128 FIELD MUSEUM OF NATURAL HISTORY ZOOLOGY, VOL. XIII. 



Genus MICROSIPHONORHIS 8 Chapman 



Micro siphonorhis Chapman, Bull. Am. Mus. N. H., XXXVII, 1917, p. 329 

 (Type Micro siphornorhis brewsteri). 



Microsiphonorhis brewsteri Chapman* BREWSTER'S PARAQUE. 



Microsiphonorhis brewsteri CHAPMAN, Bull. Am. Mus. N. H., XXXVII, 1917, 

 p. 329 (Tubano, Prov. Azua, Santo Domingo, W. I.). 



Range: San Domingo, Island of Haiti, West Indies. 



Genus SIPHONORHIS Sclater. 



Siphonorhis Sclater, Proc. Zool. Soc. Lond., 1861, p. 77 (Type Caprimulgus 

 americanus Linn.). 



Siphonorhis americana (Linn.). JAMAICA GOATSUCKER. 



Caprimulgus americanus LINNAEUS, Syst. Nat., ed. 10, 1758, p. 193 ("America 



calidiore ' ' = Jamaica). 

 Siphonorhis americanus CORY, Auk, 1886, p. 344; Id., Bds. West Indies 1889, 



p. 139; HARTERT, Cat. Bds. Brit. Mus., XVI, 1892, p. 592. 

 Siphonorhis americana RIDGWAY, Bull. U. S. Nat. Mus., No. 50, VI, 1914, p. 495. 



Range: Island of Jamaica, Greater Antilles. 



Genus PHALAENOPTILUS Ridgway. 



Phalaenoptilus Ridgway, Proc. U. S. Nat. Mus., Ill, 1880, p. 5 (Type Caprimul- 

 gus nuttallii Audubon). 



*Phalaenoptilus nuttallii nuttallii (Audubon). POORWILL. 



Caprimulgus nuttallii AUDUBON, Orn. Biog., V, 1839, p. 335 (nom. nudum); Id., 

 Bds. Am., oct. ed., VII, 1844, p. 350, pi. 495 (East bank Missouri River, 

 between Fort Union and Fort Pierre). 



Phalaenoptilus nuttallii nuttallii RIDGWAY, Bull. U. S. Nat. Mus., No. 50, VI, 

 1914, p. 548. 



Phalaenoptilus nuttallii nitidus BREWSTER, Auk, 1887, p. 147. 



a "Char. gen. Most nearly related to Siphonorhis; Scl. (monotypic; type 5. 

 americana) but nasal tubes shorter, 1.5 mm. in height (in skin) as compared with 3 

 mm. in Siphonorhis; bill disproportionally smaller, its outline from above more regu- 

 larly triangular, less shield-shaped, the upper mandible not convex in outline, the 

 ridge on its cutting edge less developed; rictal bristles apparently actually stronger; 

 tail squarer, less graduate; tarsus and toes disproportionately longer." (Chap- 

 man, 1. c.). 



b Microsiphonorhis brewsteri CHAPMAN: " In general coloration resembling Sipho- 

 norhis americana, but paler throughout, throat and pectoral band white sharply 

 denned from the black sub terminal area, which is much broader; abdominal region 

 buffy white instead of ochraceous buff, more narrowly and less regularly barred; 

 tertials narrwoly tipped with white." (Chapman, I.e.). Size smaller; female: 

 wing, 119.5; tail, 94.4; bill, 8.5 mm. Detailed description given. The type, an 

 adult female is the only known specimen. 



