446 AMPHISBJINID^. 



millim. 



Length to vent 210 



Tail 21 



Diameter of body 9 



"West Indies. 



a. Ad. Porto Bello, W. Indies. Capt. Austin [P.]. 



17. AmpMs"b8ena cubana. 



Ampliis'baena cubana, Peters, Mon. Bed. Ac. 1878, p. 780, pi. — . 

 fig. 4 ; Strauch, Mel. Biol. Ac. St. Petersb. xi. p. 411. 



Judging from the figure and description, I feel inclined to regard 

 this so-called species as an A. creca in which the ocular has 

 fused with the second labial ; although two specimens are known to 

 present the same scutellation, it is not impossible that this is only 

 a case of anomaly. Another character put forward for the separation 

 of the two forms, viz. the presence of eight anal segments in A. 

 cubana, instead of six, as in A. cceca, does not hold good, since the 

 specimen described above, and in which the ocular is distinct from 

 the labial, has eight. 



Cuba. 



18. AmpMsbsena violacea. 



Cynisca? violacea. Gray, Cat. Sh. Rept. ii. p. 36. 

 Ampbisbsena violacea, Peters, Mon. Berl. Ac. 18-54, p. 0:20, and 1862, 

 p. 26, and Reise n. Mossamb. iii. p. 85, pi. xiii. fig. 2 ; Strauch, 

 Mel. Biol. Ac. St. Petersb. xi. p. 411. 



Pra^maxillary teeth 7, maxillaries 4-4, mandibulars 7-7. Snout 

 rounded, prominent. Rostral moderate, triangular ; nasals forming 

 a suture behind the rostral ; a pair of proefrontals, a pair of frontals 

 and a pair of narrow occipitals ; the suture between the frontals is 

 the longest, then come, in respect to length, the prajfrontal suture, 

 the parietal, and the nasal ; a large temporal, between the frontal 

 and the fourth labial ; four upper labials, anterior smallest, posterior 

 largest ; ocular rather large, eye distinct ; no infraocular, the ocular 

 forming a suture with the second and thii'd labials ; mental trape- 

 zoid with concave lateral borders, followed by a pentagonal or hep- 

 tagonal chin -shield ; three lower labials, second very large; two 

 large cbin-shields on each side. One hundred and eighty to one 

 hundred and eighty-eight annuli on the body and fifty-six to fifty- 

 nine on the tail ; an annulus contains eighteen or twenty dorsal, 

 and sixteen or eighteen ventral segments ; the two median ventral 

 segments much broader than the others. Lateral line distinct. 

 Six anal segments and four praeanal pores. Dark purple above, 

 lighter beneath. 



millim. 



Length to vent 153 



Tail 45 



Diameter of body 5 



Inhambane, S.E. Africa. 



