1905.] OF THE GENUS RHINOLOPHUS, 143 
regarded as a large and a small variety of one species. In 1808, 
Montagu pointed out some of their distinctive characters, and 
proposed for the smaller species the name Vespertilio minutus, 
being evidently unaware that the two Bats had already twice been 
specifically separated—by Bechstein in 1800, and by Hermann in 
1804, Montagu’s name, as being antedated by “ hipposiderus,” 
was soon almost completely forgotten (it is not recorded in 
Dobson’s Catalogue). The original description of V, minutus 
being, however, based on English specimens, the name is now 
available for the British race ot hipposiderus. 
Remarks. We are now able to form a much clearer idea of the 
past history of Ah. hipposiderus. It originated from a Bat 
allied to Rh. minor, somewhere in Asia, most probably near the 
western border of (if not within) what is now called the Oriental 
Region. From there it spread southwestwards into Africa, west- 
wards through the Mediterranean countries to Central Europe 
and the British Islands. There is, to my knowledge, no record 
of Rh. hipposiderus from Egypt; if this is evidence that it does 
not occur, and has not occurred, there, it is at the same time a 
Measurements of Rh. midas and hipposiderus. 
| Rh. midas. Rh. hipposiderus. 
| | 
| Sad | minimus. | f. typica. minutus. 
| Typ ni 132 eee | 33 specimens,| 30 specimens, 
| : | 12 skulls. | 6 skulls. 2 skulls. 
Min. Max. | Min. Max. | Min. Max. 
mm. | mm. mm.| mm. mm.| mm. mm. 
Ear 8, leng Gee sono anddod so AGU CeO 1/ | 14 16 | 15 165 14:2 15°5 
|, greatest breadth 00... ccc. 13 VoO)) ula esl dar 12:8) hasten Ties 
Nose- Teav es, total Teneth) .2...2.0...... 12°8 ) WOR TY) hale) 18) 10 118 
3 breadth of horse-shoe ... 73 6 68 Goa 6 67 
IM OTeaTITENe SS EY, hth readies emcee By Sule, Bis} |) BD) ae || BS) BD) 
rol AACA! — soasoonaceadbon soa sasusa x08 242, 22:2 25:7 | 248 27:3 | 29°38 249 
TITEL EN Sh nee ea en a UI Pte WAG yp Ha 128 | 197 14-9 11:6 13:2 
OLY. PE GASRIGoaEComtmchob dasa acne Noe | ists} |) dlse7/ US) ey USF 163 18°7 
4th metacarpal — Eee eetcaenanaeeernces 27 25) e292 P28 3072) Zu 29 
1A OU enon peacend aaacoe nen sosgmaacasnscs ors Wal IN, G8 a8 7 8 Gia 8 
Tee i Sys UE cutie hn Semeachaa saan a 12 I 109 13:2 12 141 ile Wee 
5th metacarpal — HES 2 Sener tN 25:8) || 2315  27e7 | 272 29:7" |" 2av7 98:2 
Vv. Sa Ul Ae) Oe a Koe39 72 98 
LR ED MMe Connect Bena Sao Hine aoc rR OGG 12:2 | ils) 1g) TBS} 233 12:5 1438 
Tail PE SLs REA GaSe SEEM Nee ana CSS 2405 | 235 277 | 262 30:3 23°5 27 
io werslera eae ee nce ieee: NO Gays} |) AS UD). | GSS. S55 
Foot ....: Rees eythane cate ae 76 RD IY a RSS 7-5 R7 
Skull, total length | Pe etree coke ccts ol 15:9 145 15° 16 16°2 16 16 
» mastoid Rridthen eecet ane fae i ee ee “en ARS} 73 7:8 
width of bram-case 07 00.-.0......| i il Gl GH | G8. Ge 68 68 
5 “zygomatic width .......6:0......:. IAS eee EAD VRS 8 8 8 
fy WaECIMENP GrAGhAN aac soo oodosscnavcs dee 58 Be Gs) | BS) BS 56 57 
.»,  Supraorbital length . 45 4 45 | 42 5 43 AA 
width of nasal sw ellings .. 4-2 a7 83 | Be al 4, 4, 
Mandible, length .. Re on EL HORS it Srey TO. || NO 10°2 co | LOD 
Upper 1 aT REA Os Nang easel Si SS i Ba Bul Ar) By. i 
IDO WGP WEALD “ang ansooanoe soo ops eto-aboonn gaoa00 6-2 56 8658 58 6 AD 6 
