GASTROPODA (sCUTIBRANCHIa). Moll, 53 
Trochus (Gihhula) scamnatus, sp. n., Fischer, J. de Conch, xxvi. p. 66, 
Oceania. 
Gihhula appressa, sp. n., Hutton, J. de Couch, xxvi. p. 34, New Zea- 
land. 
Margarita (licach). Monograph by Sowerby in the continuation of 
Reeve’s Conch. Icon. pts. 340 & 341, 3 pis., 27 species. M. maxima, 
sp. n,, fig. 24, locality unknown. M. sandwichiana, pulcherrima, punctata, 
carinata, aspecta, and triangulosa (A. Ad.), figs. 8, 11, 14, 22, 25, & 26, 
and zelandica (Hutton), fig. 17, apparently not before figured. 
Margarita groenlandica (Chemn.) var. laevigata (Moller), var. riidis 
(Morch), var. n. intermedia, M. cinerea (Couthony) var. grand, is (Morch), 
argentata (Gould) var. n. gigantea and ohscura (Couth.), var. n. inter- 
media, and var. n. cinereceformis \cinereif-'\ Novaya Zemlya, Leche, Sv. Ak. 
Handl. xvi. 2, pp. 40-45, argentea var. gigantea, pi. i. fig. 11, ohscura var. 
intermedid, pi. ii. fig. 25. 
Margarita olivacea (Brown) = argentata (Gould), and M. cinerea 
(Couthony) var. typica and var. grandis = striata (Brod. & Sow.), Sars, 
Moll. arct. Norveg.,‘pp. 134 & 136, pi. ii. fig. 6, pi. ix. fig. 1, & pi. xxi. 
figs. 4 & 6 ; radula, pi. iii. figs. 7-11 ; operculum of M. grcenlandica 
(Chemn.), pi. xviii. fig. 4. M. helicina (Phipps) : very young specimens 
described, id. 1. c. p. 132, pi. xxi. fig. 3, under the name Delphinoidea ser- 
puloides (Mont.) ; this error corrected, p. 345. 
Machceroplax (Friele) ohscura (Couth.), hella (Verkriizen), alhula 
(Gould), and varicosa (Mighels) ; id. 1. c. pp. 137-139, pi. ix. figs. 2-5 ; 
radula of the two latter, pi. iii. figs. 12 & 13 ; operculum of the last, 
pi. xviii. fig. 5. 
Modleria costulata (Moller), id. 1. c. pp. 127 & 343, pi. v. fig. 8, pi. xxxiii. 
fig. 4 ; radula, pi. iii. fig. 5 ; operculum, pi. xviii. fig. 2. 
Rotella (Lam ). Monograph by Sowerby in the continuation of 
Reeve’s Conchologica Iconica, pts. 340 & 341, 4 pis. 20 spp. R. infra- 
planata, sp. n., fig. 10, locality unknown. R. depressa and zealandica (A. 
Adams), figs. 2 & 11. 
Rotella (Ethalia) striolata, Candida, perspicua, hrazieri, and polita (A. 
Adams) ; id. 1. c. figs. 13-17. 
Cyclostrema hasistriatum, rugulosum, Icevigatum, and trochoide (Jeffreys, 
MS.), spp. nn., with var. petterseni (Friele) and areolatum, sp. n., Sars, 
Moll. arct. Norveg. pp. 128-131, 344 & 345, pi. viii. figs. 8 & 9, pi. xxi. 
figs. 1 & 2, pi. xxxiii. figs. 5 & 6 ; radula of the first, pi. iii. fig. 6 ; operculum, 
pi. xviii. fig. 3. C. serpuloides (Montagu), note on its radula ; id. 1. c, 
p. 346. 
Cyclostrema tatei, sp. n., Angas, P. Z. S. 1878, p. 862, pi. liv. fig. 10, 
South Australia. 
Circulus formosissimus, sp. n., Brugnone, Misc. Mai. i. [1873] p. 12, 
figs. 21 & 22, Trapani, = Cyclostrema Jeffrey si (Monterosato) , which was 
only named, not described ; id. op. cit. ii. [1876] p. 25. 
Adeorhis fragilis, sp. n., Sars, Moll. arct. ^orveg. p. 213, pi. xxii. 
fig. 19, Lofoden Islands, 60-80 fath. 
