HAR D WICKE'S SCIE NCR- G SSI P. 



201 



geneous, but as it grows older one or more dark granules* can 

 be observed in it, which are nothing else but pure eliminated 

 sulphur. 



[By the kindness of Mr. J. Levick, the President of the Bir- 

 mingham Natural History Society, I have been favoured with 

 specimens of a supposed Alga from his famous garden pond (the 

 home of so many rarities), which I at once recognised to be this 

 species. It occurred in great quantity, floating freely in the 

 water when young, but apparently sinking among the debris 

 at the bottom when old and tattered ; its beautiful peach colour 

 renders it very striking among the green Algae with which it is 

 frequently entangled. — Tr.] 



IV. Sarcina, Goodsir {extended). 



Cells roundish, dividing in two or three dimensions 

 -of space. Daughter-cells connected for some time, 

 forming small solid families or plates, which are often 

 again in their turn united to form larger colonies. 

 Families usually consisting of four or a multiple of 

 four cells. 



the higher animals ; also occurring in other parts of 

 the body. 



20. .5". iiriiiiL, Welcker. 



Merisinopcdia uriinc, Rabenh. 



Cells very small, V2 ix'in diameter, united in families 

 of from 8 to 64 ; eight-celled families 2*3 /t, 64-celled 

 4'5 fj. in diameter. 



In the bladder. 



21. S. lit oralis (Oersted). 



Erythroconis litoralis. Oersted. 



Meris/nopedia litoralis, Rabenh, 

 Cells round or, before division, oval, i'2m, seldom 

 2 or more ^ in diameter, united into families of four, 

 six, or eight, &c., which in their turn form larger 



S- "tuo »oe," '^..„o 



%OCOl' '=05.50 



■Fig. 140. —Cohnia roseo-persicina (after Cohnl. a, single cells, often subdividing, afterwards forming families surrounded by 

 gelatine; /', an older family ; c, part of i X 303; d, an old reticulate family. 



19. S. ventri^itli, Goodsir. 



Merismopedia Goods irii, Husem. 

 M. ventriculi, Robin. 



Cells roundish, united in groups of four, eight, 

 sixteen, or a few more, flattened at the points of 

 contact, forming little cubes which are rounded off at 

 the comers. Individual cells reaching 4 ^ in diameter ; 

 colonies constricted at the partition walls of the cells, 

 iinited in their turn to form larger masses. Cell- 

 contents greenish, yellowish to reddish-brown, faintly 

 sparkling. 



In the stomach of healthy and diseased persons, and 



• The granules are the "loculi" of Lankester, and the 

 ' spores " of other authors. — Tk. 



Fig. 141. — a, a small family rather broken up ; i5, a young 

 group; c, the cells. From Mr. Levick's specimens. 



colonies (as many as 64 groups of four in a colony). 

 Plasma colourless, but in each cell from one to four 

 red granules of sulphur. 

 In putrefying sea-water. 



22 .S". Reitenbaehii (Caspary). 



Merismopediiim Reitenbaehii, Caspary. 

 Cells round, before division ovate-elliptical, about 



