the additions to the birds of 
Europe, of species purely American, have been obtained in Great 
Britain—which could not have been the case if they had proceeded 
in any other than an eastern direction—whilst the additions by Ger- 
many, furnished to the European Ornis, consist almost entirely of 
birds belonging to Asia. 
