CALYCELLA. 205 



5. L. FYGMjEA, Alder, MS. 



Plate XL. fig. 3. 



STEM creeping; HYDROTHEC.E very minute, cylindrical, 

 elongate and narrow, of a yellowish horn-colour, borne 

 on very short, ringed pedicels (2 or 3 rings}; GONOTHEC^E 

 unknown. 



THIS form was discovered by the late Mr. Alder, and named 

 by him in manuscript, but never published. It is extremely 

 minute ; the calycle is a narrow cylinder rounded off below 

 and borne on a very short pedicel. In some of Mr. Alder's 

 figures there are traces of a slight and shallow operculum ; 

 but I have not been able to distinguish one in the speci- 

 mens which I have examined, and must leave it to other 

 observers to decide the point. If it be an operculated 

 species, it must be transferred to the following genus. 



Hab. Tynemouth (J. A.): Gouliot Caves, Sark, in pro- 

 fusion (A. M. N.). 



Genus CALYCELLA, Hincks (in part). 



Der. A diminutive formed from K\JI, a cup. 

 CAMPANULARIA, Lamark (in part). 



GENERIC CHARACTER. Stem a creeping tubular fibre, or 

 erect, compound, and branched, rooted by a filiform stolon ; 

 hydrothec<e tubular, with an operculum formed of convergent 

 segments or a plaited membrane ; polypites cylindrical, with 

 a conical proboscis. Reproduction by means of fixed sporo- 

 sacs, which (in the female] become extracapsular before the 

 liberation of the ova. 



THIS genus, as originally constituted*, had a much wider 



* "Cat. of South Devon and Cormv. Zooph.." Ann. N. H. (.'3rd ser.) viii.203. 



