Skip to main content
Figure 4 | BMC Developmental Biology

Figure 4

From: Spiral cleavage and early embryology of a loxosomatid entoproct and the usefulness of spiralian apical cross patterns for phylogenetic inferences

Figure 4

Spiralian apical cross cell patterns based on several authors as well as the data on Loxosomella presented herein. Dark grey: apical rosette cells, grey: periphere rosette/"annelid cross" cells, light grey: "molluscan cross" cells. A: 43-cell stage of Loxosomella sp (this study). B. Approximately 64-cell stage of the aplacophoran mollusc Epimenia sp. (after [48]). C: Approximately 62-cell stage of the polyplacophoran mollusc Stenoplax heathiana (= Ischnochiton magdalenensis; after [32], pl. 2, figure. 17). D: 58-cell stage of the gastropod mollusc Patella caerulea (after [47], figure. I, 7). E: 64-cell stage of the nemertean Carinoma tremaphoros (after [24], figure. 6 J). F: Approximately 64-cell stage of the polyclad flatworm Maritigrella crozieri (after [54], Figure 1 E). G: 64-cell stage of the echiurid Urechis caupo (after [55], pl. IV). H: 48-cell stage of the sipunculan Golfingia vulgaris (= Phascolosoma vulgare after [56], pl. XXXII, figure. 9). I: Approximately 58-cell stage of the polychaete Nereis sp. (after [46], diagram II, B).

Back to article page