Royal Microscopical Society. 51 
bases. Uncini hooked, serrated ; very numerous. Specimen in 
cabinet of R. M. S. 
Haliotidje. Haliotis, No. 15. — Hab., rocks at low water; 
only found on one occasion, but more plentiful in other places. 
Specimens were five and sis inches across; animal weighed 14 oz. 
without shell. 
Palate very large and fine, oo . 5 . 1 . 5. oo . Median small, reflexed. 
1st lateral subtrapezoidal ; upper edge reflexed. 2nd, reflexed. 
3rd, with large tooth, very rugose. 4tli and 5th, similar but 
smaller. Uncini hooked, finely serrated ; numerous. I have 
reckoned the 3rd, 4th, and 5th laterals to be such as they are, very 
different from the Uncini. Specimen in cabinet of R. M. S. 
Fissurellid^. Emaryinula, No. 29 (Hemitoma ?). — 
Liberty cap limpet. Hab., rocks near low water ; not common ; 
very delicate, ribbed, white shell. 
Palate, oo . 5 . 1 . 5 . oo . Median and laterals broad, slightly 
reflexed, crenated ; basis overlapping to a small extent. 1st Unc. 
very large, with large irregular tooth ; others small, hooked ; 
numerous. 
Calyptreada:. Pileopsis, No. 28. — Hab., parasitic on Turbo, 
never found by me in any other position ; it sometimes bears 
small ones parasitic on itself ; it nurses its young, which have 
spiral shells, and wears away the shell of its host slightly. 
Palate, 3.1.3. Median reflexed, denticulated, middle one 
very long. 1st lateral denticulated, one of which is produced into 
a long tooth. 2nd and 3rd partially reflexed and denticulated ; 
2nd but slightly. Specimen in cabinet of R. M. S. 
Patellidje. Patella, No. 3. — Large striped limpet, one to 
two inches across, occasionally larger. Hab., rocks near low 
water. Shell pearly inside ; radiating stripes of dark colouring. 
Palate very long, from five to six inches even in the smaller ones. 
3. — .3. 1st lateral reflexed, apparently articulated. 2nd lateral 
reflexed, bifid at extremity. 3rd indistinct, probably two small 
teeth. Specimen in cabinet of R. M. S. 
Patella, No. 21. — Small deep limpet, not common. Hab., 
near low water. 
Palate, 3. — .3. 1st lateral, long tooth at top, with a basal 
tooth. 2nd ligulate. 3rd very small, and apparently composed of 
two very small teeth placed close to the base of the 2nd. Specimen 
in cabinet of R. M. S. 
Patella, No. 25 (longicosta ?). — Not common ; porcellaneous 
inside ; shell ribbed, but not quite so prominent as Woodward’s 
drawing of P. longicosta. Hab., near low water. 
