WEST INDIAN FRESHWATER ALG 287 
. Pievrococcus vunearis Menegh. Diam. cell. 6°2-12 p. 
ine —Bay Estate. any of the cells were angular by 
compression. The chloroplast was lobed and contained a single 
oc 
. Kutzingii, ‘sp. n. (Protococcus minor Kutz. Phycolog. 
p- 198 (in part). ? ? Pleurococcus minor (Kiitz.) Rabenh.). 
cellulis minutis, globosis vel angulari-globosis, plerumque 2—4-8- = 
in familias consociatis, et in strato tenue sos tie viride 1 m 
crasso aggregatis ; womb Sogn singulis, 9) PatistediOun 8 et 
homogeneis, sine pyrenoidibus, Multiplicatio “ella vegeta- 
tivarum divisione in oe (vel tres) directiones alternante. Diam. 
cell. 3-8-5°7 »; diam. fam. parv. (4-12 cell.) 9-16 p. " (Figs. 9-10.) 
Barbados, idee Estate ; ; ni: a yellow-green stratum about 
1 mm. in thickness, with a species gbya 
The small size of the cells aud their yellow- seg colour at 
once distinguish this species from P. vulgaris Menegh. The cells 
when solitary are globose, but in the small families - two, four, or 
eight cells they are generally somewhat angular by compression. 
The cell-wall is firm and of some appreciable thickness. There is 
only one sais cat in each cell, of a pale-green colour and quite 
homogeneous. It is parietal and relatively massive, occupying a 
large part of the cell, and it contains no pyr enol 
Un the name of ‘“* Protococcus minor,’ ’ Kiitzi zing egret a 
number of minute unicellular alge the specific identity of which 
has long been questionable. It is now generally understood that a 
am proportion of Kiitzing’s figures refer to a blue-green alga 
ich has come to be known as “ Chroococcus minor (Kiutz.) Nag.” 
Soni of his drawings, rough though they are, clearly refer to 
chlorophyceous alge, and I think it pSainmely probable that they 
include the species found in the Wes 
37. ProtopeRMa viripE Kiitz. < ong. ¢ ace 3°8-9°6 »; lat. cell. 
2°3-3°6 ». Barbados.—Bridgetown ; epiphytic on Chara sp. Th 
- colonies were very small, containing not more than Het 18 to. 
" = SceNEDESMuS oBLiquus (Turp.) Kiitz. Barbados. — Bay 
state 
39. 8. quapricaupa (Turp.) Bréb. Barbados.—Bay Est 
Var. ELLIPTIcum W. & G. S. byt Long. cell. ips ae au lat. 
cell. 48-5 », Barbados—Bay Estate. This is a 4-celled variety 
with ellipsoidal cells and a charac beriatie arrangement of the long 
bristles. It has only previously been recorded from Madagascar. 
40. 8. penricuLatus en var. LINEARIS Hansg. Trinidad,— 
Pools on a Pitch Lake, La B 
41. OooysTis soLITARIA ‘ieee Barbados.—Near Bridgetown. 
42. Palmelloco ermalis, sp. F 
lobo ose, minute ; er a parietalibus 2-8, intense viri- 
