scholarly journals Revision of the geographic distribution of three species of the montanus group of Liolaemus Wiegmann, 1834 (Reptilia: Squamata: Liolaemidae)

Check List ◽  
2014 ◽  
Vol 10 (1) ◽  
pp. 221 ◽  
Author(s):  
Jaime Troncoso-Palacios
Keyword(s):  
Geographic Distribution ◽  
Northern Chile ◽  
La Paz ◽  
Group I

Here I review the distribution of three Liolaemus species of the montanus group. I conclude that L. signifer has been recorded in Peru (Puno, Tacna and Moquegua, departments), Bolivia (La Paz, Cochabamba and Oruro departments) and northern Chile (Arica and Parinacota Region). Liolaemus multicolor and L. andinus should be restricted to Argentina.

scholarly journals A solution to the enigma of the type locality of Telmatobius halli Noble, 1938 (Anura, Telmatobiidae), a frog lost for 86 years

ZooKeys ◽  
2021 ◽  
Vol 1060 ◽  
pp. 183-192
Author(s):  
Claudio Correa
Keyword(s):  
High Altitude ◽  
Detailed Analysis ◽  
Geographic Distribution ◽  
Geographic Information ◽  
Type Locality ◽  
Northern Chile ◽  
Type Specimens ◽  
Warm Spring ◽  
True Type

For 80 years, there were no sightings of the Andean frog, Telmatobius halli, due to the ambiguity with which its type locality was described (“warm spring near Ollagüe”, northern Chile). The type specimens were collected during the International High Altitude Expedition to Chile (IHAEC) in 1935 and were subsequently described in 1938. In 2018 and 2020, two studies independently reported the rediscovery of the species, but they reached different conclusions about its identity and geographic distribution. In fact, the populations identified as T. halli in those studies are more phylogenetically related to other species than to each other, so they clearly do not belong to the same taxon. Although the study of 2020 is more in line with the geographic information of the description, it does not consider some bibliographic details and the transport limitations of the IHAEC. Here, based on a detailed analysis of the chronicles of the IHAEC and other bibliographic sources, I first refute the proposals of the 2018 and 2020 studies and then provide a possible solution. The combined information from the chronicles indicates that the type locality of T. halli is found at the sources of the Loa River, a different place from those identified in the two previous studies. By also incorporating geographic information of the time, I conclude that its true type locality is Miño, an abandoned mining camp located near the origin of the Loa River, where currently no populations of the genus have been described.

scholarly journals Liolaemus patriciaiturrae Navarro and Núñez, 1993 (Squamata: Liolaemidae): distribution extension in northern Chile and geographic distribution map

Check List ◽  
2013 ◽  
Vol 9 (1) ◽  
pp. 78 ◽  
Author(s):  
Jaime Troncoso-Palacios ◽  
Francisco Ferri-Yáñez
Keyword(s):  
Geographic Distribution ◽  
New Records ◽  
Northern Chile ◽  
Distribution Map

We report two new records for Liolaemus patriciaiturrae in Chile, one corresponding to specimens previously misidentified as L. nigriceps. We also provide a map showing all the known locations of the species.

scholarly journals The Bulimulidae (Mollusca: Pulmonata) from the Región de Atacama, northern Chile

PeerJ ◽  
2015 ◽  
Vol 3 ◽  
pp. e1383 ◽  
Author(s):  
Juan Francisco Araya
Keyword(s):  
Geographic Distribution ◽  
Formal Analysis ◽  
Land Snails ◽  
Snail Species ◽  
Northern Chile ◽  
Coastal Zones ◽  
Terrestrial Snails ◽  
Juan Fernández Archipelago ◽  
First Time ◽  
Molluscan Species

The bulimulid genusBostryxTroschel, 1847 is the most species-rich genus of land snails found in Chile, with the majority of its species found only in the northern part of the country, usually in arid coastal zones. This genus has been sparsely studied in Chile and there is little information on their distribution, diversity or ecology. Here, for the first time, a formal analysis of the diversity of bulimulids in the Región de Atacama, northern Chile, is reported. Of the seventeen species recorded for the area, most of them were efectively found in the field collections and one record was based on literature. Five taxa are described as new:Bostryx ancavilorumsp. nov.,Bostryx breureisp. nov.,Bostryx calderaensissp. nov.,Bostryx ireneaesp. nov. andBostryx valdovinosisp. nov., and the known geographic distribution of seven species is extended. Results reveal that the Región de Atacama is the richest region in terrestrial snails in Chile, after the Juan Fernández Archipelago. All of the terrestrial molluscan species occurring in the area are endemic to Chile, most of them with restricted geographic distributions along the coastal zones, and none of them are currently protected by law. Further sampling in northern Chile will probably reveal more snail species to be discovered and described.

scholarly journals Tachymenis peruviana Wiegmann, 1834 (Serpentes, Dipsadidae) in Argentina: geographic distribution and a new province record

Check List ◽  
2019 ◽  
Vol 15 (1) ◽  
pp. 7-12
Author(s):  
Gabriela A. Gallardo ◽  
Santiago J. Nenda ◽  
Gustavo J. Scrocchi Manfrini
Keyword(s):  
Geographic Distribution ◽  
Northern Chile ◽  
Northwestern Argentina ◽  
Catamarca Province ◽  
La Rioja

Tachymenis peruviana Wiegmann, 1834 (Serpentes, Dipsadidae) is known from Peru, Bolivia, northern Chile and northwestern Argentina.  In northwestern Argentina, the species is distributed from Jujuy to Catamarca province. In this study, we present the accurate distribution of the species in Argentina and the first records from La Rioja province, at 2000 and 3000 m a.s.l. in the Famatina region, extending the known distribution to the southwest.

Ultrastructural Lesions Produced by Alcohol and Sucrose in the Heart and Liver of C57BL Mice

1970 ◽  
Vol 28 ◽  
pp. 208-209
Author(s):  
K.K. SEKHRI ◽  
C.S. ALEXANDER ◽  
H.T. NAGASAWA
Keyword(s):  
Osmium Tetroxide ◽  
Male Mice ◽  
Alcohol Group ◽  
Group Iii ◽  
Group I ◽  
C57bl Mice ◽  
Group Ii

C57BL male mice (Jackson Lab., Bar Harbor, Maine) weighing about 18 gms were randomly divided into three groups: group I was fed sweetened liquid alcohol diet (modified Schenkl) in which 36% of the calories were derived from alcohol; group II was maintained on a similar diet but alcohol was isocalorically substituted by sucrose; group III was fed regular mouse chow ad lib for five months. Liver and heart tissues were fixed in 2.5% cacodylate buffered glutaraldehyde, post-fixed in 2% osmium tetroxide and embedded in Epon-araldite.

The Quantitative Ultrastructure of the Heart Muscle of Japanese Quail by Hypergravitation, Hypodynamy and Combination

1990 ◽  
Vol 48 (3) ◽  
pp. 188-189
Author(s):  
Anton Bózner ◽  
Mikuláš Gažo ◽  
Jozef Dostál
Keyword(s):  
Japanese Quail ◽  
Heart Muscle ◽  
Relative Size ◽  
Combination Group ◽  
Control Group ◽  
Group V ◽  
Group Iii ◽  
Space Flights ◽  
Group I ◽  
Quantitative Ultrastructure

It is anticipated that Japanese quail /Coturnix coturnix japonica/ will provide animal proteins in long term space flights. Consequently this species of birds is of research interest of international space program INTERCOSMOS. In the year 1987 we reported on an experiment /2/ in which the effect of chronic acceleration of 2 G hypergravitation, the hypodynamy and the simultaneous effect of chronic acceleration and the location in the centre of the turntable of the centrifuge on the protein fractions in skeletal muscles was studied. The ultrastructure of the heart muscle was now in this experiments examined as well.Japanese quail cockerels, aged 48 days were exposed to 2 G hypergravitation /group IV/ in a 6,4 m diameter centrifuge, to hypodynamy /group III/ and their combination /group V/, respectively for 6 days / Fig.1/. The hypodynamy in group III was achieved by suspending the birds in jackets without contact the floor. The group II was located in the centre ofthe turntable of the centrifuge. The control group I. was kept under normal conditions. The quantitative ultrastructure of myocard was evaluated by the methods of Weibel/3/ - this enables to determine the number, relative size and volume of mitochondria volume of single mitochondria, defficiency of mitochondrial cristae and volume of myofibrils.

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