. Zoology of Egypt. 8 4&5 1 2 +4E. 1+3 1 1 M 2 1030 195 173 1/1 55 17 8 4&5 1 L. 2E. 3 ++4 1 1 Durrur. 2 487 129 176 1/1 73 17 8 4&5 1 2 ++2 1 1 Hadramut. 6 480 130 170 1/1 63 17 8 4&5 1 2 ++2 1 1 2 610 139 176 1/1 53 17 8 4&5 1 3—3 2 + 3 1 1 Aden. 2 702 154 157 1/1 55 17 8 4&5 1 2 2 2 + 4 ? 9 Lower Egypt. 2 653 117 166 1/1 52 17 8 4&5 1 L. C. 2—2 ++3 1 1 „ 2 671 115 159 1/1 48 17 8 4&5 1 1 1 Duirat, Tunisia. 663 121 161 1/1 62 17 1 1 1 „ „ 2 172 1/1 64 17 Maskat. 2 168 1/1 52 17 Buskire. Hgr
. Zoology of Egypt. 8 4&5 1 2 +4E. 1+3 1 1 M 2 1030 195 173 1/1 55 17 8 4&5 1 L. 2E. 3 ++4 1 1 Durrur. 2 487 129 176 1/1 73 17 8 4&5 1 2 ++2 1 1 Hadramut. 6 480 130 170 1/1 63 17 8 4&5 1 2 ++2 1 1 2 610 139 176 1/1 53 17 8 4&5 1 3—3 2 + 3 1 1 Aden. 2 702 154 157 1/1 55 17 8 4&5 1 2 2 2 + 4 ? 9 Lower Egypt. 2 653 117 166 1/1 52 17 8 4&5 1 L. C. 2—2 ++3 1 1 „ 2 671 115 159 1/1 48 17 8 4&5 1 1 1 Duirat, Tunisia. 663 121 161 1/1 62 17 1 1 1 „ „ 2 172 1/1 64 17 Maskat. 2 168 1/1 52 17 Buskire. Hgr. 176 1/1 59 17 Nubia. Iii the ninth specimen in the foregoing tahle, five of the ventrals behind the26th of the series are divided like subcaudals. In the umbilical region of snakes atendency to division of the plates is rarely present, but complete division of the ventralsin the mesial line so far anteriorly is an exceptional occurrence and worthy of record. 1 1 If. s «! 3 m Q o a O u % O tu, PSAMMOPHIS SCHOKAKf. 295 PSAMMOPHIS. Psammophis, Boie, Isis, 1827, p. 521. Body elongate and cylindrical; tail long and tapered. Head distinct from the neck ;snout moderately long; loreal region more or less concave ; nostril between two orthree plates (rarely a semidivided shield); frontal narrow and rather elongate; lorealelongate; pupil round. Dorsal scales smooth, with apical pits, in 11 to 19 more orless oblique rows; ventrals rounded; anal divided or single. Maxillary teeth in threegroups, those of the anterior group, 3 or 4 in number, separated by an interspacefrom one or two long fang-like teeth, followed by another interspace, the last groupterminating in one or two long, strong, grooved fangs placed below the posterior borderof the eye; mandibular teeth much enlarged anteriorly, followed by a long line ofmuch smaller teeth, gradually diminishing in size posteriorly. Psammophis schokari, Forskal. (Plates XLI. & XLII.) Psammophis schokari, Blgr.
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishe, booksubjectzoology
