THE FAMILIES AND GENERA OF .BATS. 
95 
wide supraorbital ridge; clavicle greatly expanded, its width just 
below middle more than one- third of its length; tibia (Plate XII, 
figs. 1, 2), with a longitudinal groove, so deep that the bone, has the 
appearance of a hollow cylinder slit along the outer side. 
Principal subdivisions. — The subfamily contains the one genus 
Diclidurus. 
Genus DICLIDURUS Wied. 
1819. Diclidurus Wied, Isis, p. 1629. 
1878. Diclidurus Dobson, Catal. Chiropt. Brit. Mus., p. 391. 
Type-species. — Diclidurus albus Wied. 
Geographic distribution. — Same as that of subfamily. 
Number of forms. — Three species are currently recognized. 
Characters.— The characters of the genus Diclidurus are the same 
as those of the subfamily. The following may be added: Dental 
2-.1.-2-4567 .1-1 1-1 2-2 3-3 
p P m 2 — 2’ rn 
formula 
%. K 
=32. 
123.1.-2-4567 " 3-3’ ” 1 -l’W- 2-2’ T 3-3‘ 
« Wing without sac. Tail curved upward and forward, its tip pene- 
trating uropatagium and associated with 
structures in the membrane which appear 
to be glandular. In the three known spe- 
cies the color is white. 
Species examined.— Diclidurus scutatus 
Peters and D. virgo Thomas. 
Family NOCTILIONIDJE. 
1821. Noctilionidw Gray, London Medical Re- 
pository, XV, p. 299 (part), April 1, 
1821. 
1827. Noctilionina Lesson, Man. de Mam- 
malogie, p. 99 (part). 
1831. V espertiliones ( V espertilionidw ) (part; 
Noctilionina, part) Bonaparte, Saggio di 
una distrib. metodica degli Anim, Vert., F 18. -Diclidurus virgo. Cham- 
^ perico, Guatemala. No. 120577. 
* ' X ly. 
1838. Vespertilionidw (part; Noctilionina, 
part) Bonaparte, Nuovi Annali delle Scienze Naturali, Bologna, Anno 
I, Tomo II, p. 112. 
1838. V espertilionidw (part; Noctilionina, part) Gray, Mag. Zool. and Bot., 
II, p. 498, December, 1838. 
1855. [V espertilionidw'] “ Vespertilionides ” (part: Noctilionina ) Gervais, 
Exped. du Comte de Castelnau, Zool., Mamm., p. 52. 
1865. Brachyura Peters, Monatsber. k. preuss. Akad. Wissensch., Berlin, 
p. 257 (part). 
1866. Noctilionidw (part; Noctilionina ) Gray, Ann. and Mag. Nat. Hist., 
3d. ser., XVII, p. 92, February, 1866. 
1870. Vesjiertiliones (part; Noctiliones, part) Fitzinger Sitz.-ber-. kais. 
Akad. Wissensch., Wien, Math. Naturwissensch., Classe, LXI, Abth, 
I, p. 457. 
