On a Megalosaurian Tibia from the Loioer Lias. 2.j7 



to be quite difFerent from any other species I know. I 

 propose to call it 



Mus granti, sp. n. 



A mouse about the size of M. colonus, with tail equal in 

 length to head and body. 



Fur soft and rather long, 10-12 mm. long on back. 

 General colour above a buffy drab, below white. Indi- 

 vidual hairs of upper surface "plumbeous" basally for | 

 their length, then " pinkish buff," with, however, a consider- 

 able admixture of all-black hairs, proportion of these latter 

 smaller on flanks; on the lower surface from chin to anus 

 basal I " cinereous," remainder pure white. Hands and. 

 feet white. Tail dark, rather tliickly clothed with stiff hairs, 

 2 mm. long near base, lengthening to 5 ram. at tip of tail, 

 almost forming a brush. 



Posterior median tubercle of second molar larger than 

 anterior and than any of the median tubercles of anterior 

 molar. 



Dimensions of the type (measured in the flesh) : — 

 Head and body 120 mm ; tail 122 ; hind foot 23; ear 17. 

 kSkiill : greatest length 31*0 ; basilar length 25 ; zygomatic 

 breadth 15; diastema 9; upper molar series 5. 

 Ildb. Deelfontein, Cape Colony. 



Ti/pe. Adult female. B.M. no. 2. 9. 1. 86. Original 

 number 114. Collected February 2nd, 1902, by C. H. B. 

 Grant, and presented by Col. A. T. Sloggett, R.A.M.C. 



A series of six specimens agreeing in all essential cha- 

 racters. The mammary formula is rather doubtful, but is 

 most probably 5 — 2 = 10, as in M. colonus. 



This species resembles M. damarensis in the large size of 

 the posterior median tubercle of the upper second molar, but 

 in both skull and body it is much smaller and lacks the pure 

 white belly of de Winton's species. This character also 

 separates it at sight from M. lehochla, Sm., M. pedulcus, Sund,, 

 and M. namaqaensis^ Sm. 



XLI. — Note on a Megalosaurian Tibia from the Lower 

 Lias of Wi/mcote, Warwickshire. Bv A. Smith "Wood- 

 ward, LL.D., F.R.S. 



The British Museum is indebted to ]\Iiss Evelyn Irby for the 

 tibia of a Megalosaurian Dinosaur recently discovered in 

 the Lower Lias of Wilmcote, near Stratford-on-Avon. 'i'he 

 Ann. (f; .1%. A'. His'. Ser. 8. Vol. i. 17 



