116 GENEEA AND SPECIES OF BIBBS. 



2. coryi, Sharpe, in Seebohm's Moiiogr. Turdidse, Cayman Brae Isl. 

 ii. p. 212 (1902). 



3. plumbea (Linn.). Bahama W. 



bryanti, Seebohm, Cat. B. v. p. 230. 



4. schistacea, Baird, Review Ainer. B. p. 37 E. Cuba. 

 (1854). 



5. ravida, Cory, Auk, iii. p. 499 (1886). Grand Cayman Isl. 



6. ardesiaca ( fieill.). (v. p. 282.) Greater Antilles. 



7. albiventris, Sclater, P. Z. S. 1889, p. 32fi. Dominica. 



[yerrillorum, Allen, Auk, viii. p. 217, 1891.] 



IX. CICHLHERMINIA, Bp. 



(Sharpe, Cat. B. Brit. Mus. vi. p. 326, 1SS1.) 

 [Of. Stejneger, Proc. U.S. Nat. Mus. v. p. 476, 1883 ; 

 Cory, Auk, viii. pp. 13, 44, 1891. J 



1. herminieri (Lafr.). (p. 327.) Lesser Antilles 



(Guadeloupe). 



present volume appears to me to be natural, but it remains to be seen whether an 

 exact examination of characters will justify my arrangement. 



The distinctive characters between the genera Tardus and Merula are very slight, 

 and the difference in colour of the sexes in the latter genus is of no account. The 

 proportion of the primary-quills emphasized by Dr. Stejneger is also an unstable 

 character ; but the larger size of the bastard primary in the Merula, which is almost 

 Tinieliine in form in some species, is perhaps the best feature to rely on for the 

 separation of the Blackbirds and Thrushes. The wing is, as a rule, more pointed in 

 the latter ; but even then the proportion of the quills varies in allied species, and in 

 two closely connected species a migratory bird will show a more pointed wing than 

 its resident and more sedentary ally. 



