GASTEROPODA OP1STHOI3RANUHIATA. 
Moll. 39 
GASTEROPODA OPISTHOBRANCHIATA. 
General. 
Opisthobranchiata : list of Plymouth forms ; Garstang. 
OPISTHOBRANCHIATA NUDIBRANCHIATA. 
General. 
Cerata ; Herdman & Clubb. 
Structure and functions of the Cerata ; Herdman. 
Nudibranchiata of Liverpool district ; Herdman & Clubb. 
Nudibranchs of Gulf of Marseilles : zoology and anatomy ; table of 
their relations, p. 19 ; Vayssiere. 
Nudibranchiata of Sunda Sea ; Bergii (1). 
Doridopsidac. 
Doriopsis broclcii, n. sp., p. 967, pi. lxxxv, fig. 1 ; D. bataviensis , n. sp., 
p. 968, pi. lxxxv, fig. 2 ; D. apicalis , n. sp., pi. lxxxviii, fig. 25, from 
Philippines ; Bergh (1). 
Doridid,®. 
Casclla rufomarginata , n. sp., p. 943, pi. lxxxv, fig. 10, pi. lxxxix, 
figs. 25-28, from Philippines ; Bergii (1). 
Ceratosoma ornatum, n. sp., p. 946, pi. lxxxix, figs. 29-31, from Philip- 
pines ; id. (1). 
Chromodoris hilaris , n. sp., p. 935, pi. lxxxvi, fig. 4, pi. lxxxvii, figs. 11- 
15 ; C. mariana , n. sp., p. 937, pi. lxxxviii, figs. 1 & 2, pi. lxxxix, figs. 18- 
22, from Philippines ; G.sannio , n. sp., p. 939, pi. lxxxvi, fig. 3, pi. lxxxvii, 
figs. 1-9, from Philippines ; id. (1). 0. scabriuscula, n. sp., p. 160, pi. i, 
figs. 11-19 ; C. punctilucens, n. sp., p. 162, pi. i, figs. 4-10 ; C. sycilla , n. sp., 
p. 165, pi. iii, figs. 3-13, Mexico ; id. (2). G. sycilla , n. sp., pi. lxxxix, 
figs. 3-11, from Philippines ; id. (1). 
Discodoris amboinensis ) n. sp., p. 895, pi. lxxxvii, figs. 23-27, from Philip- 
pines; id. (1). 
Phlegmodoris ? anceps, n. sp., p. 169, pi, i, figs. 20-26, pi. ii, fig. 6, 
Mexico ; id. (2). 
\/phialodoris, n. g. ; P. podotria. n. sp., p. 908, pi. lxxxvii, figs. 34-43, 
Philippiues ; id. (1). 
Sphccrodoris Icevis , n. sp., p. 925, pi. lxxxviii, figs. 3-12, Philippines ; 
id. (1). 
Thordisa carinata , n. sp., p. 903, pi. lxxxviii, figs. 13-18, Philippines ; 
id. (1). 
