70 

 Fam. U.—PROTOCOGGAGE^. 



Protococcus viridis Ag. Esholt, Eldwick, &c., &c. (W.). Common 



(A., E., and T.). 

 Chlamydococcus pluvialis Br. Leeds (A., E., and T.) ; Baildon (W.). 

 Scenedesmus acutus Meyen. Arncliflfe, &c. (W.). Bramhope (A., 



E., and T.). 

 Scenedesmus obtusus Meyen. CuUingworth, Bradford, &c. (W.). 



Bramhope (A., E., and T.). 

 Scenedesmus quadricauda Br^b. Malham, &c. (W.); Bramhope 



(A., E., and T.). 

 OpMocytium majus Niig. Bramhope (A., E., and T.). 

 Sciadium arbuscula Braun. Harrogate (A., E., and T.). 

 Pediastrum granulatum. Adel (A., E., and T.). 

 Characium ornithocephaium Br. Baildon (W.). 

 Hydrianum beteromorphum Reinsch. Near Mirfield (W.). 



Fam. 111.— V0LV0GINEJS. 



Volvox globator L. Bramhope, Hunslet (A., E., and T.); Bramham, 



Goole, &c. (Y. N. U. Meetings). 

 Pandorina morum Ehr. Bingley, Baildon, &c. (W.) ; Bramhope, 



York (A., E., and T.). 

 Gonium pectorale Mull. CuUingworth, &c. (W.) ; Wortley (A., E., 



and T.). 



Order II.— ZYGOPHYCE^. 



Fam. 1.—DESMIDIEJS. 



Mesotsenium De By. 1849. 



„ Braunii De By. Adel Bog (T.), 



„ de Qreyii Turner. Blubberhouses Moor (T.). 



Spirot»nia Breb. 1846. 



,, condensata Breb. CuUingworth (W.) ; Adel Bog (T.). 



Penium Breb. 1846. 



,, diplosporum Lund. Adel Dam, Blubberhouses (T.) ; Cul- 



lingworth, Ingleborough (W.). 

 „ rupestre Kiitz. = Cyl. crassa ? De By. Blubberhouses (T.). 

 „ Brebisonii Ealfs. Moortown (T.). 

 „ digitus (Ehr.) Rfs. Rombalds Moor, CuUingworth, 



(W.); Adel Dam (T.). 

 „ oblongum De By. Adel (T.). 

 ,, cylindrus Ehr. CuUingworth (W.). 

 „ Ralfsii De By. Adel Bog (T.). 



