AND BATEACHIANS OF BAEBAET. 105 



as long as, or longer than, that between the humerals. Anterior face of fore limbs 

 with large imbricate scutes, forming four or five longitudinal and five or six transverse 

 series ; a large convex or subconical tubercle on the hind side of the thigh. Carapace 

 of young yellowish or pale olive, each shield spotted and bordered with black ; the 

 black spots more irregular and predominating in the adult ; some specimens uniform 

 brownish or olive ; plastron more or less spotted with black. 



Length of shell 23 centim. 



Common throughout the Tell, from Morocco to Tunisia ; also found on the Algerian 

 Plateaux, and even further south in Tunisia. M. Lataste found it at Palestro, 

 Misserghin (Oran), Aumale, Guyotville (Algiers), Salah-Bey (Constantine), and Bou- 

 Saada, in Algeria ; at Zarzis and the ruins of Utique in Tunisia. It also inhabits 

 South-western Asia. 



For good figures of this tortoise we may refer to Bell's ' Monograph of the Testudi- 

 nata ' (sub nom. T. (jncca), and to Lortet, Arch. Mus. Lyon, iv. 1887, pi. i. 



Old specimens have been taken for the allied T marginata, SchoepfF, s. campamilata, 

 Strauch (by Gervais and Lallemant), the habitat of which appears to be restricted to 

 Greece. 



2. Emys, Dumeril, 1806. 

 Shell depressed. No shields on the head. Alveolar surface of upper jaw without 

 ridges. Digits distinct, webbed. Plastron joined to carapace by ligament, and divided 

 into two movable lobes in the adult. Aquatic and carnivorous. 



1. Emys okbiculaeis, Linnaeus, 1766. 

 Cistudo europcea, Guichenot. — C lutaria, Strauch. 



Carapace with yellowish dots or radiating lines on a dark ground ; head' dark brown 

 or black above, with yellow or pale brown dots, yellow inferiorly, spotted with black. 



Length of shell 19 centim. 



Inhabits Southern and Eastern Europe, Western Asia, and Algeria north of the 

 Atlas. In spite of Guichenot's statement that it is found in all the rivers of Algeria, a 

 statement evidently due to a confusion with Clemmys leprosa, this tortoise is very 

 locally distributed in Algeria, the only specimens examined by M. Lataste having been 

 obtained by Dr. Hagenmiiller near Bona. Lallemant records it from Harrach, Lake 

 Fetzara, and Wed Sebaon. 



Figures : Bonaparte, Faun. Ital. [Emys lutaria), and Lortet, Arcb. Mus. Lyon, iv. 

 1887, pi. vi. 



3. Clemmts, Wagler, 1830. 



Shell depressed. No shields on the head. Alveolar surface of upper jaw ^\ithout 

 ridges. Digits distinct, webbed. Plastroa without hinge, united to carapace by suture. 

 Aquatic and carnivorous. 



