TABLE 1 in Description of three new species of Hyalella Smith, 1874 (Crustacea: Amphipoda) from Southeast Mexico

TABLE 1. Morphological comparison between Hyalella species from the Southeast of Mexico and H. azteca (Veracruz).
Hyalella parva n. sp.Hyalella lacandonis n. sp.Hyalella montebellensis n. sp.Hyalella azteca (De Saussure, 1858)Hyalella cenotensis Marrón-Becerra, Hermoso-Salazar & Solís-Weiss, 2014Hyalella maya Marrón-Becerra, Hermoso- Salazar & Solís- Weiss, 2018LocalityNahá, ChiapasMontebello lake Península, ChiapasMontebello lake Esmeralda, ChiapasVeracruzCenote Aktun-Ha, Quintana RooCenote Aktun-Ha, Quintana RooBody total length (mm)3.356.966.567.85.33.85MucronationsabsentminutepresentpresentpresentpresentHead length: first two pereonites2/3 1st1/2 2nd1/2 2nd1/2 2nd3rd3rdEyessubtriangularroundedroundedroundedabsentkidney-shapedAntenna 1, flagellum, number ofarticles71111779Antenna 2 length: total bodylength<1/3>1/3>1/3<1/3<1/3>1/3Antenna 2: pereonitesoverreaching 4thalmost reaching 1/2 of 4thalmost reaching 1/2 of 4th4th1/2 of 4threaching 5thAntenna 2, flagellum, number of articles51111–128810Maxilla 1, palp length: length to the outer plate base setae<1/2>1/2>1/21/21/2<1/2Maxilla 1, palp setapresentpresentpresentabsentpresentpresentMaxilla 1, inner plate setae244333Maxilla 2, inner plate serrulate setae4365--Maxilliped, palp, fourth article, inner margin setae334433Gnathopod 1, carpus, inner surface lobe setae12–32–3242Gnathopod 1, propodus length: wide1.51.41.51.51.51.7Gnathopod 1, propodus, setae in a row234434Gnathopod 1, seta almost at midventral marginabsentabsentpresentabsentpresentabsentGnathopod 1, basis length: wide3.5332.52.53Male, gnathopod 2, basis proportions L/W3.7 times3.4 timesmore than 4 times3-3Male gnathopod 2, basis hind margin setae122–32-1Male gnathopod 2, proportion carpus lobe: width of merusexceeding 1.5 timesexceeding 1.5 times1.5 times1.5-1Male gnathopod 2, palm, excavationabsentwideabsentpresent-absentMale gnathopod 2, dactyl occupation in cup for dactyl1/2<1/2<1/2<1/2-1/2Pereopod 3, basis hind margin setae112111Pereopod 3, dactyl proportions: propodus>1/21/2<1/2<1/21/2<1/2Pereopod 7, lobe, width: basis width21.52.51.51.52Pereopod 7, lobe, hind margin setae4–5111318119Pereopod 7, lobe, hind margin distal margin stout setae022–3330Uropod 1, peduncle, dorsal setae22–33232Uropod 2, inner ramus, dorsal setae243222Uropod 3: uropod 2 peduncleshortersimilarshortershortershortershorterTelsonL>WL>WL>WW>LW>LW>L
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