376 DR. p. I-. SCLATER ON A NEW MEXICAN FINCH. [NoV. 26, 



laterally ; the papillae are arranged in oblique series, having a pave- 

 ment-like appearance. The lower jaws are rather narrow, and the 

 cleft of the mouth is much longer than broad. The maxillary is 

 entirely hidden by the prseorbital, which has the extremity truncated 

 and minutely serrated. The eye is much shorter than the snout, and 

 in the present specimen, which apparently is a young one, one-fourth 

 of the length of the head. There are twenty-three scales between 

 the snout and the spinous dorsal fin. The latter commences somewhat 

 nearer to the base of the caudal than to the end of the snout : the 

 soft dorsal and the anal have series of small scales between the rays ; 

 the former is higher than the spinous dorsal, and commences above 

 the middle of the anal fin. Caudal emarginate ; the anal is rather 

 higher than long, as high as the soft dorsal. The pectoral is inserted 

 above the middle of the depth of the body, and its length is four-fifths 

 of that of the head. 



Silvery, upper parts greenish ; dark stripes along the series of 

 scales. 



Myxus harengus. 



D. 4 I -i. A. |. L. lat. 38. 



A single series of small fixed teeth in the upper jaw, none in the 

 lower or on the vomer ; lips thin. Prseorbital serrated anteriorly 

 and inferiorly. Anterior dorsal spines of moderate length, half as 

 long as the head. 



Head and body are compressed, the greatest depth being about 

 one-fifth of the total. The cleft of the mouth is rather broader than 

 deep, and does not extend to the anterior margin of the orbit. Sides 

 and belly bright silvery ; back green. 



3. On a New Species of Finch, of the Genus Sycalis, from 

 Mexico. By Philip Lutley Sclater, M.A., Ph.D., F.R.S., 

 Secretary to the Society. 



In a small collection of Mexican birds lately sent to me for exami- 

 nation by M. Parzudaki, of Paris, I find a little Finch of the genus 

 Si/calis, which I propose to call — 



Sycalis chrysops, sp. nov. 



,S. brunnescenti-olivacea, cajnte obscuriore suhstriato: interscapuHo, 

 alls et Cauda nigricantibus, fusco marginatis : loris, oculorum 

 umbitu teetricibus subalaribus et corpore subtus fiavis, pectore 

 medio et lateribus obscurioribus, fuseescentioribus : rostro et 

 pedibus fuscis. 



Long, tota 40, alse 2"6, caudse r6 poll. Angl. et dec. 



Hab. In Mexico merid. 



Obs. Affinis S. arvensi, sed statura minore et loris ciliisque aureis 

 distinguenda. 



This bird is interesting as the first species of the genus Sycalis 



