EXPLANATION OF PLATE III. 

 FIG. 



1. SALPINGCECA or MONOSIGA sp. Figured in Mr. Carter's MS. note-book with- 



out description, Bombay, Aug. 1855. 



2. SALPINGCECA or MONOSIGA sp. Figured by R. Greeff (Wiegmann's 'Archiv,' 



Heft vi., 1870) as minute Flagellata attached to pedicle of Epistylis 

 flavicans. 



3-7. CODOSIGA CYMOSA, S. K. 3 and 4, Fully developed colony-stocks, or " zooden- 

 dria," x 1250; 5, branchlet with three zooids, the one at a being of abnormal 

 size ; 6, branchlet with two zooids, the one at a having encysted and 

 separated by segmentation into two equal halves ; 7, apparent abnormal 

 colonial growth of the same species ? 

 8, 9. CODOSIGA CANDELABRUM, S. K., x 800. 



10-12. SALPINGCECA MINUTA, S. K. 10, Two adult zooids and a single undeveloped 

 germ (a) attached to an empty lorica of Dinobryon sertularia, X 1000 ; 

 n, a single zooid further enlarged ; 12, a zooid with collar withdrawn pre- 

 senting a semi-amoeboid condition. 



13-15. SALPINGCECA MARINA, J.-Clk. 13, Early and naked condition ; 14 and 15, 



adult zooids with loricae developed, x 1 800. 

 1 6. SALPINGCECA PYXIDIUM, S. K., x 1000. 



17-21. SALPINGCECA AMPULLA, S. K. 17, Adult zooid with fully developed lorica, 

 X 1250 ; 1 8, empty lorica ; 19, zooid with lorica imperfectly developed and as 

 yet mucilaginous in consistence, at a, a monoflagellate collarless germ attached 

 to the exterior of the lorica; 20, a germ which has become attached and 

 commenced to develop its collar and protective lorica; 21, a more 

 advanced growth of the same zooid. 



22-24. Minute flagellate and apparently collar-bearing loricate monads (Salpingceca), 

 attached to pedicle of Epistylis flavicans, as delineated by Greeff, x 300. 



25. LAGENCECA CUSPIDATA, S. K., x 1500. 



26. SALPINGCECA PETIOLATA, S. K., x 1250. 



27, 28. POLYNCECA DICHOTOMA, S. K. Two social colony-stocks or polythecia, 

 x 1000. 



