Affinities of Branchiostoma | Zoology
In this article we will discuss about the affinities of branchiostoma. Affinities # Branchiostoma with Mollusca: Molluscs and Branchiostoma differ widely. Superficial resemblances in ciliary feeding and respiratory mechanism (no gill slits in molluscs) have no phylogenetic significance. Affinities # Branchiostoma with Echinodermata: Similarities: 1. Early development cleavage, gastrulation and mesoderm formation. 2. Three separate enterocoelic cavities. 3. The pores [...]