PLATE IX. 



Figs. 1-8. Salpa quadrata, u. sp. 

 Fig. 9. Salpa scutigera-confoederata. 



br.l. Branchial lobes. 



d.l. Dorsal lamina. 



d.t. Dorsal tubercle. 



en. Endostyle. 



en.l. Ijip of endostyle. 



m. Mantle. 



m.h. Muscle bauds. 



n.g. Nerve gangliou. 



p.p. Teripliaryngeal band. 



t. Test. 



rUc. Visceral mass. 



Fig. 1. Salpa quadrata, from the right side, enlarged. 



Fi*^. 2. Anterior end of the same, from the left side, enlarged. 



Fiff. 3. Dissection of the anterior part of the same ; x. 2^. 



Fig. 4. Part of last ; more highly magnified (S. 1). 



Fig. 5. Dissection of the dorsal part of the posterior end of the body of same ; x 6. 



Fi.f^. 6. Posterior part of dorsal lamina of same (S. l). 



Fig. 7. Visceral mass and posterior part of endostyle of same, from dorsal side ; x 1^. 



Fig. 8. Part of endostyle and neighbouring parts, showing diverticulum of ectodenn 

 and mantle into test (S. 1). 



Yi<y. 9. Salpa ncutigera-confaederata ; aggregated form, enlarged. 



