110 Mr. 0. Salvin on Mr. Lawrence's 



exist between the coloration of male and female. What I be- 

 lieve to be the actual state of the case is this, that neither Mr. 

 Lawrence nor I have ever seen an adult male of this form either 

 from Panama or north of the Isthmus. From a female specimen 

 in our collection from Panama, I feel convinced that the so called 

 species is nothing more than T. xanthopygius, to which both Mr. 

 Lawrence's names must be applied as synonyms. 



(171.) Synallaxis nigrifumosa. 



Mr. Sclater and I have carefully compared an extensive series 

 of specimens of this form, from Costa Rica, Panama, and New 

 Granada, with the type of S. pudica, Scl. (Cat. Am. B. p. 151), 

 and have come to the conclusion that Costa- Rican are undistin- 

 guishable specifically from more southern examples, and that 

 the difference observable in the intensity of the dark colouring 

 in some individuals is due to age and sex. 



(177.) AUTOMOLUS RUFESCENS. 



A specimen sent us by Carmiol, corresponding accurately with 

 Mr. Lawrence's description of the above-named species, differs 

 in no way from the type-specimen of Phihjdor panerythrus, Scl."^, 

 in Mr. Sclater's collection, with which I have also compared it. 



(179.) Anabazenops lineatus. 



Having before me four specimens of this species from Costa 

 Rica and Veragua, I am able to state that they do not difi'er 

 from the types of A. subalaris, Scl. (P. Z. S. 1859, p. 141), with 

 which I have compared them. The specimen mentioned in 

 Mr. Sclater's ' Catalogue,' no. 971 (i.) from Pallatanga, as 

 " perhaps different " is in immature dress. Two of our Vera- 

 guan specimens are in similar plumage, and differ from the 

 adult in having the breast deep rufous, the longitudinal light 

 markings not appearing ; the head too is much darker. 



-f-(197.) Thamnophilus punctatus. 



Carmiol has recently sent examples of this species ; and we 

 have also received a number of specimens from Arce from 

 Veragua. According to the latter the sexes are almost similar, 



* Fkilydor scmirufiis, Scl., Cat, Am. B. Supp. p. 3G0 ; P. panerythrus, 

 Id, P. Z. S., 1862, p. 110. Ex N. Granadca (Bogota). 



