DR. A. FARRE ON THE STRUCTURE OF THE CILIOBRACHIATE POLYPI. 413 
of the arms, and was sometimes seen to be much distended and to alter its form oc- 
casionally (fig - . 3 and 4.). 
The cardia is placed about midway between the mouth and the base of the stomach, 
the whole canal being very short. The intestine terminates in the membranous pa- 
rietes at a little distance below the ring (fig. 1. a.). The separation of the parietes 
from the cell when the animal emerges is very distinct. 
The lateral aperture in the cell is filled by the flexible membranous portion, which 
does not terminate here by setae, but has a plain margin (fig. 1. b.), forming a close 
ring round the protruding animal. The cells are met with either isolated or aggregated; 
in the latter case the growth of the young cells is seen in advance of the older ones, 
and they appear to spring from the upper and back part of the cells immediately below 
them (fig. 1. c.). The cells are often seen connected by cylindrical stems which do 
not appear to belong to them. 
PLATE XXVII. fig. 6—9. 
• 
Notamia loriculata, Flem., Brit. Anim., p. 541. Gen. lx. 158. 
Syn. Corallina cellifera mollis ramosissima, Ellts, Corall., p. 55. pi. xxi. n. 7- b. B. 
Sertularia loriculata, Linn., Gmel., p. 3858. No. 31. 
Cellularia loriculata, Pall., Zooph., p. 64. No. 22. 
Crisia loriculata, Lamx., Polyp, flex., p. 140. No. 250. 
Gemicellaria loriculata, Blainv., Diet, des Sc. Nat., Art. Zooph., p. 425. 
Loricaria Europcea, Lamx., Expos, methodique des genres de l’ordre des 
Polypiers, p. 7* * 
Fig. 6 and 7. This is a ramified species very common on the Sheppy coast. The 
arms are ten in number, ciliated and flexible (fig. 9.). The alimentary canal presents 
the usual details (fig. 8. a.) The pylorus is very distinct, and there is a considerable 
rectal enlargement. The pharynx is spotted. The gizzard wanting. 
Fig. 7. The branches, which are given off generally form opposite points of the 
main stem, are formed like it of a succession of cells, placed back to back in pairs, 
the last two or three pairs gradually diminishing in size, with a corresponding degree 
of development of the contained animals ; the terminal pair is generally very small, 
and apparently homogeneous in texture, and without a trace of its future animal 
inhabitant (fig. 8. c.). 
Fig. 8 and 9. From this position of the cells the animals cannot emerge from their 
extremities, but protrude laterally by the oval aperture in the upper part and side of 
the cell. This is closed, as in Membranipora, by a more flexible portion than that 
which forms the rest of the cell, (which is only a modified form of the flexible oper- 
culum in the foregoing species,) leaving a horse-shoe aperture for the passage of the 
tentacula and upper part of the body (fig. 9. a.). Here the process of gemmation occurs 
3 h 2 
