#terrestrial snails

[radioactivegayy]

Rover is Curious about the outside world

[radioactivegayy]

Ahhh forgot to tell my snail Fido that u shouldn’t eat human skin

[oaresearchpaper]

Assessment of diversity and distribution of Bivalves (Mollusca: Bivalvia) in the Indus River District Mianwali, Pakistan

Fresh water mussels have never been the paid attention in freshwater water aquaculture of Punjab with reference to their diversity and distribution. Total number of 300 fresh water bivalves were collected from different selected sites of the River Indus i.e. Chashma Barrage, Jinnah Barrage and Dhair Yaru wala. The specimens were identified on the basis of recent identification keys and diagrammatic description provided in them, to understand the biodiversity of the bivalvia in these localities. It was found that the specimens belonged to ten species, five genera and only to the family Unionidae. The species abundance along with monthly variation of these species at various sites was estimated. The data was subjected to Shannon & Weiner Diversity index showing that all selected sites (Chashma barrage, Jinnah Barrage & Dhair Yaru wala) of river Indus had significant species diversity of the fresh water bivalvia belonging to the family Unionidae.

[oaresearchpaper]

Terrestrial snails as bioindicators of environmental degradation

The snails are very important part of the food chain and excellent source of calcium in the ecosystem for the birds during their breeding season. They are intermediate hosts of many parasites. This study was conducted to estimate the species relative abundance, the effects of abiotic factors on different snail species, which led us to the finding of the indicator species in the agro ecosystem of Faisalabad,. Total of 19,290 snails were collected from crop lands of 24 villages. The species were identified with the help of recent identification keys and RAPD markers. Three snail species i.e. Physa fontinalis, Zooctecus insularis and Ceciliodes acicula were found completely absent from most of the villages except a few, indicating that the possible cause may be presence of arsenic. Other abiotic factors i.e. Cd, Pb, pH and Electrical conductivity are within the permissible limits. These species can be considered extremely important for biomonitoring. This study can be used as a predictive model to estimate environmental degradation.

[typhlonectes]

Convergent evolution of Amphidromus-like colourful arboreal snails and phylogenetic relationship of East Asian camaenids, with description of a new Aegistohadra species (Helicoidei: Camaenidae: Bradybaeninae)

Parin Jirapatrasilp A , Chih-Wei Huang B , Chung-Chi Hwang C , Chirasak Sutcharit A and Chi-Tse Lee

Abstract

East Asian terrestrial snails of the family Camaenidae Pilsbry, 1895a are diverse in terms of genus and species numbers, shell morphology and mode of living. 

This family also includes colourful conical arboreal snails that traditionally have been assigned to the genus Amphidromus Albers, 1850. Yet, the present study shows that, despite their deceiving conchological similarity, some of these East Asian arboreal snails do not belong to the genus Amphidromus or the subfamily Camaeninae Pilsbry, 1895a. 

The presence of a dart complex comprising a mucous gland, a dart sac, an accessory sac and a proximal accessory sac, along with a pronounced penial caecum and molecular phylogenetic analyses revealed that former ‘Amphidromus’ dautzenbergi, ‘A.’ roemeri and ‘Camaena’ mirifica, and one additional new species belong to Aegistohadra Wu, 2004 (subfamily Bradybaeninae Pilsbry, 1934). 

Aegistohadra dautzenbergi, comb. nov. and Aegistohadra roemeri, comb. nov. are conical with colourful spiral bands, whereas Aegistohadra mirifica, comb. nov. and Aegistohadra zhangdanae, sp. nov. are heliciform to conical with colourful, variegated spiral and transverse banding patterns. 

DNA sequence analyses also revealed that each variety of Aegistohadra dautzenbergi could not be differentiated by mitochondrial (cytochrome c oxidase subunit I and 16S rRNA) gene fragments. The phylogenetic position of Aegistohadra within the East Asian camaenids revealed that the similar appearance in shell morphology, microhabitat use and diet to arboreal snails in the genus Amphidromus is homoplastic. 

Moreover, the presence or absence of a dart complex is also homoplastic and is unsuitable for suprageneric classification. By contrast, the presence of a flagellum and a penial caecum is useful for the suprageneric classification.

Read the paper here:

https://www.publish.csiro.au/IS/IS21015

[junipermint]

I am legitimately upset that I can't have a pet land snail because it's illegal to import land snails in the US/to ship them across state lines. The only way to get a pet snail in Minnesota is to go out and catch a wild one but surprise, MN doesn't have land snails. Not really. Just tiny invasive aquatic snails and even smaller nearly-microscopic land snails.

Guys that dream really fucked me up the other night and I am truly heart broken over my dream snail child.

[crazyfishmaiden]

Terrestrial Snail related

So I see so many cute adorable clips and pictures of terrestrial snails. It’s something I’ve wanted for a while now, but I’m curious as to how legal they are in Virginia. Does anyone know?