Demographics and reproductive biology of Hydrophis schistosus may make it more resilient to bycatch effects than other sea snakes

2021 ◽  
pp. 101948
Author(s):  
Shawn Dsouza ◽  
Chetan Rao
2008 ◽  
Author(s):  
Michael Cermak

Spectacular Snakes of Australia showcases these beautiful creatures which play such an important part in our biodiversity. It portrays most of the species found in Australia, such as tiger snakes, copperheads, brown snakes, death adders and sea snakes, up close and personal. It also includes some unique photographs, such as the hatching of scrub pythons, that offer a rare glimpse into their more intimate lives. The informative text, based on the latest research, describes the reproductive biology, behaviour, predators and prey of these reptiles, as well as their habitat and conservation values. Readers will explore the importance of colours and patterns in allowing snakes to blend into their environment, their defence and attack mechanisms, and the adaptations they have undergone to cope with their surroundings. In addition, the author provides some anecdotes on his encounters with snakes, and clears up a few myths regarding snake behaviour. Richly illustrated with exceptional photographs, Spectacular Snakes of Australia features the deadly serious as well as the quirky – from snakes that love water to those with potent venom, and even snakes that are blind! This book is a real treat for snake lovers.


Author(s):  
Alan N. Hodgson

The hermaphrodite duct of pulmonate snails connects the ovotestis to the fertilization pouch. The duct is typically divided into three zones; aproximal duct which leaves the ovotestis, the middle duct (seminal vesicle) and the distal ovotestis duct. The seminal vesicle forms the major portion of the duct and is thought to store sperm prior to copulation. In addition the duct may also play a role in sperm maturation and degredation. Although the structure of the seminal vesicle has been described for a number of snails at the light microscope level there appear to be only two descriptions of the ultrastructure of this tissue. Clearly if the role of the hermaphrodite duct in the reproductive biology of pulmonatesis to be understood, knowledge of its fine structure is required.Hermaphrodite ducts, both containing and lacking sperm, of species of the terrestrial pulmonate genera Sphincterochila, Levantina, and Helix and the marine pulmonate genus Siphonaria were prepared for transmission electron microscopy by standard techniques.


2009 ◽  
Vol 40 ◽  
pp. 59-73 ◽  
Author(s):  
E A Filina ◽  
V N Khlivnoy ◽  
V I Vinnichenko
Keyword(s):  

2020 ◽  
Vol 2020 (15) ◽  
pp. 30
Author(s):  
Maiume Silva-da-Silva ◽  
Danilo Augusto Almeida-Santos ◽  
Síria Ribeiro ◽  
Renato Sousa Recoder ◽  
Alfredo P. Santos

2011 ◽  
Vol 4 (2) ◽  
pp. 200-202
Author(s):  
Sergei V. Mamet ◽  
Sergei V. Kudryavtsev
Keyword(s):  

Results of a long-term project involving captive reproduction of Elaphe persica are presented, complete with measurements of the youngs.


Sign in / Sign up

Export Citation Format

Share Document