Table 1.
Ultrastructural characteristics of mature vitellocytes of Crepidostomum metoecus compared with those of other studied trematodes.
| Families | Species | Cell size | L | L size | G | CER | SG/SGC | SGC | SGC size | References |
|---|---|---|---|---|---|---|---|---|---|---|
| Allocreadiidae | Crepidostomum metoecus | 19 | 10 | 1.4 | + | − | 32 | 30 | 1.8 | Present study |
| Azygiidae | Azygia lucii | 15 | 5 | 1.5 | + | − | 50 | 19 | 2.7 | [37] |
| Cryptogonimidae | Aphallus tubarium | 7 | 1 | 2 | + | + | 35 | 3 | 2 | [13] |
| Metadena depressa | 8 | 2 | 1 | + | − | 45 | 4 | 3 | [14] | |
| Derogenidae | Halipegus eccentricus | 10 | 0 | 0 | − | − | 60 | 12 | 2 | [22] |
| Dicrocoeliidae | Dicrocoelium dendriticum | 18 | 1 | 1.5 | + | + | 42 | 12 | 3 | [30] |
| Diplostomidae | Pharyngostomoides procyonis | / | 1 | 1 | / | + | 13 | 14 | 1.3 | [30] |
| Fasciolidae | Fasciola hepatica | 20 | 0 | 0 | + | + | 25 | 6 | 2 | [24] |
| Gorgoderidae | Gorgoderina vitelliloba | 7 | 1 | 1.5 | − | − | 95 | 5 | 2 | [23] |
| Phyllodistomum angulatum | 10 | 3 | 2.5 | + | − | 100 | 11 | 2.7 | [37] | |
| Haploporidae | Haploporus lateralis | / | 1 | / | + | − | / | / | / | [42] |
| Microphallidae | Maritrema feliui | 16 | 1 | 1 | + | − | 73 | 5 | 2 | [46] |
| Maritrema linguilla | 10 | 4 | 1 | + | / | / | 11 | 3 | [21] | |
| Plagiorchiidae | Plagiorchis elegans | 20 | 13 | 2 | + | + | 30 | 20 | 2 | [15] |
| Brandesia turgida | 13 | 1 | 1 | − | + | 25 | / | 2.5 | [38] | |
| Schistosomatidae | Schistosoma mansoni | 13 | 14 | 1 | + | + | 27 | 14 | 2 | [7, 8] |
CER: coiled endoplasmic reticulum; G: glycogen; L: lipid droplets; SG/SGC: number of globules per cluster; SGC: shell globule clusters; (+/−): presence/absence of considered character; (/): no data on the considered character. Families are given in alphabetical order. Sizes are in μm. Data are averages of measurements on 10 cells.
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