144 MR. G. A. BOULENGEE ON THE REPTILES 



Head elongate ; one or more suboculars below the praeoeular 3. Zamknis. 



b. Scales strongly keeled 4. Tkopidonotus. 



B. Opisthoglypha. Grooved fangs behind the series of maxillary teeth. 



Suspected, or poisonous to a slight degree. 



a. Some o£ the anterior maxillary teeth enlarged and separated from 



those following by an interspace. 



Head short ; eyes rather small, pupil vertically subelliptic 5. Macroprotodon. 



Head elongate; eye large, with round pupil 6. Psammophis. 



b. Only the grooved maxillary teeth enlarged 7. Ccelopeltis. 



C. Proteroglypha. Grooved fangs anteriorly. Poisonous. 



Neck dilatable ; no lorcal shield 8. Naia. 



1. CoRONELLA, Lauren ti, 1768. 



Maxilliiry teeth 12 to 14, increasing in size posteriorly; mandibular teeth subequal. 

 Head short, scarcely distinct from neck ; eye rather small, with round pupil. Body 

 cylindrical; scales smooth, in 19 to 32 rows, with apical pits; ventrals rounded; tail 

 moderate ; subcaudals in two rows. 



Two species in Barbary. 



1. CoEONELLA AMALi^, Boettger, 1881. (Plate XVIII. fig. 1.) 



Snout prominent ; rostral as deep as broad, produced posteriorly between the inter- 

 nasals, the portion seen from above about half as long as its distance from the frontal ; 

 suture between the internasals one-third the length of that between the prsefrontals ; 

 frontal a little longer tlian its distance from the end of the snout, a little shorter than 

 the parietals ; loreal longer than deep; one prse- and two postoculars ; temporals 

 2 + 3; eight upper labials, fourth and fifth entering the eye; four lower labials in 

 contact with the anterior chin-shields ; posterior chin-shields three fourths the length of 

 the anterior. Scales in 21 rows. Ventrals 19l'-193 ; anal divided; subcaudals 63-64. 

 Grey-brown above, with reddish-brown spots and four rather indistinct dark longi- 

 tudinal bands ; vertebral region light ; a pair of elongate dark brown .spots on the 

 nape ; a black streak on each side of the head, from the nostril, through the eye, to 

 the angle of the mouth ; a dark band between the eye crossing the preefrontals ; a 

 black line below the eye, on the suture between the fourth and fifth upper labials. 

 Lower surfaces coral-red, with quadrangular black spots. 



Total length 390 milliin., tail 72. 



This species is intermediate between C. austriaca and C. girondica, agreeing with the 

 former in the size and sliape of the rostral shield, with the latter in all other respects. 



The two specimens from which the above description is taken were obtained by 

 M. H. Vaucher in the Benider hills, near Tangier. The type specimen of Bhinechis 

 amalice, Boettg., is from between Tetuan and Tangier. M. Lataste received a single 

 specimen from Bona, through Dr. Hagenmiiller. 



