12 ARKIV FÖR ZOOLOGI. BAND 12. N:0 8. 



1 c?, Nic, G. Granada; 1 $ (U. Z. M.), Nic, Ch. San Carlos, 

 Dec. 5. 



Common at Laguna S:ta Rosa, Ometepe Island. 



57. Parra nigra Gm. — 1 $, young, Pa., Pacora, March 3. 



58. Rynchops melanura intermedia subsp. nov. ~ 1 J", 

 Nic, Harbour Head, Ch. San Juan del Norte, Nov. 22 (type). 



Syn. Bhynchops melanura Saunders. Cat. Birds Brit, Mus. XXV 

 p. 156. part. (Coziimel I., off Yucatan.) 

 Bhynchops nigra cinerascena? Beelepsch and Hartert. Nov. 

 Zool. IX. 1902, p. 132 (Venezuela, Caicara). 



R. melanura similis, sed rectricibus Jatius albido limbatis, 

 secundariis intus et ad apioem late albis. Al. 405,6; caud, 

 126; culm. 80; gonys 110; tarsus 37,6; digit. med. cum ung. 

 32,5 mm. 



By comparing the present specimen with the American 

 species of the genus Rynchops, I have arrived at the result, 

 that this specimen is to be characterized as a new form ot 

 Rynchops, coming evidently nearest to R. melanura Sw. 

 This subspecies, named by me R. melanura intermedia, in- 

 cludes also the specimens, differing from true melanura, 

 quoted above, and is easily distinguished by the following 

 combination of characters. 



Under wing-cowerts smoky grey; rectrices dark umber- 

 brown on the upper surface, their white edges wider than 

 in R, melanura, being about 2 mm broad. The white tips 

 on the secondaries are also considerably wider, reaching 

 15 mm. 



»Iris blackish brown.» 



Concerning the distribution of this subspecies, nothing^ 

 is positively to be stated from the three known localities, 

 even if it may easily be supposed, that it deals with a 

 northern form of R. melanura. 



59. Chloroenas rufina pallidicrissa Chubb. — 1 c?, Nio 

 San Juan del Norte, March 24. 



60. Oenoenas nigrirostris Scl. — 1 J*, 1 $, C. R., Ta- 

 lamanca, Bitéi, Sept. 15; 1 $, juv., C. R., Caho Secco, Sept. 

 29; 1 ?, Nic, San Juan del Norte, Nov. 6. 



