3. AMPHISBEN A. 449 
24. Amphisbzna liberiensis. 
Ophioproctes liberiensis, Bouleng. Bull. Soc. Zool. France, 1878, 
p. 301. 
Amphisbeena liberiensis, Strauch, Mél. Biol. Ac. St. Petersb. xi. 
p. 890, 
Snout rounded, prominent. Rostral small, triangular; nasals, 
prefrontals and anterior labials united into a large shield forming 
a long suture with its fellow and covering the whole of the snout ; 
ocular small, eye hardly distinguishable ; a pair of large frontals ; 
a pair of small parietals; a large labial, posterior to the vertical of 
the eye, and two or three temporals, upper largest; mental quad- 
rangular, twice as long as broad; three lower labials, anterior large, 
the two otherssmall. Two hundred annuli on the body and twenty- 
eight on the tail; an annulus contains twenty-four segments, the 
dorsals longer than broad, the two median ventrals nearly three 
times as broad as long. Lateral line distinct. Anal segments two, 
very large. Hight preanal pores. Brown, rather lighter inferiorly. 
Length to vent 135 millim., tail 18 millim. 
Liberia. 
25, Amphisbena fenestrata. 
Sarea ceca, part., Gray, Cut. Sh. Rept. ii. p. 38. 
Sarea ? fenestrata, Gray, l. c. 
Diphalus fenestratus, Cope, Proc. Ac. Philad. 1861, p. 76, and Proce. 
Amer. Phil. Soc. xi. 1869, p. 164. 
Amphisbeena antillensis, Ftemh. § Liitk. Vidensk. Meddel. 1862, 
. 224, 
E fenestrata, Strauch, Mél. Biol. Ac. St. Petersb. xi. p. 415. 
Premaxillary teeth 5 ; maxillaries 4-4 ; mandibulars 7—7, Snout 
prominent, pointed. Rostral moderately large, prolonged pos- 
teriorly, separating the nasals, which are not larger than the ocular ; 
a pair of very large prefrontals, twice as long as broad, followed by 
a pair of smaller posterior frontals; eye distinct through the ocular, 
which forms a suture with the second and third labials; no pra- 
ocular; two temporals, upper largest; three upper labials, first 
smallest, second largest ; mental quadrangular, followed by .a larger 
octagonal chin-shield ; three lower labials, first very small, second 
very large; a small chin-shield on each side behind the second 
lower labial. Two hundred and forty-two to two hundred and forty- 
seven annuli on the body and fifteen or sixteen on the tail; on the 
middle of the body, an annulus contains twenty-six or twenty- 
eight segments, twelve or fourteen above and fourteen below 
the lateral lines; the dorsal and lateral segments equilateral or 
slightly longer than broad, the two median ventrals distinctly broader 
than long. Lateral line distinct ; a feeble vertebralline. Anal seg- 
ments four or six; preanal pores four. Flesh-coloured, each seg- 
ment above and on the sides marked with a central rectangular 
brown spot. 
You, II. 2¢ 
