AND BATEACHIANS OY BAEBAEY. 127 



Three species in Barbary: — 



Collar distinguistable 1. blanci. 



No trace of a collar; ventral plates of the mediaa and outer series narrower 



than the others 2. microdactijlus. 



No trace of a collar ; ventral plates subequal .3. algirus. 



The fourth and type species of this genus, P. MsjMniciis, Fitz., inhabits the Spanish 

 Peninsula and the south of France. It has been recorded from Tangier in the ' List of 

 Animals living in the Gardens of the Zoological Society of London,' no doubt through 

 confusion with P. microdacttjlus ; and from Oran by F. Miiller (Verh. nat. Ges. Basel, vi. 

 1878, p. 625), through confusion with P. hlanci. 



1. PsAMMODEOMUS BLANCI, Lataste, 1880. (Plate XIV. fig. 2.) 



A more or less distinct gular fold, connecting the ears ; collar distinguishable. 

 Ventrals broader than long, the median and outer series narrower than the two others. 

 Digits inferiorly with a double series of more or less strongly or obtusely keeled 

 tubercles. Olive or bronzy brown above, with two yellowish streaks along each side, 

 bordered with small black spots ; the upper streak commences from the upper border 

 of the temple, the lower commences on the upper lip and passes through the ear ; 

 sometimes a light vertebral band ; lower parts uniform yellowish. 



The suture between the rostral and the first labial usually falls below the anterior 

 border of the nostril. 28 to 32 scales round the middle of the body, ventrals included. 

 10 to 12 femoral pores on each side. 



From snout to vent 40 millim., tail 61. 



This small Lizard is easily mistaken for the young of the much commoner P. algirus, 

 which occurs together with it in many localities. AVhen examined, it is, however, 

 found to differ in the gular fold, the collar, and the arrangement and shape of the 

 ventral plates, which much resemble the same in true Lizards, whilst those of P. algirus 

 remind one to a certain extent of the Scinks. 



Psammodromus blanci is as yet only known from Algeria, but is on record from 

 the three provinces ; it does not occur south of the Atlas. M. Lataste found it not 

 uncommon in and near Algiers and near Aumale, very common at Lambesa, and between 

 Tafrant and Meriana, and also obtained it at Youkouss, near Tebesa, and at Oran; his 

 collection contains specimens from Batna, received from M. Henri Martin ; and J. v. 

 Fischer records it from Biidah (Prov. Algiers) and Rouached (Prov. Constantine). 



2. Psammodromus microdactylus, Boettger, 1881. 



No gular fold ; no trace of a collar. Ventrals broader than long, the median and 

 outer series narrower than the two others. Digits beneath with a double series of 

 strongly but obtusely keeled tubercles. Upper caudal scales more strongly keeled than 

 the dorsals. Olive or pea-green above, with or without brown or black spots, which 

 may be mixed with white ; a more or less distinct brown or reddish lateral band ; lower 



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