52 
Transactions of the 
Palate, 4.. 4. 1st lateral, with basal bifid tootb. 2nd ligulate* 
very slightly reflexed. 3rd and 4th hgnlate reflexed. 
Note. — This is the only palate of the limpets which clearly 
shows four laterals. Specimen in cabinet of It. M. S. 
Patella, No. 30. — Pare ; very small deep limpet ; found by me 
only parasitic on No. 8 ; smooth, with few brown markings near 
edge. 
Palate, 3 . — . 3. 1 st lateral, with basal bifid tooth. 2nd and 3rd 
ligulate ; indistinctly divided. Specimen in cabinet of E. M. S. 
Patella ( Acmsea ?), No. 20. — Small flat limpet, not common ; 
dark brown markings. 
Palate, 3.3. 1st lateral, with basal bifid tooth. 2nd lateral 
ligulate, with a basal tooth. 3rd ligulate. These two are better 
seen in the side view. Specimen in cabinet of R. M. S. 
Siphonaria ( aspera ?), No. 27. — Nutmeg limpet. Hab., near 
low water ; rare ; but more common in other places. 
Palate, oo . 1 . oo. Median very small, laterals hooked, with 
double points. Side view gives better idea of the form than front 
view. Specimen in cabinet of R. M. S. 
CiutonidvE. Chiton spinosus, or Acanthopleura (?), No. 6. — 
One to four inches long ; common ; edges covered with spines. 
Hab., rocks near low water. 
Palate, 3. 4. 1.4. 3. Median reflexed. 1st lateral slightly 
reflexed. 2nd lateral long, with large trifid head. 3rd, ligulate, 
slightly reflexed. 4th, long, claw-shaped. Three outer ones 
(Uncini ?) flat, very slightly reflexed. Specimen in cabinet of 
R.M. S. 
Bullid^i. Bulla ( oblonga ?), No. 47. — Hab., below low- 
water mark ; only found alive in enclosure for graving dock ; has 
three chitinous gizzard teeth. 
Palate, 3.1.3, very large. Median broad, with a small central 
denticulation, and eight large lateral ones. 1st lateral, dark teeth, 
with light large denticulations. 2nd similar, but first denticle is 
bifid. 3rd triangular, slightly reflexed. 
Pliiline ( aperta ?), No. 23. — Hab., in sand below low water ; 
only found an occasional solitary specimen, except in enclosure for 
graving dock, where large numbers of fine ones were exposed. 
Two to four inches long, three calcareous gizzard teeth. 
Palate, 1.1. Teeth claw-shaped, denticulated on inner margin. 
Plate XXVII., Fig. 23, a shows side view ; b, front view ; c, view 
from intermediate point. Specimen in cabinet of R. M. S. 
Doridje. Doris (?), No. 16. — Hab., low water on rocks ; very 
rare. Limaeiform ; tentacles two ; simple truncated narrow cones. 
