140 MR, K. ANDERSEN ON BATS [May 16, 
of hairs of the upper side and the whole of the under side “ drab- 
erey.” 
(2) Aged individuals; skins; Cyprus, Malta, Balearic Islands, 
Switzerland, Germany. Much browner. General colour above 
brownish “ drab,” with some individual variation in the shade of 
the colour: sometimes almost ‘“wood-brown” (lightest extreme), 
sometimes with a tinge of “ Prout’s brown” (darkest extreme) ; 
horse-shoe patch indicated, or quite obliterated; base of hairs 
“ecru-drab”; under side ‘“ ecru-drab,” sometimes with a tendency 
towards “ drab-grey.” 
Skull, As in Rh. midas. 
Dentition. AS in minor and midas. In the series of skulls 
examined (20; of all races) there is, of course, some variation in 
the position of p,; the general rule is: p, external, p, and p, 
almost or quite in contact; one extreme: p, almost in row 
(one skull), and p, and p,, therefore, well separated ; the other 
extreme: p, not only external, but hair-fine (four skulls; teeth 
unworn), or disappeared and the alveoli obliterated (two skulls; 
teeth unworn). 
Distribution. From Gilgit to Ireland; from the Baltic to 
Sennar, 
Geographical races. The series examined—95 examples, from 
almost the whole area occupied by the species—enables me to 
recognise three races of 2. hipposiderus. 'The first two of these 
would probably be called distinct species by other zoologists. 
27a. RHINOLOPHUS HIPPOSIDERUS MINIMUS Heugl. 
Khinolophus minimus Heuglin, N. Act. Acad. Czs. Leop.-Car. 
xxix. (1861) p. 6. 
Rhinolophus hipposiderus minimus Andersen, Ann. & Mag. Nat. 
Hist. (7) xiv. (1904) p. 455. 
Diagnosis. Small: forearm 34:7-38 mm. 
Details. As lately pointed out by me elsewhere (1. s. c.), 
v. Heuglin’s 2h. mininws, first described from Keren in Erythrea 
(type in the Stuttgart Museum), is a well-marked geographical 
race of Kh. hipposiderus, differing from the Central Huropean 
form by its considerably smaller size. At the same time I 
mentioned that the British Museum possesses an example from 
Sennar indistinguishable from the type specimen of minimus. 
A subsequent examination of the whole series of Rh. hipposiderus 
preserved in the British Museum has revealed the rather surprising 
fact that Kh. h. minimus is by no means confined to Keren and 
Sennar, but generally distributed over the Mediterranean Subregion. 
It differs from the Central European form in being in every respect 
smaller ; in some respects, as it seems, absolutely smaller, in others 
at least on an average. I find the length of the forearm to be 
the best means for a ready discrimination: in minimus, 
347-38 mm.; in the typical form, 39-41:7 mm. For other 
details, cf. the measurements on p. 143. 
