EXPLANATION OF PLATE V. 

 FIG. 



1-9. SALPINGCECA AMPHORIDIUM, J.-Clark. i, Social colony attached to confervoid 

 filament, x 625 ; 2, a separate and normal zooid with collar fully expanded, 

 x 1250 ; 3, a zooid with collar contracted, and with lorica supported on a 

 rudimentary pedicle; 4, zooid encysted within its lorica; 5, zooid with collar 

 entirely retracted, the flagellum remaining, but much thickened at its base, 

 and the body-sarcode protruding in a lobose form ; 6, anterior region of 

 zooid, showing its protrusion from the lorica in the form of a fascicle of 

 filamentous pseudopodia ; 7, a zooid in which the protruded sarcode has 

 assumed a branched, pinnatifid, contour ; 8, the protruded sarcode of the 

 same zooid having become detached, and resembling a stellate floating 

 amoeba, x 1250; 9, a more minute stellate amceba-like body found floating 

 in the same vicinity, and probably possessing a similar derivation. 



10-12. SALPINGCECA STEINII, S. K. 10, two rosette-shaped colonies, and four more 

 isolated zooids attached to the pedicle of Epistylis anastatica, x 300 (Stein) ; 

 1 1, a single zooid (Stein); 12, a colony, as found by the author, attached 

 to the pedicle of Vorticella campanula, x 1000. 

 13. SALPINGCECA AMPHORA, S. K., x 1500. 



14-16. SALPINGCECA URCEOLATA, S. K. ; 14 and 15, z6*oids with collar extended and 

 contracted; 16, empty lorica, x 1500. 



17, 1 8. SALPINGCECA RINGENS, S. K. At 1 8 an example encysted, x 1500. 



19. SALPINGCECA CURVIPES, S. K., x 2000. 



20. POLYNCECA DICHOTOMA, S. K., X 1500. 



21, 22. SALPINGCECA TINTINNABULUM, S. K. 22, Encysted state, x 2000. 



23, 24. SALPINGCECA (?) WALLICHI, S. K. 23, Remains of lories at a a a embedded 



within shell substance of a Globigerina ; 24, a single isolated lorica, highly 



magnified. 

 25, 26. SALPINGCECA NAPIFORMIS, S. K. 25, A social colony in vegetable fibre, x 800 ; 



26, a single zooid more highly magnified. 

 27-31. SALPINGCECA FUSIFORMIS, S. K. 27, A normal, fully expanded zooid, x 1500 ; 



28, a zooid with collar and flagellum retracted, assuming an amoeboid state ; 



29, an encysted zooid ; 30, similar encystment, with body broken up into 

 numerous spore-like bodies; 31, spore-like bodies further developed, and 

 being discharged from the lorica as monoflagellate germs. 



32. A form of SALPINGCECA, apparently near S. FUSIFORMIS, dividing by transverse 



fission (after Biitschli). 



33. A probable variety of SALPINGCECA AMPHORIDIUM, the lorica having a flattened 



base, the collar imperfectly delineated (after Biitschli). 



34. SALPINGCECA MARINA, J.-Clk. An example with the collar and flagellum with- 



drawn, emitting ray-like pseudopodia, x 1 800. 



