322 NATURAL HISTORY OF 



Sertularia uva {Linn., E. and S., Jameson, &c.), S. 

 acinaria (Pallas), S. cuscuta (Linn., Pallas, E. and 8., 

 Lamx., Fleyn., he), Clytia uva [Lamx., Temp.), Cam- 

 pan ularia ovifera {Be BL), Valkeria cuscuta {Flem., 

 Farre, Ealyell, G. J., D. L., Smitt, Joliet), Nigellas- 

 trum cuscutum (OJcen), Vesicularia cuscuta {Thompson), 

 Cuscularia cuscuta {De Bl.). 



Hab, : Widely distributed. 



There are two varieties of this species, one repent 

 and the other erect. The former is the '' Grape 

 Coralline '' of Ellis, the latter is named by him *' The 

 Climbing Dodder-like Coralline " (Ellis, Corall.,27,28). 

 The erect form attains a height of from 2 — 4 inches. 

 The stem is jointed and branched, and the cells, which 

 are slender and transparent, are borne in clusters at 

 the joints like bunches of grapes. Eespecting the 

 repent form {uva), Ellis writes : — " Each vesicle has a 

 black spot in it like the spawn of frogs, or rather* 

 these look, when they are magnified, like a bunch of 

 full-ripe transparent oval-shaped grapes with the stones 

 in them. To my sui-prise,^^ he adds, ''under my 

 magnifying glasses those grape-like bodies were a 

 cluster of polyps, each having eight claws very lively. 

 What we discover as a spot is only the intestines of 

 the polype with its food in it." 



2. Y. TREMULA, EincliS. 



Campylonema tremulum {T. H.). 



Hab.: Devon {T.E). 



A minute species with tapering cells. 



FAMILY IX. MIMOSELLID^. 



Zooecia contracted heloiv, movable, deciduous, ivith an 

 aperture on the ventral side. — T. H. 



