1908.] 



DR. KNUD ANDERSEN ON BATS. 



271 



General characters. — The angular emargination in the posterioi- 

 margin of nr, between cusps 5 and 7, is generally as well marked 

 as in any A. 'planirostris, sometimes reduced in size or almost 

 obliterated. The coloration of the fur is, in the only adult 

 individual available with quite unworn teeth, of the dark type, in 

 more aged specimens often light. The supi-aorbital stripes are 

 sometimes well marked ; the infi'aorbital stripes in all specimens 

 examined undeveloped or faint. 



A. j. (equator ialis and jamaicensis. — The skull of A.j. cequa- 

 iorialis averages larger, and especially broader, than in A. j. 

 jamaicensis, the zygomatic width being 18"3 mm., as against 17"4 

 in jamaicensis, the maxillary width (externally, across m^) 13'6, 

 against 12'6, the width across the cingulum of the upper canines 

 8'9, against 8"1 ; the teeth are a little larger, the maxillary 

 tooth-row being ll'O mm., against 10'3. In all these respects 

 A.j. cequatorialis is as much larger than A. j. jamaicensis as this 



Measurements of A.. \. jamaicensis and seqiiatorialis. 



Skull, total length, to front of c . . . 



„ mastoid width 



„ width of brain-case 



„ zj'gomatic width 



„ raaxillarj' width across m^ 



„ across cingula of canines... 



Mandible, to front of ine 



Upper teeth, c-m- 



Lower teeth, c-nij 



Ear-conch, length, inner margin , 

 „ length, outer margin 



„ width 



Tragus, length 



Lancet, length 



„ width 



Horseshoe, width 



Forearm 



PoUex 



3rd metacarpal 



IIP 



IIP 



IIP 



4th metacarpal 



IVi 



IV2 



oth metacarpal 



VI 



V2 



Interfemoral 



Lower leg 



Foot, withclaws 



Calcar 



A. j. jamaicensis. 

 95 adults, 

 65 skulls. 



MiN. Max. Med. 



mm. 



27 



14-2 



12 



16-2 



12 



7-7 

 18-8 



9-8 

 10-5 

 13-8 

 19-7 

 13-5 



6 



8-2 



6 



6-5 

 56'o 

 13 

 50. 

 15-8 

 26 

 13-7 

 49 

 13-8 

 16 

 51 

 10-8 

 127 

 11 

 21 

 14-2 



5-2 



mm. 

 29-2 

 161 

 13-3 



18-2 

 13-7 



9-1 

 20-7 

 11 

 11-8 

 16 

 22"2 

 16 



7"7 

 10-8 



7-8 



8-5 

 65 

 15-7 

 61 

 20 

 32-8 

 17-8 

 59-8 

 17-2 

 21-5 

 62-5 

 13-8 

 17 

 19 

 24-2 

 17-7 



7-8 



mm. 

 28-3 

 15-1 



7 



9-6 

 6-8 

 7-6 

 60-1 

 14-2 

 53-7 

 17-3 

 28-8 

 15"6 

 52-9 

 15-2 

 19 

 547 

 11-9 

 14-5 

 15-5 

 22-8 

 16-1 

 6-5 



A.j. (equatorialis. 

 7 adults, 

 6 skulls. 



MiN. Max. Med. 



mm. 

 28-8 

 15-2 



127 ! 12-8 



17-4 1 18-2 



12-6 13-3 

 8-1 I 8-3 



19-5 I 20-3 



10-3 I 10-8 



11-1 11-8 



14-8 15 



21-3 227 



14-3 14-8 



7-2 



9-8 



7-4 



8-5 



60-8 



14 



54-5 



177 



30-3 



16-2 



537 



15-8 



19-8 



64"5 



12 



14-2 



17-5 



22-8 



16 



7 



mm. 



30 



16-2 



13-5 



18-5 



14 



9-2 

 21-5 

 11-2 

 12-6 

 15-8 

 23-5 

 157 



7-5 

 11 



7-5 



9 

 66 

 15-2 

 59-5 

 19-3 

 33 

 17-8 

 57-2 

 17-2 

 22 

 597 

 13-2 

 17-2 

 18-5 

 26 

 17 



8 



mm. 

 297 

 15-8 

 13-1 

 18-3 

 13-6 

 8-9 

 211 

 11 

 12-1 



62-9 

 14-4 

 56-9 



18-4 

 30-9 

 16-9 

 55'4 

 16-6 

 19-9 

 57-2 

 12-8 

 15-4 



24-1 



16-8 



7-2 



Proc. Zool. See— 1908, No. XVIII. 



