130 CATALOGUE OF THE ZOOPHYTES OF 



kindly sent me a drawing, is very similar to tliis, if not iden- 

 tical. 



15. RETICULARIA, WijviUe Tliomson. 

 1. R. SERPENS, Hassall. 



Campanularia serpens, Hass. in Zoologist, No. 69, 

 p. 2223. Trans. Micros. Soc, v. 3, p, 163, t. 

 xxi., f. 4. 

 Reticularia immersa, Thorns, in Ann. Nat. Hist., 

 2nd Ser., V. ll,t. xvi., f. 2, 3. 

 Parasitical on the stems of Sertularia ahietina, Plumularia 

 falcata, and other zoophytes from deep water; common. 

 This zoophyte is very abundant on our coast. Scarcely a 

 specimen of Sertularia abietina can be obtained from deep water 

 that is not more or less invested with it. In its old state it 

 completely covers the Sertularia, and the cells are so crowded 

 that their character is not easily recognised. They are, however, 

 perfectly distinct from the creeping stem, oblong, and attached 

 for about one-third of their length, rising up erect towards the 

 aperture, which is slightly expanded. 



16. GRAMMAEIA Stimpson. 

 " Polypidom rectilinear, elongated, cylindrical, composed 

 '' of aggregated tubes, generally without branches, which, 

 when they occur, are of the same character as that from 

 which they spring. Cells arranged on all sides, in more 

 or less regular and equidistant longitudinal rows, giving 

 a section of the stem a star-like appearance-" — Stimpson. 



1. G. RAMOSA, n, sp. PI. VI., fig. 1 — 4. 



Polypary stout, horn-coloured, irregularly branched ; the 

 branches rising from a constricted base : cells cylindrical, 

 bending outwards to a distance nearly equalling the 

 width of the stem, with an even margin, behind which 

 they are frequently annulated with one or two lines of 

 growth; they are set in about four longitudinal rows, 

 the adjoining cells alternating, and the opposite cells 



