Letheobia praeocularis (STEJNEGER, 1894)
Can you confirm these amateur observations of Letheobia praeocularis?
Letheobia praeocularis
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| Higher Taxa | Typhlopidae (Afrotyphlopinae), Typhlopoidea, Serpentes, Squamata (snakes) |
| Subspecies | |
| Common Names | E: Léopoldville Beaked Snake |
| Synonym | Typhlops praeocularis STEJNEGER 1894: 709 Typhlops praeocularis lundensis LAURENT 1964: 90 Tphlops praeocularis praeocularis — LAURENT 1964 Rhinotyphlops praeocularis — ROUX-ESTÈVE 1974: 221 Rhinotyphlops praeocularis — MCDIARMID, CAMPBELL & TOURÉ 1999: 83 Letheobia praeocularis — BROADLEY & WALLACH 2007 Letheobia praeocularis — HEDGES et al. 2014 Letheobia praeocularis — WALLACH et al. 2014: 381 |
| Distribution | Zaire (Leopoldville), Cameroon, Angola, Nigeria, W Democratic Republic of the Congo (= Zaire), Congo (Brazzaville), possibly Cameroon (because it occurs in Nigeria 50 km from the border [HR 28: 160]). Type locality: "Leopoldville, or Stanley Pool, Congo Free State" [Kinshasa Province, Zaire] |
| Reproduction | oviparous |
| Types | Holotype: USNM 20799 Types: MD (Museu Dundo) [lundensis] |
| Diagnosis | Original diagnosis: “A preocular, not in contact with supralabials; no suboculars; ocular in contact with nasal below preocular, reaching lip behind second supralabial; snout with sharp horizontal edge.” (Stejneger 1894: 709) Description. Snout very prominent and pointed, but not hooked, with sharp cutting edge; nostrils inferior, situated just beneath the cutting edge, between two large nasals almost at the point where the internasal suture joins the rostral; rostral very large, about two-thirds the width of the head, the portion visible from below wider than long; labial border of rostral concave, without the usual central prolongation backwards; anterior nasal half-moon shaped, the outer edge nearly parallel with the rostral, the nasal cleft proceeding from the lower border of the rostral, ending at the rostral just below the cutting edge; posterior nasal at the cutting edge as wide as the preocular and ocular together, becoming narrower above and below, in contact above with prefrontal and supraocular, below with second supralabial and ocular; preocular about as wide as ocular, below widely separated from the supralabials by the posterior nasal and ocular; ocular rather narrow, below anteriorly in contact with posterior nasal, and second supralabial reaching the lip behind the latter; eyes indistinguishable; first supralabial exceedingly small, forming the edge of the lip below the auterior nasal, anteriorly receding within the mouth behind the rostral, being separated from the corresponding labial on the other side by a small squarish scale behind the rostral; second supralabial rather larger, in contact with first supralabial, anterior and posterior nasal and ocular, its upper posterior corer wedged in between the two last mentioned shields; a long and narrow shield behind the lower posterior edge of the ocular represents what is ordinarily the fourth supralabial, its anterior point, however, barely reaching the lip; prefrontal and frontal subequal, wider than long ; subocular and parietal subequal, wider than long, somewhat wider than frontal: one mental; two sublabials; diameter of body at the middle 67 times in the total length, the body growing thicker posteriorly; tail very short, wider than long, ending in a short spine; 24 to 26 scales round the middle of the body. Uniform, pale brownish gray, scarcely paler below. Total length 340 millimeters.” (Stejneger 1894: 709) |
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