On new Forms of Sfenotlnnnntons Bits. 419 



EXPLANATION OF PLATE X. 



Fi(j. 1. Afi/riiilr/)iii liihcritica, Traqimir ; left side view (if fish, nat. sizP. — 

 r<);il-Mon.siiivs ; Jiirrow CoUicrv, Kilkcniiv, Iruland. [Brit. Mus. 

 no. V. i)(W4.] 



I'if/. 1 a. Soale-ornameut of .sain o specimen, five times nat. size. 



Fi(j. 1 h. Fin-raj.s of same specimen, five times nat. size. 



LXI. — Brief Duujnones of a neio Genus and Ten new 

 Forms of Stenodermatous Bats. By Knud Andersen. 



The subjoined diagnoses are preliminary only. A monograph 

 of the genera Uroder?na, Enchisthenes, and Artiheus, based 

 on the material in the Britisli Museum and the United States 

 National Museum, is ready in manuscript and will be 

 published elsewhere before long. 



Enchisthenes'*, oen. nov. 



Allied to Aritbeus, but median upper incisors simple (in 

 Artiheus bifiJ) ; m^ in row, i. e. situated directly behind nx^, 

 quite or very nearly as broad as the hinder margin of this 

 latter molar (in Artiheus rudimentary and situated postero- 

 internally to m^, or entirely wanting) ; m^ comparatively 

 large, equal to about i of m^, (in Artiheus equal to g— ^'2 of Wg 

 or entirely wanting). Tragus with a pointed, upwardly 

 directed projection on the inner margin near the tip (no trace 

 of a similar projection in any species of Artiheus). 



Type. — Artiheus Harti, Thos.f ; Trinidad. 



Species. — The type of the genus is the only species known. 



Uroderma Thoniasi, sp. n. 



Allied to U. hilohatum, Ptrs,, but with noticeably larger 

 skull, longer tooth-rows, and larger ears and nose-leaves. 



Length of skull, in two specimens, from inion to front of 

 canines, 24*7-24'8 mm. (of '2,2 skulls of U. bilobatum, from 

 localities dotted over the whole area inhabited by the species, 

 22-23*3 mm.) ; maxillary tooth-row 8-9-9 mm. (7*8-8'5mm.) ; 

 length of ear-conch from base of outer margin 18-18*5 mm. 

 (15"7-16*8 mm.); width of ear-conch 12*8-13-7 mm. (11-12 

 mm.) ; greatest width of lancet 6-'2-6'5 mm. (4'8-5 mm.). 



* 'Ey;^etcr^ei'/jf, armed \\-ith a spear (eyxos or e'yxfos, spear ; crdevos, 

 streugtli), in allusion to the Ibrm of the erect portion of the nose-leaf. 

 t Ann. & Mag. Nat. Hist. (6) x. pp. 409-410; Nov, 1692. 



