Leptodeira larcorum SCHMIDT & WALKER, 1943
Can you confirm these amateur observations of Leptodeira larcorum?
|Higher Taxa||Colubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)|
|Synonym||Leptodeira larcorum SCHMIDT & WALKER 1943: 311|
Leptodeira rhombifera larcorum — SHREVE 1947
Leptodeira septentrionalis larcorum — DUELLMAN 1958
Leptodeira septentrionalis larcorum — PETERS 1960
Leptodeira septentrionalis larcorum — KOCH et al. 2018: 71
Leptodeira larcorum — BARRIO-AMORÓS 2019
Leptodeira larcorum — TORRES-CARVAJAL et al. 2020
|Distribution||Peru (Cajamarca, Libertad)|
Type locality: Chiclin, Libertad, Peru.
|Types||Holotype: FMNH 34302|
|Diagnosis||Diagnosis: A Leptodeira resembling L. rhombifera of Central America and northwestern South America in having vertebral and paravertebral scale rows little if at all enlarged, and thus differing from L. annulata annulata; differing from rhombifera in having a higher number of ventrals, 175-184 versus 158-178, and caudals, 78-91 versus 64-84, and in the strong tendency for the dorsal spots to fuse into a zigzag line (in the latter respect resembling annulata annulata; Dunn, 1936, p. 691; from SCHMIDT & WALKER 1943: 311).|
Description of type. A snake with large head, distinct from the neck, with a large eye; body slightly compressed. Rostral much broader than high, scarcely visible from above; internasals shorter than the prefrontals; frontal one-third longer than broad, as long as its distance from the end of the snout, shorter than the parietals;
nasal divided; loreal slightly longer than high; a large preocular, in contact with the frontal; a small inferior preocular formed by division of the third labial; 2 postoculars; temporals 1-2, with a small additional anterior temporal cut off from the seventh labial; upper labials 8, the fourth and fifth entering the eye; lower labials 10, six in contact with the chin shields; posterior chin shields slightly longer than anterior; dorsal scales smooth, simplified formula 19-21-15; ventrals 184, anal divided, caudals 91.
Head grayish brown with a butterfly-shaped darker marking on the parietals and occiput, and a dark band from snout to angle of mouth; grayish brown above, with alternating paravertebral blotches that tend to fuse into a zigzag dorsal band; a lateral row of alternating spots, with still smaller spots on the first and second scale rows; lateral spots disappearing on the tail; uniform yellow beneath, with faint brown markings on the chin and lower labials (SCHMIDT & WALKER 1943: 311)
|Comment||Subspecies: This species has been considered as a synonym or subspecies of Leptodeira septentrionalis, but was revalidated by BARRIO-AMORÓS 2019.|
Similar species: Leptodeira septentrionalis, Leptodeira ornata; Almendáriz & Carr (2012) reported L. larcorum (indentified as L. septentrionalis larcorum) from Machalilla National Park in Manabí Province, Ecuador; however, all specimens from this area included in the phylogeny of Torers-Carvajal et al. 2020 belong to L. ornata.