Mr. P. L. Sclater on the Fissirostral family Bucconidae. 471) 



B. Nonnula, 



10. Malacoptila rubecula ^Spix). 



Bucco rubecula, Spix, Av. Bras. i. p. 51. t. 39. fig. 1. 

 Monasa phaioleucos, Teram. PI. Col. 323. fig. 2. 

 * Cuculus rufalbinus, Temm.,' Cuv. Regn. An. i. 455. 

 Lypornix rubecula, Sw. Orn. Dr. pi. 35. 



Monasa rubecula, Gray's Gen. p. 74 ; Gray, List of B. M. p. 50; Bp. Consp. 

 p. 147. 



M. ciuerascenti-brunnea : gula et pectore brunneo-rufescentibus : 



loris et ventre medio albis : rostro nigro. 

 Long, tota 6'0 -, alse 2*5. 

 Hab. prope pagum Malhada flumini S. Francisci proximum 



(Spix) ; in sylvis il. Amazonum (Wallace). 



The preceding characters are drawn up from a specimen be- 

 longing to Mr. Wallace. Others are in the British and Munich 

 Museums ; but I do not consider this a common bird in collec- 

 tions, and though I possess examples of twenty-one out of the 

 thirty-three species described in this Synopsis, the present is 

 one of those that I have never been fortunate enough to meet 

 with except as before mentioned. 



It is difficult to ascertain the true date of the publication of 

 the different feuilletons of Temrainck^s ' Planches Coloriees/ but 

 I believe Spix's name for this species was the first published, as 

 is generally allowed to have been the case. 



The name Nonnula — proposed for the subdivision of the pre- 

 sent genus which contains this and the next two succeeding 

 species, in a communication upon new Bucconida made to the 

 Zoological Society last December — I coined as a diminutive of 

 Nonna, i. e. Monaca, the word, I suppose, intended by Vieillot 

 when he established the genus Monasa. 



11. Malacoptila frontalis, Sclater. 



M. cinerascenti-brunnea : pectore brunneo-rufescente, quasi fere 

 ferrugineo ; ventre albescente : capite summo antice castaneo : 

 rostro nigro, mandibula inferiore basi flavescente. 



Long, tota 5*5 ; alse 2*5 ; caudse 2*3. 



Hah. in Nova Grenada. 



The British Museum contains two specimens of this appa- 

 rently new Malacoptila^ selected amongst other interesting novel- 

 ties from a collection lately received by Mr. S. Stevens from 

 Santa Fe di Bogota. I have to thank Mr. G. R. Gray for allow- 

 ing me to examine them. 



The species is most closely allied to the preceding, and inter- 

 mediate between that and the succeeding M. imficapilla. It may 



