SCATOLOGICAL STUDIES OF THE BIVALVIA (MOLLUSCA)
351
The pellets from an animal with shell 2.73 em long average 0.16 mm in
diameter.” (Arakawa, 1963, p. 206.) (Pellet-type 11-4).
Remarks: This species has been described by the author under the
name of Tapes (AmygdaZa) semidecussata Rve.
109. Pitar (Agriopoma) noguchii Habe
The pellets are rod-shaped, somewhat sandy in appearance and
round in section. They are built up from rather coarse detritus containing sand grains (Pellet-type 11-4).
Locality : Tomioka, Kumamoto, Japan.
Measurements: Pellets shed by a specimen with a shell 14.5 mm long
are 0.46 mm broad.
1 10. Paphia vernicosa (Gould)
Faecal rods in this species are chapped by many occasional clefts
and are usually voided broken into much shorter pieces (1-5 to 3.0 times
as long as the breadth of the pellets). They are very fine in texture and
greenish-grey in colour (Pellet-type 11-4).
Locality : Mukaishima, near Onomichi, Hiroshima, Japan.
Measurements: Breadth of pellets shed by an animal with a shell
49.0 mm long is on average 0.6 mm.
11 1. VeremoZpa micra (Pils.)
Pellets are discharged in the shape of a plain rod with a circular
section. They are formed from coarse detrital matter (Pellet-type 11-4).
Locality : Tomioka, Kumamoto, Japan.
Measurements : Breadth of the pellets fluctuates between 0.09 and
0.16 mm for an animal with. a shell 9.0 mm long.
112. 7. minuta (Yokoyama)
type 11-4).
Locality : Tomioka, Kumamoto, Japan.
Measurements : Breadth of the pellet is 0.11 mm for a specimen with a
shell 5.8 mm long.
The above description may also be applied to this species (Pellet-
351
The pellets from an animal with shell 2.73 em long average 0.16 mm in
diameter.” (Arakawa, 1963, p. 206.) (Pellet-type 11-4).
Remarks: This species has been described by the author under the
name of Tapes (AmygdaZa) semidecussata Rve.
109. Pitar (Agriopoma) noguchii Habe
The pellets are rod-shaped, somewhat sandy in appearance and
round in section. They are built up from rather coarse detritus containing sand grains (Pellet-type 11-4).
Locality : Tomioka, Kumamoto, Japan.
Measurements: Pellets shed by a specimen with a shell 14.5 mm long
are 0.46 mm broad.
1 10. Paphia vernicosa (Gould)
Faecal rods in this species are chapped by many occasional clefts
and are usually voided broken into much shorter pieces (1-5 to 3.0 times
as long as the breadth of the pellets). They are very fine in texture and
greenish-grey in colour (Pellet-type 11-4).
Locality : Mukaishima, near Onomichi, Hiroshima, Japan.
Measurements: Breadth of pellets shed by an animal with a shell
49.0 mm long is on average 0.6 mm.
11 1. VeremoZpa micra (Pils.)
Pellets are discharged in the shape of a plain rod with a circular
section. They are formed from coarse detrital matter (Pellet-type 11-4).
Locality : Tomioka, Kumamoto, Japan.
Measurements : Breadth of the pellets fluctuates between 0.09 and
0.16 mm for an animal with. a shell 9.0 mm long.
112. 7. minuta (Yokoyama)
type 11-4).
Locality : Tomioka, Kumamoto, Japan.
Measurements : Breadth of the pellet is 0.11 mm for a specimen with a
shell 5.8 mm long.
The above description may also be applied to this species (Pellet-