[bailey-mackay] diatoms FROM VANCOUVER ISLAND, B. C. 171 



Stephanopyxis appendiculata Ehr. z30(36/2)s4, z30(7 + 36/2 + 7:37/2 



+ 7 + 45/2 + 9)=z30(148/3)s4. (30= breadth 

 7 = spines, 36/2 = 18 = length of nearly hem- 

 ispherical frustule). 

 Striatella (?) z57(32/8)s20+ or ?, v97(31)s ?. 

 Surir ella fastiio sa Ehr. var. ( ?). v70(57)s2. 



" Japonica A.S. var. v86(36'30:36)sl.9:ll, vl08(48:44:48)s 

 1.9:11, vll5(24:23:24)sl.9:ll. Differs from 

 5. Japonica between the marginal band of 

 loculi and the sub-central parallel band of 

 minute dashes normal to the periphery and 

 nearly a micron apart, an interstitial row or 

 band of groups of four dashes opposite each 

 marginal loculus with a single dash beneath 

 each group approaching the subcentral band. 

 lata Sm. var. ( ?). v81 (33)— si. 3. 

 " (wata Ktz. v32(18)s4, v33(20)s4, v46(26)s4. 

 Syndendrium diadema Ehr. = the spore of Chaetoceros paradoxum Cleve. 

 Synedra acus (Ktz) Grun. var. ( ?). (Kendall). 

 " affinis Ktz. vlOO(2-t- :2:6:2:2 + )sl3, v60. 

 " " var. tabulata Grun. v86(2:5:2)sll, vl23(3.5:5.5:3.5) 



sll. vl65(2:4.5:2)sll, vl35(2:5:2)s9, vl80 

 ( )sll. zl51(10:8:10)slO, v208(2-|- :5:2-F) 

 sl2, vll6(2:5:2)sl2. 

 « n.sp.?v98(3:2:5:2:3)sll, v252(9:7:9:7:9)sll, v300(10:7:8:7: 

 :10)sl4. zl95(15:9)s7, v271(9.5:7.5:8:7.5:9.5) 

 sll. Valve with marginal dots 8 to 10 

 microns. Double row from centre coalesce 

 into one near the ends, then enlarge into a 

 central cluster in the clear area of the capitate 

 end. Zone view narrower at one end. 

 " Gallionii Ehr. var. ( ?). v215(5:10:5)sl6, v250(4:9:4)sl5. 

 Differs from the type species decidedly in 

 its finer sculpture — ^15 or 16 lines to 10 mu 

 instead of 9 or 10. 

 " investiens Sm. vl2(3)sl0, v45(4)sll. 



" n.sp. ? v85 (4 :8 :4)s20, 10 mu at centre smooth, ends round, the 

 valve soon broadening to the centre, the 

 sculpture very fine across the whole valve 

 except at the very ends and 10 mu at the 

 centre. Another measured specimen gave 

 v87(4:7.5:4)s20. Striation very distinct un- 

 der a 1 /16th oil immersion objective. 



