1905.] OF THE GENUS RHINOLOPHUS. Ill 



Details. — (1) Compared with tragatus : On an average (as a 

 rule also absolutely) markedly smaller: forearm 57'2-59'3 mm. 

 (tragatus : 59-63) ; but the horse-shoe is, nevertheless, of 

 the same excessive breadth : 9-9*5 mm. (tragatus : 8-8-9"7). 

 Skull considerably smaller and narrower, but .^(in conformance 

 with the broad horse-shoe) with rather broad nasal swellings : 

 comparativeli/ as broad as in tragatus, but, owing to the smaller 

 size of the skull, not absolutely so. Teeth markedly smaller, the 

 tooth-rows shorter. 



(2) Compared with regulus : Of approximately the same size 

 (or nippon rather smaller), but horse-shoe considerably broader : 

 9~9'5 mm. (regulus : 8'2-8'8). Skull generally smaller and 

 narrower, but nasal swellings, nevertlieless, quite as broad as 

 in regulus (comparatively, therefore, decidedly broader). Tooth- 

 rows markedly shorter. 



(3) Compared with the western races : The broad horse-shoe 

 pi'e vents it from being confused with any of the western forms. 



Colour. As in adult individuals of ferrum-equimvm fi'om 

 Europe*. No quite young specimens examined. 



Dentition (5 skulls). In two skulls p^ is pi^esent on both sides ; 

 in two (teeth vinworn) on one side only ; in one (teeth very 

 slightly worn) lost, but the alveoli not quite oblitei-ated. p"* is 

 present in all skulls examined. The cingula of the upj^er canine 

 and p* not only less completely overlap than is generally the 

 case in the other races, but in one skull the two teeth are very 

 slightly, in one quite distinctly, separated. This dentition is 

 decidedly more primitive than in the western neiglibours of this 

 race, tragatus and regulus. 



Distribution. S. China (Shanghai). Pt. Hamilton. Japan. 



Remarks. 1 find the examples from Shanghai and Pt. Hamilton 

 (S. of Korea) indistinguishable from those from Japan. 



14 6. Rhixolophus ferkum-equixum tragatus Hodgs. (Plate 

 IV. fig. 14 a, 6, c,d.) 



Rhinolophus tragatus Hodgson, J. A. S. B. iv. no. 48 (Dec. 1835) 

 p. 699; Peters, MB. Akad. Berlin (1871), p. 312. 



Rhinolophus fer rum- equimmi (partim) Dobson, 1. s. c. 



Diagnosis. Size largest, horse-shoe very liroad. Skull and 

 tooth-rows : the extreme. 



Details. — (1) Compared with nippon : see this form, supra. 



(2) Compared with regulus : On an average larger, with markedly 

 broader horse-shoe (but no sharp) line of separation, the maxima 



* According to Temminck the fur of nippon is " plus long, plus abondamnient 

 feutre, plus soj'eux et moins lustre " than in femim-eguiimm from Europe, and the 

 colours " different egalement." In the length and abundance of the fur I ani unable 

 to find any tangible difference between nippon, tragatus, undferrum-equinnm. As 

 to the colours (two well-preserved skins : Fuji and Nikko), it is quite the same 

 as in darker individuals of tragatus, and this again as in fullj' adult individuals of 

 the typical ferrum-equimim ; laid side bj' side these Bats are indistinguishable in 

 colour. " 



