100 [June, 



Euprepis Harlani, nob. 



Syn. Plestiodon Harlani, Proceed. Acad. Nat. Sc, vol. ii. p. 170. 



Boa Liberiensis, nob. Abdom. scut. 237, subcaud. plates single, 53 50 ; Ion 

 gitudinal rows of scales. 

 Syn. Python Liberiensis, Proceed. Acad. Nat. Sc. vol. ii. p. 249. 



Dipsas Blandingii, Hall., Proceed. Acad. Nat. Sc, vol. ii. p. 170. 



Anterior teeth of lower jaw much larger than the others. Two teeth, one on 

 each side in posterior part of upper maxilla provided, each with a sheath, and 

 channelled anteriorly ; four rows of teeth in the upper jaw, two in the lower. 

 Seventeen rows of scales. Two anterior oculars, two posterior ; a loral ; nostrils 

 between two plates, occipital large. Abdom. scuta 273. Subcaud. 131. Length 

 of head, 1 inch 5 lines ; of head and body 4 feet ; of tail 1 foot (Fr.) 2h inches. 

 Schlegel remarks that the mode of dentition in Dipsas cynodon is unique in the 

 genus, having one or more teeth much longer'than the rest at the posterior part 

 of the upper maxilla, others equally longer being found at the anterior extremity 

 of the inferior maxilla and of the palatal bone. It will be observed that a simi- 

 lar arrangement exists in Dipsas Blandingii, although the animals differ greatly 

 from each other. Triglophodon ? Dumeril. Prodromus, class, des Ophid. 



Psammophis Phillipsii, nob. 



Syn. Coluber Phillipsii, Proceed. Acad. Nat. Sc, vol. ii. p. 169. 



A very well characterized species of Psammophis. Jaws very dilatable, 

 several teeth in the anterior part of the lower jaw longer than the others ; in the 

 upper maxilla on each side two long teeth posteriorly, and two near the middle; 

 teeth unequal ; four first followed apparently by an interval, then the two ante- 

 rior long ones ; scales lanceolate, smooth, intermediate ones more narrow. 



Psammophis Phillipsii differs greatly from Psammophis moniliger of the Cape. 

 The two longitudinal rows of black spots are wanting in Phillipsii, and the 

 latter is a much larger animal ; 15 rows of scales. 



CORONELLA TRIANGULARIS, nob. 



Syn. Col. leevis, Proceed. Acad. Nat. Sc, vol. ii. p. 118. 



17 rows of smooth scales, 21 in Coronella laevis. This animal has a general 

 resemblance to the Coronella laevis, (pi. 12, Amphibia, Fauna Pontica) but the 

 markings are very different, as is also the number of rows of scales. The tail 

 is also longer. It may be considered as the representative of the Coronella laevis 

 in Western Africa. 



Leptophis smaragdina, Boie. 



Sy?i. Dendrophis smaragdina, Schlegel. Leptophis gracilis, Hall. Proc 

 Acad. Nat. Sci., Vol. ii, p. 60. Fifteen rows of strongly carinated scales; an- 

 terior frontals rather longer than the posterior ; nostrils between two plates; 

 one long and narrow loral on each side; one ant-orbitar, two posterior orbitars; 

 eight superior labials on the right side, nine on the left ; inferior margin of 

 orbit formed by the 4th and 5th on the right, and by the 5th and 6th on the 

 left side of the head ; posterior teeth not channelled. Since the above was 

 read, we have received Vol. vii. part 1, of the Herpetologie generale, ou histoire 

 naturelle complete des reptiles, par M. Dumeril, in which I observe that this 

 animal has been placed in the genus Leptophis by that eminent herpetologist. 

 This genus, as characterized by him, includes serpents with scales, sometimes 

 carinated and sometimes smooth, a conclusion which we ourselves had also 

 arrived at the carination of the scales was added by Wagler. Proc Acad. 

 Nat. Sci., Dec, 1852, p. 203. 



Leptophis viridis Proc. Acad. Nat. Sci., Vol. ii., p. 172. This is the 

 young of Dinophis Hammondii. Journal Acad. Nat. Sci., Vol. ii., New 

 Series, Part iv., p. 301, pi. 29. 



Dryophis Kirtlandi, nob. 



Syn. Leptophis Kirtlandi, Proc. Acad. Nat. Sci., Vol. ii., p. 62. Length of 

 largest specimen 4 feet 2 inches; of tail, 1 foot 7 inches; scales carinated. In 

 the posterior part of the upper jaw, on each side, is a tooth much longer than 



