MOLLUSCA. 647 
reduces the number of the species, The genera adopted by him 
are the following : — 
Tribe I. Trochitina. 
1. Trochita (Schumacher), 1 sp., radians (Desh.), 
2. Clypeola, gen. nov., Cl. magellanioa— Trochita clypeolmn of Reeve | Cl. 
tenuis^ sp. n., New Zealand ; Cl. corrugata— Trochita corrugata of Reeve. 
3. Trochella, gen. nov : Calyptrcca maculata (Quoy) and Trochus calyp~ 
trceformis (Lam.). 
Tribe II. Cryptaina. 
4. Crepipatella (Less.), 4 sp., type Crepidula dilatata (Lam.). 
6. Crypta (Ilumphr.), 7 sp., among which aculeata (Qmel.) and porcel- 
lana (L.), the first including two, the other five species of Broderip and some 
others of Nuttall, Reeve, &c. 
6. Garnotia (Gray), with adunca (Sow.). 
Tribe III. Ergjeina. 
7. Ergcea (Ad.), with walshii (Hermannsen). 
8. Nokia, gen. nov., with chincnsis, sp. nov., p. 740, 
Tribe IV. Mitrelltna. 
9. Mitrella, 4 sp., type chinensis (L.). ‘ 
10. Trochilina, gen. nov., with conica fastigiata (Gould), adspersa 
(C. B. Adams), mamillaris (Brod.), solida (Reeve), lichen (Brod.). 
11. Pocidina, gen. nov., with unguis (Brod.), poculum (Reeve), aurita 
(Reeve). 
Tribe V. 
12. GaleruS (Humphr., Ad.), with extinctorium (Lam.) and lividus (Reeve), 
Tribe VI. 
13. Neleta, gen. nov., with serrata (Brod.). 
14. Trelania, gen. nov., with radiata (Brod.). 
16. Catillina, gen. nov., pectinata (Carpenter). 
16. Dispotea (Ad.), with striata (Ad.). 
17. Crucihulum (Schumacher), 6 sp., t 3 >pe scutellatum (Gray) with nu- 
merous synonyms. 
Tribe VII. Calyptrina. 
18. Calyptra (Humphr., Ad.), 7 sp,, among which equestris (L. P) and^cc^wm- 
sinense (Chemn.). 
Golems contortus, sp. n.. Carpenter, Proceed. Calif. Acad. Nat. Sc. 1866, 
p. 216, Monterey. 
Crepidula grandis (Midd.), Gulf of Tartary, well distinguished from Cr. 
pallida (Brod.), Schrenck, 1. c. p. 383. — Cr. walski (Reeve), Bay of Yedo. 
Lischke, Mai. Blatt. xiv. p. 172. 
Crepidula deshay esii, sp. n., Folin, M6l^agrinicoles, p. 28, pi. 4. figs. 9-10, 
on pearl-oysters from Panama. 
Capulidas. 
Capulus violaccus, sp. n., Angas, Proc. Zool. Soc. 1867, p. 114, pi. 18. fig. 23, 
Port Jackson. — Capulus liheratus, sp. n.. Pease, Am. Journ. Conch, iii. p. 284, 
pi. 24. fig. 2, Paumotu. 
Amathina nohilis, sp. n., A. Adams, Proc. Zool. Soc, 1867, p. 312, pi. 19. 
fig. 27, Cape Notoro, Island of Saghalien. • 
Ilipponyx australis (Lam.), from Hakodate. Schrenck, 1. c. p. 383. 
