l.")S B.EODON. SACCOPTERVX. RHYNCHISCUS. 







Genus Baeodon. 



Basodon alleni (Thomas). 



Rhogeessa alleni Thomas, see Elliot, Check-List Mamm. N. Am. 

 Cont. and West Indies, F. C. M. Pub., VI, 1905, p. 489. 



Bceodoii Miller, Proc. Biol. Soc. Wash., XIX, 1906, p. 85. 



Genus created for Rhogeessa (!) alien i Thomas, No. 1176, Check- 

 List. 



"Like Rhogcessa (!) but with reduction of outer lower incisor car- 

 ried so far that the tooth has become a mere functionless spicule less 

 than one-twentieth as large as first or second incisor, nearly concealed 

 beneath cingulum of canine." 



Bceodon alleni is the only known species. 



Family ' Emballonuridae. 

 Subfamily Emballonurinae. 







Genus Saccopteryx (167). 



Saccopteryx bilineata centralis Thomas. 



Saccopteryx bilineata centralis Thos., Ann. and Mag. Nat. Hist. 

 Ser. 7, XIII, 1904, p. 251. 



Type locality. Tcapa, State of Tabasco, Mexico. 



Geogr. Distr. Southern Mexico to Costa Rica. 



(ii'nl. C/tar. Like S. bilineata but smaller. 



Color. Like S. bilineata. 



Measurements. Total length, 64; tail, 14; leg and foot, 30.5; 

 calcar, 18.5; forearm, 47. Skull: Greatest length, 15.6; basal length, 

 12; greatest breadth, 10.4; interorbital breadth, 4.2; breadth of 

 braincase, 8; pululul length, 5.4; length of upper tooth row, including 

 canine, 6.5; lower tooth row, 6.8. 



Genus Rhynchiscus. 



I\/iyncliiscns Milk-r, Proc. Biol. Soc. Wash., XX, 11)07, P- 65. 

 Proposed in place of Rhynchonycteris Peters, 1867, nee Rhin- 

 chonyeteris (!) Tschudi, 1844-45. Type Vespertilio naso Wied. 



1 For im -lulling S<irct>f>trr\'.\-. Kln'inlii^ii^ :m<l BolanttOpteryx in this family, see 

 Miller, liull. I'. S'. Nat. Musi, No. 57. "> () 7. I'l'- S 5. ' S( '. 87, 89,92. 



