CHIROPTERA 47 



II. TEETH AND SKULLS: 

 I. Nasal Cartilages well developed : — 



I . Four functional teeth in tOOth-row behind upper canine — 



(A) No rudimentary cheek-teeth . | ^^'^^f f ^f^'^^ | p- 130 



(B) A minute tooth internal to tooth- 



serotinus / 



row between canine and first 

 grinder. 

 (a) First lower grinder minute, its 



tip very much lower than 



summit of third ; upper sur- I BARBASTELLA\ 



face of rostrum concave, and 

 facial profile descending ab- 

 ruptly to nasal region . 

 (b) First lower grinder large, almost 

 equal in.height to third ; upper 

 surface of rostrum convex, and 



barbastellus ( '^' 



-NYCTALUS 



N. noctula . . p. 58 



cranial profile a gradual slope 



(a') Outer upper incisors al- 

 most double inners in 

 section ; greatest length 

 of skull about 19 mm. . 



(b') Outer upper incisors al- "| 



most equal to inners in I ^ , . , . „ 



section ; greatest length r*^- '^"'^'^ • • P- »3 

 of skull about 15 mm. . ] 



2. Five functional teeth in tooth-row behind upper canine — 



(A) Five teeth in tooth-row behind / PIPISTRELLUS "1 j^ 



lower canine . . . . \ pipistrellus / "" ^ 



(B) Six teeth in tooth-row behind / PLECOTUS \ i„. 



lower canine . . . . \ auritus ) ^' ^^ 



3. Six functional teeth in tOOth-rOW behind upper canine — 



(A) Upper /Sw. II. smaller, its tip about 



reaching cingulum oipm. I. : — 



(a) Size larger, greatest length of | ^_ daubentoni . p. 143 



skull about iS mm. ■ ■ j f to 



(B) Size smaller, greatest length of | ^ ^ystacinus . p. i s8 



skull about 13 mm. . . j ^ ^ - 



(B) Upper pm. II. larger, its tip 



reaching well above cingulum 

 of pm. I. : — 



(a) Upper pm II. about equal- V ^^^^^^^^^^. _ . p. 178 



hngpm. I J 



(b) Vpperpm. II. distinctly smaller | ^ iechsteini . . p. 172 



than/w?. I ) 



IL Nasal Cartilages and Upper Incisors \ ^ffjj^QLOPHUS p. 225 



RUDIMENTARY . . • • - / 



1. Greatest length of skull about 24 mm. . R. ferrum-equinum p. 228 



2. Greatest length of skull about 16 mm. . R. hipposideros . p. 250 



