scientific endangered species minute freshwater gill aquatic family mud tiny previously inhabited small group thermal springs usa survival seriously endangered habitat vulnerable severely threatened current status population habitat area unknown listed endangered governments united_states new_mexico little known general minute size restricted range fact places currently lives private property allows access taxonomy originally described warm springs new_mexico collector date unique sample unknown specimens came collection american essex england pennsylvania likely collected 19th century species formally described named american expert original type description text species officially named described reads follows american zoologist reclassified american assigned members genus including genus description conical shell light tan short words shell low rounded pointed tip shell usually eroded internal reddish brown amber pale height shell body head snout dark gray black color range black dark gray base pale gray tips female larger males male long strip terminal lobe long shorter dorsal strips detailed description reproductive system species provided animal type gill known like respiratory apparatus species tall narrow species genus strong feeding ribbon covered microscopic teeth type seven teeth row middle described detail distribution species endemic central new_mexico southwestern united_states original specimen reportedly came thermal spring near new_mexico extinct type locality date cause extinction uncertain species reported springs disagreement species historically occurred currently known spring spring new_mexico located ecology habitat entirely aquatic occurring low velocity slow moving water near spring sources thermal habitat near hot springs precisely found layer organic substrate surface principal spring source currently found artificially enclosed blocked reduced flowing water habitat small pool tiny spring source remains small improved pool area water temperature species abundant pool found ditches ponds spring irrigation structures found vicinity include colony found occupy source outflow tributary long irrigation ditch found irrigation flow total population spring outflow estimated individuals occurred thermal springs west city living habitats feeding habits species feeds algae materials occur organic film found surface plants debris life cycle females words lay eggs probably deposit eggs spring summer threats limited range precise habitat demands makes species vulnerable habitat loss alteration potential threats species include activities significantly reduce spring flow availability food source supports species alterations springs associated runs cause reduction water flow change water temperature water quality modify habitat food source devastating impact existing populations species extremely limited dispersal capabilities means little ability find disperse suitable habitats habitat conditions changed longer suitable consequently unable avoid unfavorable changes habitat population thought limited single pool area outflow ditch length springs contained eliminated precise habitat critical species survival greatest threat facing species potential loss water flow excessive pumping supplies water springs destroy springs species potential pollution spring negatively impact species cause extinction effects climate change include widespread drought decreased spring discharge change water chemistry newly recognized threat eliminate species conservation state new_mexico listed endangered group march section october fish wildlife service listed species endangered endangered species act extremely limited distribution recovery strategy species foundation maintenance habitat possible additional populations established thermal springs possibility contingent finding springs species presumed historic range physical attributes including terrestrial habitat components requires survive support endemic fauna locality private land access spring denied recent population numbers unknown status habitat unknown magnitude current threats unknown lack cooperation private land owner impacts caused actions specifically identified threat fish wildlife service recommendations actions suggested efforts continue attempt gain access spring access granted recommended life history studies carried monitor population numbers monitored attributes suitable habitat determined qualities like exact nature preferred substrate water temperature limits etc long term monitoring discharge temperature set hand access continues denied recommendation attempt set time visit spring order collect individuals captive population decision implement endangered species act allows authorities acquire land necessary critical habitat conservation listed species felt situation making land public actually expose remaining population greater risk extinction threats vandalism collection unauthorized parties habitat management plan written species directed recovery plan covered species recovery plan date needs revised updated recommended separate plan created
Socorro springsnail