1895.] Da. J. DE BEDBIAGA OS THE PTRENEAN JfEWT. 155 



of the belly in the male, or orange without or with very few blackish 

 round spots. Lower edge of the tail yellowish in the male, orange 

 or reddish in the female. 



Measurements (typical form). 



6. 2. 



inillim. niillim. 



Total length 113 128 



Length of head 18 16 



Breadth of head 13 11 



From end of snout to anus 61 61 



Length of tail, 52 67 



Depth of tail 7 6 



Fore limb 18 17| 



Hind limb 19 18 



Sexual Characters. 



Male. — Tail shorter than head and body. Cloacal lips grey, 

 strongly swollen and forming a subglobulous prominence ; the 

 longitudinal cleft extending over its posterior part '. Belly with a 

 narrow yellow, rarely orange median zone, generally spotted with 

 black or dark grey, especially on the hinder portion. 



Female. — Tail as long or longer than head and body. Anal 

 prominence orange, conical or pear-shaped, much produced, 

 directed backwards, with a short longitudinal or rather vertical 

 cleft on the summit of the cone, looking entirely backwards. 

 Belly with a wide orange or reddish median area, which is generally 

 immaculate. 



Osteological Characters. 



The two series of palatine teeth commence on a line with the 

 choanse (Plate VI. fig. 3). 



The fronto-temporal arch is bony (fig. 2). 



The quadrate projects sidewards and looks at the same time 

 rather backwards than forwards. 



The crista ossis vomero-palatini is hardly developed. 



The septum nasi is formed by a single cartilaginous plate. [In 

 all European newts with the exception of Molye aspera and M. 

 waltli there is an almost entirely osseous and double septum nasi 

 with but a small terminal cartilaginous portion, which separates it 

 from the cartilaginous ethmoidal plate. It is formed by the well- 

 developed ascending process of the premaxillary and the crests of the 

 vomero-palatines which rise vertically. The almost wholly unossified 

 septum nasi of M. aspera resembles that of M. lualtli. It is merely 

 a single, well-developed, thickisb, cartilaginous wall, which extends 

 beyond the opening between the vomero-palatines for the duct of 

 the so-called " intermaxillary gland " and keeps the nasal cavities 



1 The anal prominence appears sometimes in the males of the rugous variety 

 very obtusely conical in winter. 



