New Asiatic Apodemus, Evotomys, and Lepus. 447 



applied to four specimens. Of these, fig. 2 of pi. 576 may 

 be taken as the type, distinguished from T. perforata by its 

 very narrowly elliptical form. The name T. variabilis of 

 Sowerby may be now retained for it without confusion, 

 because Schlotheim's T. variabilis is a Rhynchonella. 



The next name is T. maxima^ Charlesworth *. The larw^e 

 example which he figures may be taken as the type; the 

 smaller shell is much narrower and is of the shape of 1\ varia- 

 bilis. The large T. maxima is somewhat narrower and more 

 elliptical than T. spondi/lodes, and is rather broader than 

 T, perforata. The shells which Davidson figures in his 

 ' Monograph of Tertiary Brachiopoda,^ pi. ii. figs. 1-4, repre- 

 sent T. maxima, while his fig. 5 is a young example of 

 T. variabilis. 



Whatever opinions may be held as to the advisability of 

 distinguishing all these forms by name, yet placed in this 

 order — T. spondylodes, T. maxima, T. perforata, T. variabilis 

 — the forms indicate a sequence passing from broadly oval to 

 narrowly elliptical, the broadly oval stage giving place to the 

 elliptical earlier and earlier in each form, so that while nearly 

 adult T. maxima shows broadly oval growth-lines, the quite 

 youthful T. variabilis shows elongately elliptical growth-lines. 



Besides these forms there are the dwarfs, which may be 

 the final expression of the series ; mixed with them may 

 be some of the young of the other forms which came to a 

 premature end. 



LXXI. — Neio Asiatic Apodemus, Evotomys, and Lepus. 

 By Oldfield Thomas. 



Apodemus t semotus, sp. n. 



27. Mus , Swinhoe, P. Z. S. 1864. p. 382. 



G5. Y Mii8 hadius, Hodgson, id. P. Z. S'. 1870, p. 637 {nee Hodgs.). 



Like " Mus sylvaticus draco" B.-Ham., but much darker 

 coloured. 



Similar in general })roportions to the Fo-kien draco. 

 Fur thin, not spinous, at least in winter, 7-S mm. in length 

 on the back. General colour dark brownish, something be- 

 tween " bistre'' and " Trout's brown," quite dift'erent to the 

 rufous or fulvous of the Chinese forms chevrieri and draco. 

 Under surface soiled grey, the hairs shity for four-fifths their 

 length, their tips dull whitish. Ears rather large, almost 



* Ann. & Mag. Nat. Hist. 1837, p. 92. 



t Kaup, 1829. Anttdiiling Micromys, Dobue, 1841. Type, A. ayrarius. 



