430 Recently published Ornithological Works. 



are two Passerine genera peculiar to it — Cuphopterus and 

 Parinia. 



In a second memoir the ornis of the larger island of 

 San Thome is treated in a similar manner. An excellent 

 summary of the previous authorities on the subject is given, 

 together with a complete bibliography. Sig. Fea had a bad 

 time in this island and secured only 103 specimens of birds, 

 which are referable to 21 species. Two of these (Zosterops 

 fea: and Corythornis thomensis) are new to science. The list 

 of the known birds of St. Thomas, which follows, contains 

 63 species, together with synonyms and remarks. Twenty- 

 two of them are restricted to the island. An appendix gives 

 the names of 17 doubtful species. 



105. Shufeldt on the Classification of certain Groups of 

 Birds. 



[On the Classification of certain Groups of Birds. (Supersuborders : 

 Archornithiformes, Dronueognathae, Odontoholcae.) By R. W. Shufeldt. 

 American Naturalist, xxxvii. pp. 33-04 (1903).] 



This is one of a series of essays prepared by the author 

 for a general work on the classification of the Class Aves, 

 but subsequently broken up and issued separately on account 

 of difficulties connected with its publication. The present 

 memoir contains Dr. Shufeldt's views on Archceopteryx, the 

 Ostriches and allied birds, and the Odontor nit lies. Eight 

 other memoirs are stated to be ready for appearance in due 

 course. 



106. Swenander on the Gullet and Stomach of Birds. 



[Studien iiber den Bau des Schlundes und des Magens der Vogel. In- 

 augural Dissertation von Gust. Swenander. Tlpsala, 1905J.] 



This elaborate paper contains a valuable addition to our 

 knowledge of the structure of the gullet and stomach of 

 Birds, and the author has tried to refer the varieties of the 

 finer anatomical structure to the nature of the food as their 

 ultimate cause. About 130 birds, representing most of the 

 principal groups, have been examined micro-copically, while 

 of 47, mostly common European birds, more microscopical 



