Günther's Forest Racer
Dendrophidion brunneum (Günther, 1858)
First described in: Günther, A. Catalogue of Colubrine snakes of the British Museum.
Descriptions from checklists and floras indexed by GBIF
description
PERU: AMAZONAS: Chachapoyas [2335 m; 0 6 ° 13 ' S, 77 ° 51 ’ W], MUSM 3276 *. CAJAMARCA: Asunción [2230 m; 0719 ' S, 78 ° 31 ’ W], KU 221722. Río Zaña Study Site, 1250 – 2400 m elevation [06 ° 51 ' S, 79 ° 06 ' W], ANSP 31772 – 76; FMNH 231773 – 75, 231777, 232577 – 78, 232581 – 82, 232669 – 83; MUSM 17517 *. 35 mi. NW Cajamarca [city], 6000 ft. [1830 m; = the Río Zaña valley on the road between La Florida and Hacienda Taulis; C. Koford field notes in MVZ], MVZ 119329. Cascas [1274 m; 0 7 ° 29 ' S, 78 ° 49 ' W], MUSM 2603 *. 3 km by road W Chiribamba on Llama – Huambos Road (= 7 km W of turnoff to Querocoto), 2650 m [06 ° 26 ' 55 ” S, 79 ° 01 ' 30 ” W; sight record: see Natural History and Behavior]. Pacopampa (along Querocoto – Querocotillo road), 2400 – 2450 m [06 ° 20 ' S, 79 ° 01 ' W], MCZ R- 183594. LA LIBERTAD: Hacienda Llaguen [> 1700 m; 0 7 ° 43 ' S, 78 ° 44 ' W; Koepcke 1961], MUSM 2048 *, 2032 *. PIURA: Immediate vicinity of Ayabaca, 2600 m [04 ° 38 ' S, 79 ° 43 ' W], MUSM-JECadle field number 10349. Morropon [05 ° 12 ' S, 80 ° 00 ' W; 130 m], MUSM 2918 *. Approximately 15 km E Canchaque [approximately 1830 m; 0 5 ° 24 ' S, 79 ° 36 ' W], LSUMZ 32560 – 62. PIURA / TUMBES (
Systematics, natural history, and hemipenial morphology of Dendrophidion brunneum (Günther) (Serpentes: Colubridae), a poorly known snake from the Andes of Ecuador and Peru
description
Description. Characteristics of Dendrophidion brunneum are summarized in Table 1. Because tails are frequently broken, the maximum size was estimated from the individuals with greatest SVL. Linear regressions of tail length on SVL (see Materials and Methods) were: for males, log (tail length) = − 0.413 + 1.104 (log SVL); for females, log (tail length) = − 0.616 + 1.163 (log SVL). The five largest males were 542 – 700 mm SVL, of which three had incomplete tails (all except the largest were ≤ 580 mm SVL). The estimated total length of the largest male (ANSP 31776) is 1235 mm (actual total length 879 + mm). The five largest females were 649 – 796 mm SVL but all of these had incomplete tails (three were> 700 mm SVL). The estimated total length of the largest female (FMNH 232676) is 1369 mm (actual total length 1114 + mm). These are larger than previous size records (Lieb 1988, Kuch & Freire 1993). The tail is 40 – 44 % of total length (67 – 80 % of SVL) in males, 38 – 41 % of total length (61 – 71 % of SVL) in females. Günther (1858: 116) reported measurements of the holotype as 12 inches tail length and 39 inches total length (tail = 31 % of total length), which suggests an incomplete
Systematics, natural history, and hemipenial morphology of Dendrophidion brunneum (Günther) (Serpentes: Colubridae), a poorly known snake from the Andes of Ecuador and Peru
diagnosis
Diagnosis. Dendrophidion brunneum is characterized by 17 midbody scale rows, reducing to 15 (rarely 13) posteriorly; dorsocaudal reduction from eight to six anterior to subcaudal 25; ventrals fewer than 155 in males, fewer than 170 in females; subcaudals fewer than 160. Tail 40 – 44 % of total length (67 – 80 % of SVL) in males, 38 – 41 % of total length (61 – 71 % of SVL) in females; and dorsal coloration usually green to olive (brown or bluish in some specimens) and usually without stripes or crossbars (anterior body, especially the head, often with brighter hues or a different color from the posterior body) (Fig. 1). The everted hemipenis is unique among known hemipenes of Dendrophidion in having a greatly expanded, globose distal region and a very short segment of the hemipenial body proximal to the expanded region (see Hemipenial Morphology of Dendrophidion brunneum). Scale counts of many species of Dendrophidion overlap extensively (Lieb 1988: Table 1) and color patterns are often the most reliable characters for identifications. In D. dendrophis, D. nuchale, and D. vinitor the dorsocaudal reduction from eight to six occurs posterior to subcaudal 25. Of the species in which t
Systematics, natural history, and hemipenial morphology of Dendrophidion brunneum (Günther) (Serpentes: Colubridae), a poorly known snake from the Andes of Ecuador and Peru
In the stacks
Searching the stacks…
Every page naming Dendrophidion brunneum in the Biodiversity Heritage Library →
From the GBIF Backbone Taxonomy and occurrence records (GBIF.org), with Wikipedia and the Source Library. GBIF species 2452611.