Table 1 in A macroscopic classification of the embryonic development of the one-sided livebearer Jenynsia multidentata (Teleostei: Anablepidae)

Table 1. Characterization of the embryos of the one-sided livebearer Jenynsia multidentata at the proposed eight stages of development. Scale bar of 0.5 mm. StageIndividual dry weight (mg) ± S.D.SketchesMorphological features10.007 ± 0.006Fertilized egg – Eggs presenting yolk granules.2Outline of optic vesicle – Curved unpigmented embryo. Cephalic, corporal and terminal regions of relative similar size. Detectable outline of the optic vesicle and somites.0.032 ± 0.0323Beginning of the eye pigmentation – Curved embryo with a greater0.069 ± 0.028development of the cephalic region, almost 30% of the body size. Pigmentation of the layers of retina and of the top of the head. Detectableoptic nerve, three to five gill archs and intestine.4Sprout of the caudal fin – The body is thin and translucent. Detectable mouth0.093 ± 0.023opening and the early development of the caudal fin.The retinas are pigmentedand the first punctate melanophores are located in the dorsal region.5Sprouts of dorsal and anal fins – The body is thicker and the trunk is fully0.193 ± 0.074distended. Punctiform melanophores on the top of the head resemble a heartand others scattered along the flanks. Detectable opercle, dorsal and anal fins.6Intrusion of the ovary folds – The embryo is fully distended. Three lines of0.746 ± 0.326punctiform melanophores along the dorsum. Large punctate chromatophores on the top of the head. Fully developed odd fins. The ovarian folds are inserted through the gills.7Occurrence of dendritic melanophores – The embryo increases in lengthand thickness and remains connected to the ovarian tissue through its folds.1.869 ± 0.710Pigmentation is more intense in the mandibular region, dorsal and lateral sidesof the head. The upper mouth is evident and ovarian folds are inserted boththrough the gills and the mouth.8Mature embryo – The body is robust. The pigmentation is spread throughoutthe body: around the mouth and eyes, in the dorsal region and upper the sideline4.243 ± 1.524grouped melanophores resembled dendritic and stained spots. Pigmentation ofall layers of the retina. Embryos may maintain connection with the motherthroughout the ovarian folds.