RESEARCHES IN HELMINTHOLOGY AND PARASITOLOGY. 1 5 



by that albuminoid fluid found in all young vegetable cells and de- 

 nominated protoplasma by H. von Molil. 



The clear granules are minute, yellowish and resemble fine oil 

 globules. They are turned deep brown by the action of iodine. 



The clear globules appear to consist of a delicate vesicular mem- 

 brane probably derived from the primordial utricle, filled with 

 colorless fluid. 



No circulatory or other movement as in Achyla prolifera, exists in 

 the cell contents. The end cells of the full-grown individuals are 

 usually two in number, and much shorter than the parent cell. 

 Occasionally I have found three end cells, more frequently- but one. 

 Tlie.se cells are formed by the parent cells, by a contraction first 

 taking place in the contents with the primordial utricle, a partition 

 from the permanent cell wall forming afterwards. 



The end cells are probably spore cases ; their contents are usually 

 a dense mass of fine granules, similar to those of the parent cell, with 

 a few intermingled globules. I never .saw an}- movement, either 

 molecular or other, in the contained matter, except during decom- 

 position. 



A question may arise as to the true situation of this plant among 

 the cryptogaraia. I have placed it in the order Confervaceae, from 

 the diagnosis given by Endlicher, in his Genera Plantaruni : " Fila 

 capillaria, membranacea v. filamentosa, intus v. extus articulata, 

 simplicia v. ramosa, libera (/. e. haud in frondem coalita), interdum 

 tamen reliculatim contexta, viridia v. rarius fusca aut purpurea, in 

 formis infimis hyalina, etc." 



Cladophytiim /-"■ a new genus of entophyta allied to the Mycoder- 

 mata. Filaments minute, attached b_v means of a roundish nucleous, 

 simple, or compound near the base of attachment, with minute lateral 

 ramuli, inarticulate, and with no evidence of interior structure. 



Cladophytutn comatum. — Filaments delicate, regular, colorless, 

 simple, more frequently branched near the base at very acute angles, 

 growing in more or less dense bunches from a yellowish rounded or 

 oval, attached, nuclear body varying in size from i-75ooth to i-6ooth 

 of an inch. Lateral ramuli very minute, measuring in length from 

 I -1 5000th to I -3000th of an inch, and passing off at acute angles. 

 No indication of articulation or interior structure. 



Length from i -666th to i- 120th of an inch. 



Habitat. — growing more or less profusely from the mucous mem- 

 brane of the small intestine of Juliis marginatus, occasionally from 



* Cladophytum : — /i/a«»v' ^t <fUTi>v. 



