42(1 Mr. R. II. Whiteliouse on 



Ptilocercus lowi continentis, subsp. n. 



Very similar to true JBornean lowi, but distinguished by 

 the following characters : — Colour above drab-grey, that of 

 lowi, so far as can be seen on rather faded specimens, more 

 tinged with isabella. Underside soiled creamy, fairly sharply 

 defined from the grey sides. Dark eye-mark more extended 

 anteriorly, reaching nearly to the tip of the muzzle. Hands 

 pale buffy above, as in lowi, but feet with the metatarsals 

 dark brown, contrasting markedly with the buffy toes. Fine 

 hairs of " naked " part of tail shorter and more sparsely 

 scattered than in lowi ; proximal half-inch of the plume 

 black, remainder white. 



Skull of about the same length as in lowi, but the muzzle 

 and palate markedly narrower ; the breadth of the muzzle 

 above i 2 is 6'0 mm. in two adult lowi, 5"1 in the type of 

 continentis ; distance between outer corners of m 2 12*1 mm. in 

 lowi, 11 in continentis. 



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



Head and body 133 mm. ; tail 167; hind foot 26'5 ; ear 17. 



Skull: condylo-basal length 37"3; greatest breadth 22'5 ; 

 interorbital breadth 8 - 5 ; brain-case breadth 15; palatal 

 length 17'7; length of upper tooth-series 17"6. 



Hab. 10 miles from Kuala Lumpur, Selangor. 



Type. Adult male. B.M. no. 10. 4. 17. 1. Presented by 

 the Selangor Museum. Obtained 22nd December, 1903, by 

 a Museum collector. 



" Caught in a nest made of leaves and fibre in a tunnel 

 2 feet lon^ in a hollow branch of a tree/' 



LX1II. — Some Remarks on the Teleostean Caudal Fin. By 

 Richard H. Whitehouse, M.Sc, University of 

 Birmingham. 



In a recent number * of this journal Mr. C. Tate Regan 

 contributed an interesting paper on the caudal fin of some 

 Teleostean fishes, and in the course of his remarks he refers 

 to a recent paper of minef which gave a summary of some- 

 what extensive observations on caudal fins in fishes. Mr. Re- 

 gan says "the caudal fin skeleton of the Clupeidse differs 



* April 1910, p. 354. 



t Proc. Royal Soe. B. lxxxii. p. 139. 



