Skip to main content
Fig. 1 | EvoDevo

Fig. 1

From: Formation of the initial kidney and mouth opening in larval amphioxus studied with serial blockface scanning electron microscopy (SBSEM)

Fig. 1

The anterior region of amphioxus larvae before mouth opening. The somites (shaded) give rise to and are continuous with the lateral plate mesoderm (lpm). Historically, amphioxus somites have been numbered in three different ways. a The present study follows [43] in equating somites to myotomes (shaded). b Alternatively, Hatschek [44] counted a rostral muscular process (rmp) as the first myotome, but later abandoned this idea [45]. c In the third scheme, several authors [19, 26, 37, 46] defined Hatschek’s left (Hld) and right diverticula as the first somites. Coarse stippling in a indicates the zone of compact mesoderm cells in the first left somite

Back to article page

EvoDevo

ISSN: 2041-9139