E5 | Coalescence of germinal bands complete |
E6 | Anterior germinal plate of same length as posterior germinal band |
E7 | Posterior germinal band only 10% of embryo length |
E8 | Nephridial primordia visible in segments 4–12 |
E9 | Mouth no longer widest portion of body; embryo changed from fan-shaped to elliptical; all nephridial primordia visible; genital primordia appearing |
E10 | Nephridiopores becoming white, nonprotruding heart-shaped posterior sucker |
E11 | Outermost rim of mouth closed dorsally; caudal sucker beginning to protrude and becoming disk-like |
E12 | Teeth visible |
E13 | Eye spots visible but not pigmented |
E14 | Eyes pigmented |