Folliculinids of Ago Bay, Japan — Matthews 
side of Limn or id sp. living in the riddled nodes 
of abandoned bamboo poles of oyster rafts. 
Later, they were taken from the surface of 
Spirorbis sp. which formed part of the epi fauna 
of P. martensii. 
Figure 13 A is a ventral view of a contracted 
animal taken from the unrestrictive surface of 
a Spirorbis sp. shell. In such instances, the 
lorica is cylindrical and terminates in a broad 
neck (b) and wide mouth (a). No collar, spiral 
rings, longitudinal stripes, or bands are present. 
Figure 13 B is a ventro-lateral view of the 
left side of an extended animal taken from a 
restrictive surface of a Spirorbis sp. shell. Here, 
the otherwise cylindrical lorica is bent in com- 
pliance to the restricted area; otherwise the 
general proportions are the same. In no instance 
did the lorica ever stand vertically (see Silen, 
1947:48) as is usually the case in Parafolliculina 
violaceae. 
The peristomal lobes are usually equal, but 
sometimes the left (c) is slightly longer and 
perhaps broader than the right; finger-like pro- 
jections are present. The nucleus ( d ) is always 
moniliform and composed of 8 or 9 beads of 
varying size. The foot (e) is non-spatulate. 
The color varies from grey-green to bottle- 
green. The lorica may be yellowish-green to 
dark brown. 
Parafolliculina amphora Dons, 1913 (see Hadzi, 
1951:170-179, figs. 29 a-b, e-g and 
Silen, 1947:64-65, figs. 83-86). 
Parafolliculina amphora (Fig. 14) was first 
taken at Tatokushima, September 22, 1965 on 
the interzooecial boundaries of the Bryozoan, 
Schizoporella oenochros Ortman. 
The measurements of the Ago Bay material 
fall well within the limits set for this species 
by other workers. Figure 14 represents a ventral 
view of a relaxed P. amphora taken from an 
unrestrictive lorica site. The division of the 
lorica into a short neck (b), vestibule (c) with 
valves (d), and sac (e) is clearly discernible. 
Especially significant is the extent of the col- 
lectoderm (/) which holds the lorica in a hori- 
zontal position, not vertical as in P. violaceae. 
The peristomal lobes (a) are of equal size 
and length and bear short, finger-like projec- 
tions at their gradually tapering ends. The nu- 
cleus (/) is spherical. 
245 
Fig. 1 4. Parafolliculina amphora. Ventral view of 
partially extended animal showing: a, peristomal lobe; 
b, short collar; c, vestibule; d, valves; e, lorica; f, nu- 
cleus; g, extent of foot ( dotted area ) when lorica 
excessively flattened; h, foot; i, collectoderm. 
Silen (1947:25) mentions that in P. am- 
phora, "the breadth of the attachment of the 
animal varies very much; it may be broad or as 
narrow as in most Folliculinidae (Figs. 83, 
84).’’ Although Hadzi (1951:173) takes Silen 
to task for these figures, the width of the foot 
