Kuvat / Äänet

Havainnoija

coreyjlange

Päivämäärä

Helmikuu 17, 2020 12:06 PM CST

Paikka

Dyer, NV, US (Google, OSM)

Kuvaus

These Pyrgulopsis snails were found in two shallow springs within the township and range described for the type locality of Pyrgulopsis ruinosa.

Pyrgulopsis ruinosa was formally considered extinct in 1998 when Hershler (1998) stated, "Snails were collected in the shallow outflow, and were absent both in the spring pool and in other springs of this complex. This species has not been collected on subsequent visits to this now degraded area and is probably extinct." Hershler (1998) believed that Pyrgulopsis ruinosa was extinct when he described the species.

Hurt (2004) states, “Three described species of Pyrgulopsis have gone extinct since their description in the early 1900s and it is likely that other species have been lost before they have been discovered.” Three species of Nevada Pyrgulopsis are presumed to be extinct-- the Carinate Duckwater Pyrg (Pyrgulopsis carinata) from Nye County, the Fish Lake Pyrg (Pyrgulopsis ruinosa) from Esmeralda County, and the Corded Pyrg from Washoe County (Hershler and Thompson 1987, Hershler 1998).

Pyrgulopsis carinata was refound in 2007 and 2009, so that species is no longer classified as extinct.

Sada and Vinyard (2002) reported that extinction of P. ruinosa occurred after springs were impounded on the McNett Ranch in Fish Lake Valley, Esmeralda County, Nevada.

I am not aware of any subsequent searches for this species, but in every publication and report since 1998, Pyrgulopsis ruinosa has been classified as extinct (Hershler and Liu 2017, Hurt 2004, Johnson et al. 2013, Sada 2009).

Based on location alone, these Pyrgulopsis snails seem to be the long-thought extinct species, Pyrgulopsis ruinosa!!! I will be conducting subsequent visits to the springs to collect specimens for genetic and morphological analysis to confirm their identity.

Hershler, R. 1998. A systematic review of the hydrobiid snails (Gastropoda: Rissooidea) of the Great Basin, western United States, Part I. Genus Pyrgulopsis. The Veliger 41(1):1-132.

Hershler, R. and H.P. Liu. 2017. Annotated checklist of freshwater Truncatelloidean gastropods of the western United States, with an illustrated key to the Genera. U.S. Department of the Interior: Bureau of Land Management.

Hurt, C.R. 2004. Genetic divergence, population structure and historical demography of rare springsnails (Pyrgulopsis) in the lower Colorado River basin. Molecular Ecology 13:1173–1187.

Johnson, P., A. Bogan, K. Brown, N. Burkhead, J. Cordeiro, J. Garner, P. Hartfield, D. Lepitzki, G. Mackie, E. Pip, E. Tarpley, T. Tiemann, N. Whelan, and E. Strong. 2013. Conservation status of freshwater gastropods of Canada and the United States. Fisheries. 38. 247. 10.1080/03632415.2013.785396.

Sada, D.W. 2009. A guide to springsnail (Family Hydrobiidae) identification and monitoring. Desert Research Institute.

Kuvat / Äänet

Havainnoija

greglasley

Päivämäärä

Huhtikuu 2019

Paikka

Texas, US (Google, OSM)

Kuvaus

we had a very nice time photographing this very local species not often observed in Texas.We saw at least 4 different individuals including a pair in copula. Shots of the pair, perched on my finger, will be posted later by nancynorman and briangooding

Kuvat / Äänet

Havainnoija

greglasley

Päivämäärä

Huhtikuu 2019

Paikka

Texas, US (Google, OSM)

Kuvaus

One of the targets of our trip was this species and we were fortunate to find three today. These shots show a perched male. Two of the shots show @briangooding and @nancynorman photographing this species. This is a very rare and local species of far east Texas and western Louisiana

Kuvat / Äänet

Mitä

Mola tecta

Havainnoija

tomleeturner

Päivämäärä

Helmikuu 19, 2019 05:17 PM PST

Kuvaus

I am 6 feet from finger tip to finger tip. Big fish!

Kuvat / Äänet

Havainnoija

pufferchung

Päivämäärä

Helmikuu 6, 2019 05:00 PM CST

Kuvaus

I am not sure what this one is.

Kuvat / Äänet

Havainnoija

abel22

Päivämäärä

Syyskuu 2017

Paikka

Puebla, MX (Google, OSM)

Kuvat / Äänet

Mitä

Harmaakettu (Urocyon cinereoargenteus)

Havainnoija

oddfitz

Päivämäärä

Lokakuu 6, 2017 11:45 AM CDT

Kuvaus

I had been trying and failing to get some pic's of a Stellar's Jay for about 5 minutes in the shade of this same tree and had that "being watched" feeling. He was about 10 feet up the tree and never budged for the 10 minutes I was there

Kuvat / Äänet

Mitä

Jaguaari (Panthera onca)

Havainnoija

greglasley

Päivämäärä

Elokuu 2017

Kuvaus

These were the first Jaguars we encountered on our first boat ride on the Cuiaba River hoping to see these animals. This pair was loafing on a hot afternoon along a sand bank of the river. The pair mated several times. Later the female came to the edge of the river to drink.

Cuiaba River,
near Porto Jofre,
Pantanal,
Brazil
12 August 2017

Kuvat / Äänet

Havainnoija

mlgray12

Päivämäärä

Toukokuu 1, 2017 03:36 PM CDT

Kuvaus

Western Coachwhip that showed up close to my water drip estimate snake close to 4 feet in length

Kuvat / Äänet

Havainnoija

ashleytwahlberg

Päivämäärä

Kesäkuu 2016

Paikka

Yksityinen

Kuvaus

Harris Co, TX. Very neat aberrant coral!

Kuvat / Äänet

Havainnoija

txherpbird

Päivämäärä

Kesäkuu 5, 2017 08:55 PM CDT

Kuvaus

74 degrees F., light rain

Eating DeKay's Brown snake

Kuvat / Äänet

Mitä

Kojootti (Canis latrans)

Havainnoija

oddfitz

Päivämäärä

Joulukuu 29, 2014 02:09 AM CST

Kuvaus

One of my favorite game camera captures.