This review describes the formation, structure, and function of bony compartments in antlers,
horns, ossicones, osteoderm and the os penis/os clitoris (collectively referred to herein as …

Riama is the most speciose genus of the Neotropical lizard family Gymnophthalmidae. Its
more than 30 montane species occur throughout the northern Andes, the Cordillera de la …

Male genitalia show considerable morphological variation among animals with internal
fertilization and exhibit a high level of evolvability in lizards. Studies have suggested that …

We describe a new watersnake of the genus Helicops based on a single specimen found in
the northern limit of the Brazilian Pantanal. Immediately after collection, the unique features …

Hemipenial morphology has provided useful characters to improve species identification
and phylogenetic relationships in squamates. Here we provide hemipenial description and …

We describe a new species of watersnake of the genus Helicops from the Tocantins-
Araguaia River Basin based on characters of coloration and hemipenial morphology, also …

The rough teiid or water cork lizard (Echinosaura horrida) is a small reptile from Colombia
and Ecuador placed in a genus that contains eight species and well‐known phylogenetic …

In the present study, we investigated and documented the morphology of the male
copulatory organs (hemipenes) in fifteen wide‐ranging snake species. The species …

The Squamata (lizards and snakes) is the only clade among vertebrates with hemipenes, a
pair of male intromittent genital organs. Hemipenes are remarkably variable between …

The representatives of the genus Ablepharus Fitzinger, 1824 have not been studied in detail
from a morphological and taxonomic perspective. The morphology of hemipenes of 14 taxa …