MOLLUSCA. 
187 
L. guinaicm, Chemnitz, Lam. Western Africa. 
L. omm^ Peters. Mossambique. Var elatior^ pi. 70. figs. 7, 8. Niebohr 
River. 
L. olivaceus, Sow. (Paludina). Var. procerus^ pi. 71. figs, 1, 2 j var. am6t- 
guusj pi. 71. figs. 8, 4. Mossambique. 
L. purpureus, Jonas. Mossambique. 
X. ellipticus, n. sp., p. 294, pi. 70. figs. 9, 10. Mossambique. 
Doubtful species of Lanistes of the first section are Ampullaria intortaj^ 
(Lam.) and Amp. suhcarinata (Lam.) ; to the second section belong probably 
Paludina sinistrorsa (Lea) and Paludina gig as (Lesson). 
Capulidas. 
Hipponyx australis {Q,. G.). Teeth of the radula, Rberhard, 1. c. p. 12, pi. 5. 
fig. 107. [There are some slight differences from that of H. conicus figured 
by Troschel.J 
Naricid.®. , 
Narica fovcolata^ sp. n., Montrouzier, Journ. Conch, xiv. p. 138, pi. 6. fig. 6, 
New Caledonia. 
Order SCUTIBRANCHIATA. 
- Suborder Podophth alma. 
NERITlDi®. 
Ncrita pderonta (L.) and atrata (Gmel.). Radula of both described, and 
of one [which ?] figured by Eberhard, 1. c. p. 16, pi. 4. fig. 76. 
Neritina communis (Q .G.). Teeth of the radula, Eberhard, 1. c. p. 16, pi. 6. 
fig. 106. [This is a brackish-water species from the Indian archipelago ; 
nevertheless its radula agrees tolerably - well with that of the European 
freshwater species figured by Loven j the radula of true marine Nerita is not 
essentially different.] 
Neritina mdrchiana^ sp. n., Dunker, Verh. zool.-boL Gesellsch. Wien, I860,, 
p. 913, Madras. Nearly allied to iV Lam. — N. artensis and costu-- 
lata, sp. n., Gassies, Journ. Conch, xiv. pp. 61, 62, New Caledonia. 
Neritina cequinoctialis (Morelet) in different varieties, and N. manoeli, sp. n.,; 
from Prince Island. Dohrn, Mai. Blatt. xiii. pp. 134, 136. 
Neritina microstoma (Orb.) in fresh waters of Trinidad, N. meleagris (Lam.) 
in mangrove swamps, and N. viridisjlj., marine. .. Guppy, Proceed. Scientif. 
Assoc. Trinidad, i. p. 32. 
Navicella moreletiana, sp. n., Gassies, Journ. Conch, xiv. p. 62, New Cale-« 
donia. 
Chrysostoma nicoharicum (Gmel.), its horny operculum described by Crosse, 
Journ. Conch, xiv. p. 110, pi. 6. fig. 8. 
Trochus \^Polydonta'\ L., and TV. \_Gihhula'] divaricatus,'L., denti- 
tion described by Eberhard, p. 16, and that of the latter figured on pi. 6. 
fig. 80 ; that oi Monodonta lahio, L., ibid. p. 16, pi. 4. fig. 78; of Turbo 
[rather Trochus] pica (L.), p. 16, pi. 6. figs. 92, 93. [The fewdenticulations 
of the inner lateral teeth in this figure agree more with Lovdn’s figure for 
Trochus cinerarium than with the figures for Turbo argyrostomus or niger.] 
