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1~yphlotricholigidioidesaqunticus: Vande!, 1%4:332:Vandel, 11)65a:283 (erroneous spelling).Typhlotricholigioides: Vandel. ll)58 :;~..J., fi~. 1: Vandd,I1J60: 13B: Vanckl. IIJ6:ie::l,j1.7:yphlotricholigiodps aquaticus: \r~ano. llJ72b:2:l(nrOlwous spellin~).Type-locality.-Clleva d,·1 (ljo d"-\~lIa (;ran,!c. I'araje\IIl'VO, C'·lfl!ol.a. \·,·ranuz. \I,:"ico.Oistribution.-KnowlI only froln lllP lyp,--Iocalil}.See Fig. 10.Oiscussion.-This sp,~ci,:s was fOllnd in lravl'I'lilll'pools filled wilh walt'r Il'fl from noodin~ fronl d,'('pwilhin the cave. Yand('1 (11)();ih) docs nol !wli,'v,' lhalil ever had lnreslriaJ alll·"slon;. II" eonl"lllb lhal it ison(~ of lh,~ mon' primilive living (lniscoidea and thalit is most c!os,'h f{·lalt:d lo LlIl' trol!Jobilic isopodfrom :'pain, CantabwnisclIs fJrimitivlIs Vandd. II"ciles LlIl' similarily of LI)(' lwo sp,'Cie:.; lo show llll'dfeds of conlinental drift.Order AmphipodaAllhough lIlon' lhan 100 sp"cil's of alnphipod havebeC'n found in LIlt:' can's or lh,· hlil('(l .'lal'·s. lill' orderis poorly repn':i\·nlr·d in \I"·\.ico and C"nlral\nll'­rica. (lnly 16 spcci('s of alllphipod ha\(' 11(','n collectedin lhl' cave:.; of lhis f{'~ion. \\ilh lwo ""I"'plionsall are lroglohilic (s"(' Tald,' 10).Family Bo~idiellidac'1'1)(' fa,nil~ 11o~idi"'lidal' is f{'pfl'~,'nl ...J ill llll' cav('Sof \Ic"il'o and (;lIat"1I1ala 11\ nin,' ,Jr.scrilll'd sp('('i('s inthe genlls lJogidiel/a. This ~('nIlS i~ known fronl 1':11­rop'-, Isr'lI'l. Central\sia. Japan. \frica. IJrazil. ILir­Gilda, :'ainl \Iarlin. \I"'"ico. and (;lIal"lIlaJa. \1­thongh IIlosl sp,'