THE FAMILIES AND GENEEA OP 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 



formula : 



-2-.1. -2-4567 .1-1 1- 



1 2-2 



\->P m 2-2' 



--32. 



123.1.-2-4567 3-3' ° 1-1'/"" 2-2' "" 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 NOCTILIONTD2E. 



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. Vespertiliones {Vespertilionidw) (part; 

 Noctilionina, part) Bonapabte, Saggio di 

 una distrib. metodica degli Anim, Vert., ^ g- 18.— Diclidurus vikgo. Cham- 

 „ j^ peeico, Guatemala. No. 120577. 



x 1-. 



1838. Vespertilionidw (part; 'Noctilionina. 



part) Bonaparte, Nuovi Annali delle Scienze Xaturali, Bologna, Anno 



I, Tomo II, p. 112. 



1838. Vespertilionidw (part ; Noctilionina, part) Gray, Mag. Zool. and Bot, 



II, p. 498, December, 1838. 



1855. [Vespertilionidw] " Vespertilionides " (part: Noctilionina) Gervais, 

 ExpM. 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, I860. 



1870. -Vespertiliones (part; Noctilionrs, part) Fitzinger Sitz.-ber. kais. 

 Akad. Wissensch., Wien. Math. -Naturwissenseh., Classe, LXI, Abth, 

 I, p. 457. 



