Table 1 in Five new species of Enchytraeidae (Annelida: Clitellata) from Mediterranean woodlands of Italy and reaffirmed validity of Achaeta etrusca, Fridericia bulbosa and F. miraflores

Table 1. Key morphological characters distinguishing Fridericia meridiana sp. nov. from the known quadrisetose congeners possessing adiverticulate spermathecae, peripherally granular coelomocytes and short, simple peptonephridia. Measurements in this table refer to live specimens, except where specified by (f), meaning fixed material.
SpeciesF. meridiana sp. nov.F. bretscheri Southern, 1907F. schmelzi Cech & Dózsa-Farkas, 2005F. composti Schmelz, 2003F. semisetosa Dózsa-Farkas, 1970Length5–6 mm5–10 mm5–7.7 mm6–8 mm5–7 mmWidth (at clitellum)0.19–0.20 mm0.25–0.32 μm0.22–0.29 mm0.30 mm0.15–0.24 μmSegments28–3630–4234–3733–3624–34Chaetal formula2,3 – 2: 2,3,4 – (3),2(2,3),4 – 4,3,2: 3,4 – 4,3,2(2),3,4 – (3),2: 3,4 – (4),20,1,2,(3,4)1,0 – 0: 2,3,4 – (3),2,1Chaetal length precl.25–40 μmup to 40 μmup to 29 μmup to 40 μm20–30 μmMax length postcl.50 μm65 μm?40 μmup to 30 μmClitellar patternregular rows, interrupted ventrally in XII; cells mostly hyaline, largeirregular; complete; rows of granular cells between male poresregular rows, often double, interrupted ventr. in XII; hyaline cells largeirregular; complete; rows of granular cells between male poresregular rows, interrupted dorsally and ventrally; hyaline cells largerMale openingsT-shapedlongitudinal (staple)transversalL or T-shapedT-shapedPeptonephridiaType aType aType aType aType aCoelomocytes:nucleatedType b, 18–30 μm longType b, 30–36 μm longType b, 24–34 μmType b, 22–25 μmType b, 20 μm(f)anucleatesmall (5–10 μm)small (6–10 μm)large (8–12 μm)large (8–12 μm)large (9–12 μm)(f)Chylus cellsIX–X or X–XIXII–XVIX–X, X–XI or XI–XIIX–XIIXII–XIII or XI–XIIDorsal vessel fromXIII–XIVXV–XVIIIXIV–XVIXIVXIV–XVIPreclitellar nephridia4 pairs (6/7–9/10) midventral4 pairs (6/7–9/10) midventral5 pairs (6/7–10/11) midventral5 pairs (6/7–10/11) subterminal5 pairs (6/7–10/11) midventralSperm funnels l: w75: 38 μm90–200: 50–100 μm48–62: 29–34 μm80: 35 μm70–110: 37–65 μmPenial bulb length55 μm80–120 μm110 μm62 μm70–90 μm(f)Spermathecal ampulla w; ental ducts; ectal20 μm(f); separate or adjacent; 175 μm43–49 μm; adjacent or merging;22–25 μm; merging dorsally;25–28 μm(f); merging dorsally;22 μm; merging dorsally;duct l: w250: 15 μm130–160: 10 μm100–120: 10 μm(f)100: 10 μm(f)glands at pore1, small, 8–10 μm long(f)1or 2, large, 60 μm long1, 20–30 μm1, 20 μm long(f)1, 20–22 μm long