Mr. C. Mcrcsclikowsky on Caltjomirin Ih'aloins. 2 J9 



81. Amphiprora paludosa, var. hyaliua, Kul. San Pedro, not 



rare, l-^'-j 

 Endoclirome composed of one plate with margins indented. 

 Length 0n,')3 mm. 



82. Tropidoneis elegans (\V. Sm.), CI. San Pedro, not very 



common. [M-] 

 Endoc-hrome composed ot" two pUites. 



83. Tropidoneis vitrea (W. Sm.), CI. [C] 



84. Campyloneis Grevilleij(W. Sm.), Grun., var. typica. San 



Pedro, rare ; Monterey, rare. [M.] 



85. Campyloneis Grevillei, var. regalis, G rev. Calif, guano; 



San Petlro, rare. [C, M.] 



86. Cocconeis costata, Greg. Northern California, common. 



[M.] 



87. Cocconeis costata. \ar. hexagona, Grun. San Pedro ; 



Monterey, rare, marine. [M.j 



Length 0-016-U-020.5 mm., breadth O'OOS-O-OUo mm.; 

 axial area narrow, lanceolate. 



88. Cocconeis costata, var. pacifica, Grun. Southern Cali- 



fornia [llaliulas washings), very common ; Monterey, 

 very common. [M.] 



89. Cocconeis dirupta, var. typica, CI. [C] 



yO. Cocconeis heteroidea, var. sigmoidea, Grun. Santa Monica, 

 on Macrocystisj not very rare. [M.] 



91. Cocconeis pellucida, Ilantzsch. Northern California, rare. 



[M.] 



\}'2,. Cocconeis placentula, Ehr. [C, M.] 



93. Cocconeis placentnla, var. lineata, Ehr. [M.J 



94. Cocconeis pseudomarginata, Greg. San Pedro ; Mon- 



terey, not cunnnun, [M.J 



95. Cocconeis scutellum, Ehr. Kare. [C, M.j 



96. Cocconeis scutellum, var. adjuncta, A. S.* Northern 



Caliiuniia, rather rare. [M.J 



97. Cocconeis scutellum, var. califcrnica, (irun. [C.J 



98. Cocconeis scutellum, var. ornata, Grun. Northern Cali- 



fornia ; Monterey, rare. [M.J 



Lt'Ugth : 0042 0047 OOo.'i 

 lireadth : 00l'8 00.J1 0035' 

 Four rows of puncta in 0*01 mm. ; puncta very lar^e 

 quadrangular. 



* II. IVniyallo, * Diatomt'es marines de France,' plate iv. tig. '2. 



