NATURAL SCIENCES OF PHILADELPHIA. 325 



45. Dendropicus squamosos. (Vieillot.) 

 Picus adspersus, Natterer. 



Picus spilogaster, Wagler, Syst. Ad. No. 59, (1827.) 

 Adults of both sexes are given in the beautiful plate of M. Malherbe, (pi. 

 60.) The young male in the Acad. Mus. from the Massena collection, is la- 

 belled " Picus spilogaster, Wagler," in a hand-writing that I do not recognize. 

 It differs only from the adult male in having the top of the head clear cop- 

 pery red, and the under parts of the body with the greenish-brown much 

 predominating and somewhat disposed to form longitudinal stripes, the white 

 spots and bauds being less clearly denned. It seems to be the bird described 

 by Wagler, as above. 



46. Chrtsocolaptes sultaneus, (Hodgson.) 



Of this fine species there is not a sufficient number of specimens in the 

 Acad. Mus. to warrant any conclusion on the specific differences between it 

 and C. DeLessertii, (Malherbe.) There is, however, one very handsome male, 

 which appears to be the latter, and my opinion, at present, is that the two 

 names are synonymous. 



47. Chrysocolaptes puncticollis, Malherbe. 



Several specimens of this species are in the Acad. Mus., and generally are 

 quite similar to M. Malherbe's plate and description, but differ amongst them- 

 selves in some particulars. Two specimens from Capt. Boys' India collection 

 have the spots on the breast triangular and cordate, while the female (of the 

 same specimens,) has the front and throat nearly pure black, with but few 

 minute spots. Two other specimens, from the Massena collection, have the 

 breast with spots tending to form longitudinal stripes, like C. bengalensis. 



48. Gecinus vittatus, (Vieillot.) 

 Picus dimidialus, Temminck. 

 Picus viridanus, Blyth ? 



Seven specimens in the Acad. Mus., all of which appear to be from the 

 Malay Archipelago, are precisely as described by Malherbe and Temminck. 

 In all of these the plumage of the under parts of the body is characterized 

 by every feather having a narrow longitudinal stripe on each side (or sub- 

 marginal), uniting at the tip, but with no medial line on the shaft of the 

 feather, and adults and young are alike in this respect. 



Two specimens from Siam in the Acad. Mus. are like the preceding, but 

 differ in having the under plumage with medial lines on every feather strongly 

 defined, quite as much so as in G. striolatus (Blyth). These are the only speci- 

 mens in the Museum which are certainly from continental Asia, and are exactly 

 as in the description by Mr. Blyth of Picus viridanus in Jour. As. Soc. Ben- 

 gal, xii. p. 1000. He states, as a character, a "narrow medial line upon the 

 shaft," which, as above stated, does not appear in Javanese specimens. In 

 addition, the black superciliary band and black moustache in Mr. Blyth's spe- 

 cies are much more clearly marked. Though nearly allied, my impression is 

 that these two birds may be regarded properly as distinct species, as they are 

 given by Messrs. Horsfield and Moore, in Catalogue of Birds in the East India 

 Company's Museum (ii. p. 660). 



49. Gecinus viridanus, Blyth. 



As stated in the preceding article, two specimens from Siam are precisely 

 this species as described by Mr. Blyth, and are, very probably, distinct from 

 G. vittatus. 



50. Gecinus xanthoderus, (Malherbe.) 



This bird, though bearing some resemblance to the young of G. chlorolophut 

 (Vieillot), is quite distinct, and, so far as I can see, a perfectly valid spe- 

 cies. It is given as identical with that species by Messrs. Horsfield and 



1863.] 



