42 CALIFORNIA ACADEMY OF SCIENCES. [Proc. 3D Ser. 



EXPLANATION OF PLATE VL 



Figs. 68-82. Licnophora nmcfarlandi, sp. nov. 

 Figs. 83, 84. Boveria subcylindrica, gen. et. sp. nov. 



Fig. 68. Freehand sketch of living Licnophora, showing a characteristic 

 appearance when attached. 



Fig. 69. Diagrammatic outline of Licnophora, showing proportions of a 

 large living specimen. a — 6=i8o,a, c — d=^'j2p., e — f^^^ji, 

 g — h-^=2iO!x, i — y = 7o,u, k — 1 = 25/1, o = :^o,a, m^=^o!i; v, 

 velum, cm, ciliary membranes. 



Fig. 70., Diagram showing direction of rotation of Licnophora when 

 attached. 



Fig. 71. a, basal band with brush of fine cilia; b, same, with cilia twisted; 

 c, one end of basal band, with cilia twisted. 



Fig. 72. Diagram showing the relative proportions of the transverse cilia- 

 bearing bands at the beginning of the oral band. 



Fig. 73. Cross-sections of oral band: a, at the beginning of the spire; b, an 

 average section; c, in the pharynx. 



Fig. 74. Diagram showing relation of neck fibre to the transverse cilia- 

 bearing bands. 



Fig. 75. Attachment disc in outline, showing position and relation of the 

 two neck fibres and the larger branches of _/^, in the fibre layer of 

 the cup. Potassium bichromate maceration. Z. oc. 8, ob. 

 1.5, cam. 



Fig. 76. Freehand sketch of living attachment disc of Licnophora, cut off 

 just below the attachment of the neck fibre, showing large neck 

 fibre (f^), small neck fibre (f^), neck membrane (e) still vibra- 

 ting when drawn, two parts of the velum (v^, v^), outer ciliary 

 membrane (m^), and micronucleus (n^); p is the cut edge of 

 the neck. 



Fig. 77. Camera sketches showing three phases of the vibration of the neck 

 membrane, a, expansion of membrane; b, greatest elevation of 

 the point of the fibre (d), accompanied by greatest tenseness of 

 the membrane (e); c, phase just preceding disappearance of the 

 membrane. 



Fig. 78. Three nuclear segments within the common membrane. 



Fig. 79. Nuclei stained with iron-ha;matox}'lin, showing large granules. 



Fig. 80. Nuclei stained with safranin. 



Fig. 81. Nuclei stained with picro-carmine, showing deeper staining threads, 

 granules and vacuoles. 



Fig. 82. Macronucleus in division stage, showing longitudinal striation. 

 Z. oc. 8, ob. 1.5, cam. 



Fig. 83. Diagrammatic sketch, showing appearance of peristome in feeding. 



Fig. 84. Sketch of living individual with two buds. 



