(86) 

 288. Chlorostilbon caribaeus nanus subsii. nov. 



^Chlorostilbon caribaeus, Lawr., Ann. Lijc. X. H. Xiw Yorl:, X. (1871) p. 13 (typ. ex Curasao). 



C/d- C/d. caribaeus dicto simillimus diifert rostro pro iisu brt-viore, cauda paiilo 

 minus fuirata et pectore magis coemlescenti tincto. 



cJ cT : Loug. al. 45^—44, caiid. 20— 23^, culm. 15, 14|, 1:5|, 13i, 13^, caud. 

 fnrca 5 J — 4 mm. ? : Long. al. 44, caud. 24, culm. 14^, caud. furca 2 J mm. 



I/ab. In regione media flumiuis Orinoco, Oaicara, Altagracia, etc. 



Typus : In Mus. Rothschild, Triug (no. 10157), Caicara, 19. ii. '98. 



Altagracia : SS ad. 4, 11, 22, 23, 24. xi., 2, 9, 11, 13, 20, 27, 29. .xii. '97, 7, 8, 

 11, i. '98; ¥ ? 10. xi., 22 xii. '97; 6 jnv. 21. i. '98. 



Puerto Samoro : S 24. xi. '98. 



Perico : ? ad. 21. xi. '98. 



Caicara : ? ? ad. 8. i., 14, 19, 25. ii., 6 juv. IS. ii., ? 10. ii. '98. 



Quiribana de Caicara : ? 10. iv. '98. 



" Iris dusky ; feet black ; bill black." 



(Nos. 8408, 8582, 8062, 8774, 8811, 8836, 8989, 9113, 9165, 9186, 9307, 9359, 

 0412, 9443, 9578, 9.593, 9630, 9705, 10053, lollO, 10148, 10157, 10269, 10755, 

 10945, 11309, 11332 Cherrie coll.) 



(-'iudad Bolivar : J' cJ ad. 30. vii. (bis), 2. xii. '98 (Klages). 



The birds collected by Mr. Cherrie on the middle Orinoco differ from the typical 

 form from the island of Curarao by having as a rule a much shorter bill, also 

 a slightly less deeply forked tail, and by the breast being tinged more or less with 

 bluish green, which is generally not the case in Curarao birds. The latter character 

 is also shown in specimens from the coast region of Venezuela, which never- 

 theless agree with the Cura(;-ao specimens in the length of the bill and in the 

 deep furcation of the tail. 



The birds from the north coast of Venezuela have been lately separated by 

 M. Simon and Comte Dalmas as Cldorustilbon caribbeus lessoni \^Ornis XI. (19ol) 

 p. 2\2, partini]. Hartert, however, having compared a large series from Uumana, 

 two mail's shot on Trinidad by Dr. Kendall, and a fair series from Curasao, Aruba 

 and Bonaire, finds that none of the differences given by the authors holds good, 

 unless it be the more bluish tinge on the breast. This latter is, nevertheless, 

 sometimes visible in the Curacao specimens, and therefore Hartert doubts the 

 possibility of separating the continental coast form called lessoni even as a sub- 

 species, while nanus is without difficulty separable if a small series is examined. 



289. Thalurania tschudii Gould. 



Thalumuia Uchudii Gould, l'.Z.S. 18C0 p. :512. ("The neighbourhood of the River Ucayali, and 

 the countries of Ecuador and Pern.") 



Nericagua: c? ad. 13. iv., <S i jun. 30, 31. iii., 3 (bis), 5, 0, 22. iv., ? ? 7. ii., 

 31.iii., 3, 4 (bis), 12. iv. '99. 



Mnndnapo : ? ? 24, 25. ii. '99. 



(Nos. 11849, 11989, 12097, 12104, 12315, 12349, 12350, 12390, 12391, 12392, 

 12393, 12416, 12416, 12417, 12437, 12446, 12503, 12515, 12533 Cherrie coll.) 



These birds agree very well with Thai, tscbudii from N.E. Peru which hitherto 

 iiud been considered peculiar to that region. 



