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Show 226 MR. G. A. BOULENGER ON THE [Feb. 2, 53. ZAMENIS DIPSAS, Schleg. Snout scarcely projecting, obtuse; eye very large. Bostral broader than deep, just visible from above ; internasals shorter than the praefrontals ; frontal once and a half to once and three-fifths as long as broad, as long as or longer than its distance from the end of the snout, a little shorter than the parietals ; loreal as long as deep or a little longer than deep ; praeocular single or divided, not touching the frontal, with a small subocular below it; two postoculars; temporals 1 + 2 or 2 + 2 ; eight upper labials, fourth and fifth entering the eye ; four or five lower labials in contact with the anterior chin-shields; posterior chin-shields longer than the anterior, and in contact anteriorly. Scales smooth, in 13 rows. Ventrals 187-197; anal entire; subcaudals 102- 139. Adult blackish brown or black; the anterior part of the body pale brown or yellow on the sides and yellowish white beneath, with vertical black bars on the sides; upper lip yellow. Voung pale yellowish brown above, with dark olive spots or cross-bands, or with two blackish dorsal stripes, uniform olive-brown posteriorly ; a bright yellow nuchal collar, sometimes interrupted in the middle. Total length 2 metres; tail 55 centim. A n adult male and a young specimen were obtained at Tomohon by the Drs. Sarasin; also two young specimens at Burukan (Minahassa). Manado (Bleeker, Bruljn). 54. COLUBER JANSENI, Blkr. Five specimens ; Kema, Tomohon, Kottabangu, Mapane, Luhu. Manado, Macassar (Meyer). Manado (Bruljn). Body compressed. Snout subacuminate, elongate, obliquely truncate and projecting. Bostral broader than deep, just visible from above; internasals as long as broad, a little shorter than the praefrontals ; frontal once and one-fourth to once and a half as long as broad, as long as or a little shorter than its distance from the end of the snout, a little shorter than the parietals ; loreal at least twice as long as deep; one large praeocular, in contact with the frontal; two postoculars; temporals 1 + 2 or 2 + 3; nine or ten upper labials, fifth to seventh entering the eye; five or six lower labials in contact with the anterior chin-shields, which are much longer than the posterior. Scales smooth or faintly keeled, in 23 or 25 rows. Ventrals angulate laterally, 247-256; anal divided; subcaudals 133-140. Olive or yellowish brown above, some or all of the scales black-edged, entirely black posteriorly and on the tail; back of the bead sometimes black; a black lateral stripe may be present. Young pale olive anteriorly, with or without small blackish markings, greyish olive posteriorly. Total length 1990 millim.; tail 450. The Drs. Sarasin have observed this snake to inflate its neck when irritated. |