of South Devon and South Cornwall. 25 
3. Ai. recta, n.sp. Pl. VII. fig. 3. 
Cells long, nearly straight, truncate at the extremity; surface 
coarsely ringed below, the upper portion punctulate ; aperture 
elongate, not dilated. 
Abundant on shells and other submarine bodies: Torbay ; 
Salcombe ; from 60 fathoms off the Deadman, &c. 
In this species the creeping base is composed of a series of 
fusiform expansions, connected by a delicate thread of variable 
length, and closely resembling the cells of a Hippothoa. They 
are regularly formed, enlarged and rounded at one end, and 
pointed at the other. The cells are placed at the extremity of 
. the larger end; they are straight or a little curved, long, trun- 
cate, very slightly enlarged above; surface ringed below—more 
coarsely than in 4. anguina,—covered with minute punctula- 
tions above; aperture elongate, occupying a large proportion of 
the length of the cell. 
4H. anguina may be at once distinguished from the present 
species by its bent and spatulate cell.. It is also of inferior 
s1ze. 
There cay be little doubt that Mr. Couch’s Hippothoa sica 
(Corn. Faun. ii. 102, pl. 19. fig. 8) was founded on specimens 
of this species in which the cells were broken off or only par- 
tially developed. His description applies exactly to tea recta 
in this state. Indeed, when stripped of its cells, or with 
only a small portion left, forming a tubular aperture at the ex- 
tremity of the clavate expansions, it is undistinguishable from a 
Hippothoa*. The mode of branching is the same as in the 
latter genus, the branches being given off from the sides of the 
cells. tea recta is abundant on the coast where Mr. Couch’s 
investigations were carried on. 
[Isle of Man, dredged on shells; Lamlash, Arran.] 
4, Branta, Johnston. 
B. mirabilis, Johnst. 
Common: creeping amongst Bugula turbinata, rock-pools, 
Exmouth ; on Laminaria-roots, Salcombe Bay; on stones be- 
tween tide-marks, Torquay, &c. 
[Ramsay, Isle of Man, on weed; off the coast of Antrim, on 
shell ; Lamlash.] 
* The upper portion of the cells of 4, recta is very commonly broken 
off a little below the base of the aperture. 
