Apurímac Woodland Racer

description

Coloration of juveniles in life: The holotype had black crossbands, and the interspaces are brown. The venter was light-gray and the head brown with black marks (Lehr et al. 2004). Hemipenial morphology (n = 1) (Fig. 24): Hemipenis single, subcylindrical, not capitate. Sulcus spermaticus single and centrolinear. Lobe with just less than half of the hemipenis length, with papillate calyces (5 – 10 triangular papillae per calyx). Proximally, the calyces are gradually replaced by spinulate flounces and spines. Body covered by spines arranged in more or less transverse rows (about 60 – 70 spines in total). Walls of the sulcus spermaticus ornamented at least in the lobular region by jagged papillae and some spinules. These walls are also bordered on both sides by a longitudinal row of eight spines that tend to increase in size toward the proximal region. A hook is present at the end of each of row bordering the sulcus; the right hook is located more proximally than the left. Neither spines nor spinules occur between the left hook and the sulcus spermaticus. There are two lateral spines larger than the hooks left of the sulcus. The asulcate face of the hemipenis is formed by spines arran

Taxonomic revision of Drymoluber Amaral, 1930 (Serpentes: Colubridae)

diagnosis

Diagnosis: Drymoluber apurimacensis is distinguished from D. brazili and D. dichrous by the following combination of characters: a) 13 - 13 - 13 dorsal scale rows without apical pits; b) 158 – 164 ventrals in males, 166 – 182 in females; c) 84 – 93 subcaudals in males, 87 – 91 in females; d) 14 – 16 maxillary teeth. Comparisons: Drymoluber brazili has 17 - 17 - 15 dorsal scales rows, and D. dichrous has 15 - 15 - 15. Apical pits are present in D. brazili and D. dichrous. Drymoluber brazili has 182 – 200 ventrals in males and 185 – 202 in females, 109 – 127 subcaudals in males and 109 – 126 in females. Drymoluber dichrous is not distinguishable from D. apurimacensis based on ventrals and subcaudals counts, having 157 – 173 ventrals in males and 160 – 180 in females, 87 – 110 subcaudals in males and 86 – 109 in females. Drymoluber brazili has 19 – 15 maxillary teeth, and D. dichrous has 19 – 16. The only known juvenile of Drymoluber apurimacensis (holotype) has dark crossbands 1 – 2 scales wide, and pale interspaces 2 – 3 scales wide. Juveniles of D. brazili have dark crossbands 2 – 6 scales wide (mean 3.6) and pale interspaces 0.5 – 5 scales wide (mean 1.6). Juveniles of D. dichrous

Taxonomic revision of Drymoluber Amaral, 1930 (Serpentes: Colubridae)

materials_examined

Holotype: Museu de Historia Natural Universidad Nacional Mayor de San Marcos, MHNSM 20672, juvenile female, SVL 206 mm, TL 73 mm, collected by P. Hocking on 15 January 2001, in Abancay (- 13.64, - 72.88), Abancay Province, Apurimác Department, Peru, 2500 m above sea level (Lehr et al. 2004). Specimen examined by photographs (Fig. 22). Paratypes: Field Museum of Natural History, FMNH 81542, male, SVL 460 mm, TL 192 mm, collected by C. Kalinowski in September 1953 in Hacienda Palmira (- 13.65, - 73.38), Huancarama district, Andahuaylas Province, Apurimác Department, Peru, 3300 m above sea level (specimen examined by the senior author; Fig. 23 A); Museum für Tierkunde, Dresden, MTKD 44669, adult female, SVL 653 mm, TL 253 mm, killed by a local farmer in May 2002, in Cconoc (- 13.06, - 72.64), Abancay Province, Apurimác Department, Peru, 1925 m above sea level (Lehr et al. 2004) (specimen examined by photographs; Fig. 23 B); MHNSM 18647, female, SVL 670 mm, TL 274 mm (Lehr et al. 2004; not examined), MTKD 45192, male, SVL 480 mm, TL 165 mm (Lehr et al. 2004; examined by photographs; Fig. 23 C), MTKD 45193, female, without head, TL 216 mm (Lehr et al. 2004; examined by photographs; Fig.

Taxonomic revision of Drymoluber Amaral, 1930 (Serpentes: Colubridae)