168 THE CAROTID ARTERIES OF BIRDS. 
Cheetura vauai. Chetura caudacuta. 
—— spinicauda. Dendrochelidon coronata. 
But both carotids were found to be present in a specimen of 
Oypseloides fumigatus. 
CAPRIMULGIDA. 
Both carotids are present in these birds. 
Species examined. 
Caprimulqus europeus. Chordeiles texensis. 
STEATORNITHIDZ. 
Both carotids are present in 
Steatornis caripensis. 
PICI. 
Picipz. 
The left carotid only is present in the Woodpeckers. 
Species examined. . 
Picus major. Chloronerpes yucatanensis. 
minor. _ Melanerpes formicivorus. 
Picoides tridactylus. Mulleripicus fulwus. 
Tiga jawensis. Gecinus viridis. 
Leuconerpes candidus. Yune torquilla. 
COCCYGES. 
CorRAcIID2z. 
Both carotids are found in these birds. 
Species examined. 
Ooracias garrula. Eurystomus, sp. 
P 4. 
peat TROGONIDA. 
The left carotid only is present in these birds. 
Species ewamined. 
Trogon mexicanus. ’ Trogon puella. 
MEeRopIDz. 
The left carotid only is present in.these birds. 
Species examined. 
Merops apiaster. Merops ornatus. 
Momorip2. 
Both carotids are present in these birds. 
Species examined. 
Momotus lesson. Humomota superciliaris. 
