Predation in nature by a scorpion-hunter, Stenorrhina freminvillei (Serpentes, Colubridae)

On the identity of Chironius flavolineatus (Serpentes: Colubridae).

The snake genus Chironius Fitzinger, 1826 is endemic to the Neotropical region, occurring from Honduras to Uruguay and northeastern Argentina. Some species of the genus have taxonomic and/or nomenclatural problems, such as C. flavolineatus which lacks agreement in the literature about its authorship and type locality. Some researchers have been suggesting Jan (1863) as the author of the species...

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

The present study is a taxonomic revision of the genus Drymoluber Amaral, 1930, using meristic and morphometric characters, aspects of external hemipenial morphology and body coloration. Sexual dimorphism occurs in D. dichrous and D. brazili but was not detected in D. apurimacensis. Morphological variation within D. dichrous is related to geographic distance between populations. Furthermore, va...

Notes on the Feeding Behavior and Caudal Luring by Juvenile Alsophis portoricensis (Serpentes: Colubridae)

Proteolytic, hemorrhagic, and neurotoxic activities caused by Leptodeira annulata ashmeadii (Serpentes: Colubridae) Duvernoy's gland secretion.

OBJECTIVE The main goal was to explore the different toxin properties (proteolytic, hemorrhagic, and neurotoxic) of Leptodeira annulata ashmeadii Duvernoy's gland secretion (DGS). METHODS To separate and characterize the different proteins present in L. annulata ashmeadii DGS, 20% sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) was run. To partially purify the proteolytic...

A case of communal nesting in the Neotropical snake Sibynomorphus mikanii (Serpentes, Colubridae)