CONTENTS. 
CHAPTER XI.—GASTEROPODES, 
APLYSIA DEPILANS, 
DORIS, : 
Section I.—Trrronta, 
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1.—TrirontA HomMBERGHI, 
2.—TRITONIA CERVINA, 
Section II.—Tritronta, 
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1.—TRITONIA PINNATIFIDA, 
2.—TRITONIA PUNCTATA, 
3.—TRITONIA DIVARICATA, 
4.—TRITONIA CONIFERA, 
Section I1.—Dorts, 
1.—Doris VERRUCOSA, . 
2.—DorIs ARGO, 
3.—DorIs Noposa, 
4.—Doris CRISTATA, 
5.—DoriIs CLAVIGERA, 
Section II.—Eouts, 
1.—Eo.Lis PLUMATA, 
2.—EoLtis RACEMOSA, 
3.—Eo.is MINOR, 
4,—Ko.is DEAURATA, 
5.—EOLIs VIRIDIs, 
6.—EOLIs SANGUIFER, 
7.—EOLIS CONSPERSA, 
8.—EoLIs INEQUALIS, 
9.—EOLIS MONOCEROS, 
10.—EOoLIs TENAX, 
11.—Eo.LIs HYSTRIX, 
12.—EoLIsS PURPUREA, 
13.—EoLis PAPILLOSA, 
EoLiIs VENTILABRUM, 
LIMAPONTIA, 
THE NAUTILINE, 
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