TRITICELLA PEDICELLATA. 547 



Triticella PEDICELLATA^ Alder. 



Plato LXXX. figs. 3-5. 



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

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



Zocecia 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. 



Polyjnde with 12 tentacles. 



Length of cell -^-^ 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 Avill of the animal." 

 — Alder. 



Habitat. On old shells from deep water. 



Locality. Northumberland, on Buccimim undatum 

 and Fusus antupms (Alder) . 



2n2 



