TRITICELLA PEDICELLATA. 547 



TRITICELLA PEDICELLATA, Alder. 

 Plate LXXX. figs. 3-5. 



FARRELLA PEDICELLATA, Alder, N. Cat. loc. cit. 68, pi. vi. figs. 1-3 ; Quart. 

 Journ. Micr. Sc. v. 24, pi. xiv. figs. 1-3. 



Zooecia ovate-oblong, transparent, scattered along a deli- 

 cate creeping stolon ; the dorsal side (viewed laterally) 

 very slightly curved outwards, the front side occupied 

 almost entirely by the membranous area, which ex- 

 tends nearly to the bottom of the cell. The zocecium 

 (viewed in front) slightly contracted at the base, but of 

 about equal width for a great proportion of its length, 

 scarcely narrowed towards the top; no angular projec- 

 tion at the lower extremity of the area. Frenaculum 

 wanting. Peduncle very slender, usually two or three 

 times the length of the cell. 



Polypide with 12 tentacles. 



Length of cell -fa inch. 



THIS is a much smaller species than the preceding, with a 

 very regularly shaped cell ; though destitute of the frena- 

 culum, it exhibits all the more important structural pecu- 

 liarities of the genus Triticella. 



"The animal, as seen through the transparent cell- 

 walls, is of a pale yellow colour, with a brownish-red patch 

 indicating the position of the stomach. The ovaries are 

 white. The base of the cell is finely wrinkled, and at its 

 junction with the pedicle it forms a kind of joint, which 

 can be more or less twisted at the will of the animal." 

 ALDER. 



HABITAT. On old shells from deep water. 



LOCALITY. Northumberland, on Buccinum undatum 

 and Fusus antiquus (Alder). 



J N '.' 



