52 BARBOUR AND BROOKS — WEST INDIAN BIRDS Pa 
Petrochelidon fulva cavicola subsp. nov. 
Type, no. 67,675, coll. Museum of Comparative Zodlogy, adult male, 
San Antonio de los Baiios, Province of Havana, Cuba, March 22, 1915, 
collected by T. Barbour, W.S. Brooks and V. J. Rodriguez. 
Similar to Petrochelidon fulva fulva from Santo Domingo, but a little larger 
and differently colored. The Cuban birds show a much greater extension 
of the fulvous area below and a consequent restriction of the white area on 
the belly. In the Cuban birds the throat and chest are usually more richly 
colored than in the individuals of true fulva. They also have the rufescent 
or fulvous area changing gradually into the white or whitish of the mid- 
ventral region, whereas in the Haitian birds the white is clearer and purer 
and the boundary of the fulvous zone is quite sharply defined. 
The Peters collection made in northern Santo Domingo makes it 
possible to compare five examples of true fulva with our series of 
over thirty Cuban birds. In the W. E. D. Scott collection, now 
in the Museum of Comparative Zodlogy, there are fifty-six examples 
of the Jamaican race, poeciloma, which is different from both the 
Cuban and Haitian forms, and is much more similar to the Haitian, 
than to the Cuban bird. This fact is the rule rather than the 
exception with Jamaican types in many different groups. 
