290 Rev. T. Hincks's Catalogue of Zoojihytes 



that I was right in the first instance ; for although, both in 

 Eudorina and Chlamydococcus, the peripheral substance, and per- 

 haps the interior of the nucleus itself, becomes purple and blue 

 under the action of iodine, this cell must be considered the 

 nucleus, while the "granules" in the protoplasm should be 

 viewed as the analogues of the " starch-cell " in the plant-cell. 

 Thus the " green cell " of Eudorina consists of the cell-wall 

 with its two cilia, which contains the protoplasm and chloro- 

 phyll, the nucleus, the granules, or analogues to the starch- 

 grains, the " red spot," and the two contracting vesicles. Such, 

 too, is a list of the normal contents of Chlamydococcus and most 

 of these green cells. The spore-cell of Eudorina, after impreg- 

 nation {Gyges, Ehr. ?), I am led to think, has four cilia; but of 

 this more hereafter. 



Spongilla. 



At p. 13 [ibid.) there is also a mistake made in a similar 

 way, and arising from a similar cause, viz. a misgiving of the 

 truth of an inference deduced from deliberate examination, cor- 

 rected by a too short and hasty one. It is stated, respecting 

 the " ampullaceous sac " of Spongilla, that it must have its cilia 

 outside, instead of inside as in the first description. A still 

 more recent examination compels me to state that the first 

 description in this respect should stand as it is, and the cilia be 

 considered inside, and not outside, the " ampullaceous sac." 



XXXI. — A Catalogue of the Zoophytes of South Devon and 

 South Cornwall. By the Rev. Thomas Hincks, B.A. 



[Continued from p. 262.] 



8. Laomedea neglecta, Alder. 



Common : under stones between tide-marks ; dredged on 

 other zoophytes, &c, from in-shore to the Coralline region. 



This species, in its Campanularian state, is very abundant on 

 the stems of Plumularia, Sertularia, &c, from deep water. In 

 such situations, so far as my experience goes, it is seldom and 

 sparingly branched. 



From a tide-pool at Meadfoot, near Torquay, I have it of large 

 size (about an inch in height), much branched, and bearing 

 capsules. The latter, which have not yet been described, are 

 pyriform, and produced in the axils and on the pedicles which 

 support the cells. The ova are developed into the perfect larval 

 form within an external gelatinous marsupium. 



