398 Miscellaneous. 



British Association for the Advancement of Science, for the year 

 1844, on "British Fossil Mammalia," these fossils appear to belong 

 to Bos prisons, described in that work, page 234, 



The Clacton freshwater deposit has from time to time, ever since 

 its discovery in 1832, produced highly interesting remains of the 

 Elephant and other large Mammalia, in great numbers, now to be 

 seen in various museums ; a long series of freshwater Mollusca has 

 also been obtained from this deposit. 



The horn-cores so recently obtained from the Clacton freshwater 

 deposit are quite as large as any of that species heretofore found 

 there : their entire length is 2 feet 9 inches from base to point upon 

 the outer curve, 1 7 inches in vertical diameter, and 4^ inches from 

 front to back at their base. In these specimens we have also the 

 graceful double curvature and the deeply impressed grooves usual in 

 the horn-cores of Bos priscus, pointed out by Professor Owen in his 

 Report above alluded to. 



The curvature of these cores, on the inner side, is 7 inches from 

 the chord-line to the inner surface. 



Still larger specimens than the foregoing have been met with in 

 the freshwater beds at Clacton ; but as they do not possess the deep- 

 grooved character, and are of greater dimensions, they may probably 

 belong to a different species, and perhaps to Bos primigenius. 



I am. Gentlemen, 



Your obedient Servant, 



John Brown. 



Description of a new species of Pachyrhamphus. By P. L. Sclater. 

 Pachyrhamphus albo-griseus, sp. nov. 



^. Supra cinereuSj pileo cum nucha nitenti-nigris : tinea frontali 

 inter oculos alba : alis nigris, tectricibus et secundariis extus 

 late albo marginatis : subtus albus, prcecipue apud latera cine- 

 rascente tinctus : cauda nigra, rectricibus omnibus, sed harum 

 extimis pr(Bcipue, late albo terminatis : rostro plumbeo : pedi- 

 bus nigris. 



? . Saturate castanea, subtus valde dilutior, cinnamomescenti- 

 ochracea. (?) 



Long, tota 5*5, alse 3*0, caudae 2*4. 



Hab. New Grenada, Bogota. 



Mus. P. L. S. 



I possess an adult male specimen, and what, I think, is probably 

 the female of this Becard, which is a close ally of the two preceding 

 species. It is, I suppose, the New Grenadian representative of the 

 form ; and, I confess, it is not without hesitation that I separate it 

 specifically from P. marginatus. The differences are the further 

 extension of the black over the nape of the neck, the entire want of 

 black on the back, the more purely white colouring below, and the 

 much deeper white terminations of the outer rectrices in the present 

 species. — Proc. Zool. Soc. April 28, 1857. 



