Deyeneration in l/te Teeth of ( \reii and 'Sheep. 201 



may possibly cover it in very fresh specimens. Thorax and 

 sciitcllum l)lackisli, covered with supcriiicuinhcnt {^oldcii- 

 yellow puhcsceiu'c, and h)nger hairs of the same colour at 

 the sicU's, on the postirior honU-r of tliorax, and on the 

 RcuteUnni ; lirca^t covered with tawny t(»Micntiiin and with 

 80n)e h)n<; white hairs. Abdomen reddish yellow, with sonic 

 tawny tonientuni and eovercd with appnssed gohlcn-ycllow 

 pubescence, with whiih is inlerniixed black pnbcs(;encc of 

 the same nature, apex of abdomen l)ecomes somewliat darkiT ; 

 underside palcr-coloured with white pubescence. f-'''gs 

 reddish yellow ; the tibi;c paler yellow ; the tarsi dusky ; 

 pubescence chiefly black with some white hairs on coxa; 

 and on the femora. \\"tn(/s clear; stij^ma yellowish ; veins 

 reddish yellow; appendix very \o\vr and curved in tlic type, 

 but I'ot so lonj; in the other female. 



Malt- is alto<jether paler in appearance. Eyes Mith the 

 large facets takini; u|) two-tiiirds of the surface, reachiu"- 

 beyond the apex of the frontal triangle, but not quite reacliiu"' 

 the vertex, so that a narrow border of the small facets 

 extends to the vertex. Thorax with the pubescence a dirty 

 white colour and much longer ; this ap|)lies also to the 

 scutellum. Abdomen with the same-coloured pubescence on 

 a paler ground-colour, f-or/s rather j)alerin colour. 



A female from S. Queensland {Dr. T. L. Bancroft), 

 1908, 72, lias the legs wholly rcdiiish yellow, and the pubes- 

 cence on thorax and abdomen paler in colour. 



XX III. — Xotes on D^n'neration in the Te<th of Oxen and 

 Sheep. By J. Wilfrid Jacksox, F.G.S. (Assistant- 

 Keeper, Manchester Museum). 



In a Report on the Animal Remains discovered at Corsto- 

 ])itum (Corbridge-on-Tyne) * ^^lessrs. A. Meek and R. A.H. 

 Gray call attention to the absence of the first lower pre- 

 molar tooth in several jaws of oxen found on the site. This 

 form they considered distinct from the domesticated cattle 

 [Dos taitrns, var. longifrons) of Roman and earlier times, and 

 it was accordingly described by them as a new wild sj^eeies, 

 viz. Bos si/lves/ris. They further state that this species is 

 represented to-day by the Chillingham herd, in which there 

 is apparently a similar absence of the first lower premolar. 



* ' Archrcol. /Eliann,' 3 scr. vii. 1011, pp. S»9 et trq. 



