Recently published Orniihological Works. 573 



which next follows, is likewise most appropriately entrusted 

 to the author of the well-known Monograph, who now 

 recognizes 183 species of Kingfishers. That he has done 

 well in finally uniting Alcedo bengalens'is to A. ispida few 

 ornithologists, who have studied the question, will be 

 inclined to doubt. Whether he is equally to the front in 

 keeping Ceryle varia distinct from Ceryle rudis is not certain ; 

 but, as in the case of many other subspecies, this is *^a 

 matter of opinion/" The Alcedinidse are followed by the 

 Momotidse, Todidse, and Coliidae, of which the accounts are 

 likewise prepared by Dr. Sliarpe. Among the Momotidse we 

 observe that he has given, three new names hypothetically, 

 — Momoti pai'ensis (p. 320), venezuelfE (p. 321), and argenti- 

 cinctus (p. 323). Without expressing an opinion on the 

 advisability of creating hypothetical species, we certainly 

 think that these names, being in print, ought to have been 

 inserted in the Systematic and Alphabetical Indexes. 



Mr. Grant completes the volume wdth an account of the 

 suborders Bucerotes and Trogones, in which, we are pleased 

 to see, he does not find it necessary to make any serious 

 deviation from previous arrangements of these groups, 

 further than the introduction of two new genera of 

 Bucerotidse. The Bucerotidse, it may be remarked, are 

 divisible into two very distinct subfamilies typified by 

 Bucorax and Buceros. This is not very well shown in the 

 table (p. 349), where Rlihwplax,v,'\\\c\\, whatever the structure 

 of the casque may be, certainly belongs to the Bucerotinse, 

 is first separated off by itself. Moreover, the subfamily 

 Bucerotinse is omitted altogether in the Systematic Index. 



Besides the three hypothetical species above mentioned 

 the following new specific and subspecific terms are first 

 published in this volume : — Ceryle americana septentrmialis, 

 C. aquatorialis, Alcedo ispida floresiana, Ceyx euerythra, 

 Halcyon torquatus forbesi, H. admiralitatis, H. tutuila, H. 

 tannensis, H. chloris armstrongi, H. c. vidali, H. suvensis, 

 H. hiunii, H. h. meyen, H. h. davisoni, Todirhamphus youngi, 

 Momotus bartletti, Colius affinis, Trogon bolivianus, Harpactes 

 vidua, and H. dulitensis. 



SER. VI. VOL. IV. 2 Q 



