302 MR. G. A. BOULBNGER ON THE 



3. Zamenis rogersi Anders. Ann. & Mag. N. H. (6) xii. 1893, 

 p. 439 ; Bpuleng. Cat. Sn. iii. p. 623. 



N. Egypt. 



4. Zamenis florulentus. 



Coluber floridentus Geoffr. Descr. Eoypte, Kept. p. 146, pi. viii. 

 fig. 2. 



Zamenis florulentus Boaleng. Cat. Sn. i. p. 402. 



Egypt to Somaliland. 



5. Zamenis nummifer. 



Coluber nummifer Reuss, Mas. Senckenb. i. p. 135. 

 Zamenis mommifer Bouleng. t. c. p. 407. 

 N. Egypt, Syria, Cyprus, Asia Minor. 



6. Zamenis algirus. 



Periops algira Jan, Elenco, p. 60. 

 Zamenis algirtos Bouleng. t. c. p. 408. 

 Algeria and Tunisia. 



7. Zamenis hippocrepis. 



Coluber hippocrepis Linn. S. N. i. p. 388. 

 Zamenis hippocrepis Bouleng. t. c. p. 409. 

 Morocco, Algeria, Tunisia, Spain and Portugal, Sardinia. 



8. Zamenis diadema. 



Coluber diadema Sclileg. Pliys. Serp. ii. p. 148. 

 Zamenis diadema Bouleng. t. c. p. 411. 



Algeria, Tunisia, Tripoli, Eoypt, Arabia to Turkestan and 

 :^^. W.India. 



3. Lytorhynchus. 



Peters, Mon, Berl. Ac. 1862, p. 272; Bouleng. Cat. Sn. i. 

 p. 414. 



1. Lytorhynchus diadema. 



Heierodon diadema Duni. & Bibr. Erp. Gen. vii. p. 779. 

 Lytorhynchus diadema Bouleng. t. c. p. 415. 

 Algerian and Tunisian Sahara, Tripoli, Egypt, Nubia, Arabia, 

 Syria., Mesopotamia, Persia. 



4. Coronella. 

 Laur. Syn. Kept. p. 84 ; Bouleng. Cat. Sn. ii. p. 188. 



Two species : — 



Rostral as deep as broad, produced between tbe internasals C. amaliee. 



Rostral much broader than deep, just visible from above O. girondica. 



