XVll 
In 1860 Cabanis and Heine (Mns. Hein. pt. ii. p. 119) proposed to include Eurystorms afer^ 
E. glaucurus, and E. gularis in a new genus, Cornopio, the type being the hrst-named species; and the 
same year Gray (P. Z. S. 1860, p. 346) described Eurystomus azureus, a very distinct and good 
species inhabiting the Moluccas. 
In 1865, in a very exhaustive review of Leptosomus discolor^ Dr. Sclater (P. Z. S. 1865, 
pp. 682-689) considers the position of Leptosomus^ and after treating of the external characters of 
the head, the pterylology, &c., expresses the opinion that Leptosomus should be made the type 
of a separate family near the Coraciidae, with which it is perhaps connected by Brachypteracias. 
Figures are given of the head, the skull, feathers from the back and breast, the upper surface with 
the feathers removed, the sternum, and the tongue and hyoid bones. 
The following year (1866) Diggles figured (Orn. Austral, part v.) Eurystomus australis, and 
Gould (B. of Great Brit, part x.) Coracias garrulus. 
In 1869 Gould (B. of Asia, part xxi.) figured Coracias indicus, C. affinis, and C. temmincM, and 
Dr. Sclater (P. Z. S. 1869, p. 121) described Eurystomus crassirostris. 
Two years later (‘Ibis,’ 1871, pp. 184-203, 270-289), Dr. Sharpe gave a most valuable mono¬ 
graphic review of the Coraciidae of the Ethiopian Eegion, in which he proposed a new genus Geohiastes, 
to contain a single species, Brachypteracias squamiger, which, however, I have not deemed it 
advisable to recognize, as I cannot find any valid character by which it can be separated from 
Brachypteracias. B. sguamiger, compared with B. leptosomus, has the tarsus rather longer, therein 
resembling Atelornis, and the tail is somewhat shorter, but I can detect no ditference either in the 
wing or bill between the two species, and have therefore placed both in the genus Brachypteracias. 
In the same year Dr. Sharpe and myself figured Coracias garrulus in the ‘Birds of Europe’ (pi. 293), 
and Mr. D. G. Elliot described (‘ Ibis,’ 1871, pp. 203-204), under the name of Eurystomus waigiouensis, 
a Roller which has since been shown to be specifically inseparable from E. crassirostris. 
In 1873 the Roller from the Solomon Islands was figured in Brenchley’s ‘Cruise of the Curagoa,’ 
pi. iii., under the name of Eurystomus crassirostris. This species was described by Dr. Sharpe in 
1890 under the name of Eurystomus solomonensis. 
Two years later Dr. Sharpe described and figured a very distinct species of Ground-Roller, 
Atelornis crossleyi, from Madagascar (P. Z. S. 1875, p. 74, pi. xiv.). 
Between 1875 and 1880 I find nothing of any importance on record respecting the Rollers, but 
in the latter year Garrod published (P. Z. S. 1880, pp. 465-475) a most important paper on the 
anatomy of Leptosomus discolor, figuring the foot, the wing-muscles, the plantar tendons, and the 
syrinx, and giving a table of affinities between Leptosomus, Cuculus, and Coracias, showing that in every 
respect Leptosomus is very closely allied to Coracias and should in any case be placed next to the 
Coraciidee or else relegated to the position of a subfamily of the Coraciidee. In the same year 
Mr. Trimen described (P. Z. S. 1880, pp. 30-33) Coracias spatulatus from South Africa, and Professor 
G 
