Miscellaneous. 247 



superior incisor is elevated and terminated by a single point ; the 

 second, lying outwards, is low and projects but little from the gum. 



The ears are rouiulcd quadrangular, entire, margined, clothed 

 with sliort bail's within ; the outer margin terminates sharply a 

 little bcliind the angle of the mouth, and bears there a distinct lobe. 

 The auricle is bent iuAvards, rounded at the apex, broadest below the 

 midille, and furnished with a small notch at the base. The metacai^pal 

 joints of fingers 3 to 5 differ but little from each other in length. 

 The wing-membranes are thin, naked, and adherent as far as the 

 roots of the toes. The iuterfemoral membrane encloses the tail as 

 far as its apex, and is spai'ingly furnished with hair both above and 

 below to the end of the fii'st tliird. The spur bears a distinct mem- 

 branous lobe. The penis of the male is provided with a bone. 



Pale brown, the hairs of the back rather darker at the base ; 

 wing-membrane dark brown. 



Measurements of an adult male. 



metre. 



Total length 0-092 



Head O-OKi 



Entire elevation of ear O-Olo 



Anterior margin of ear 0-010 



Breadth of ear 0-0125 



Length of aiiricle 0-007 



Length of tail 0-042 



Humerus 0-024 



Forearm 0-0365 



Length of fingers : — 



1st metacarpal, 0-0025; 1st phal. 000.3 ; 2nd ph. 00025 00O7.> 



2nd „ 0034 ; „ 00004 0038 



3rd „ 0035 ; „ 0015; 2nd ph. 00185; Cart. 0005 0070 



4th „ 0034 ; „ 0011; „ 0-0105 „ 0002 0067 



5th „ 0033 ; „ 0010; „ OOOG „ 00015 0-049 



Thigh 0-018 



Leg 0-018 



Foot 0007 



Spur 0-017 



Monatsb. Berl. Akad. Wiss. Dec. 7, 1868, p. 626. 



Niidibraiichs in Fn's7i Water. 



Mr. Kent described, at the last meeting of the Zoological Society, 

 a new Nudibranch under the name of Emhletonia Grai/ii, discovered 

 in the Victoria Docks at llothcrhithe. When I mentioned the cir- 

 cumstance to Dr. Mobius at Kiel, he observed : — 



" It was very interesting to me to find that a mollusk of tho 

 family yEolidida; had been discovered in brackish water near London 

 Bridge. In the Baltic i>cii, Emblctonia 2^(fll'da extends as far a> 

 East Prussia, near Konigsberg, where the water has only 7 of sail 

 in 1000. In like manner, Protolimax caj^itatus {^Limapontia ultp-a) 



