MOLLUSCA. 
539 
Pallia leucozona ( Phil, as Buccinnm) figured by Appelius, Bull. Mai. 
Ital. ii. pi. 4. fig. 3. 
Phos scnticosumf var. data, Issel, Malacol. mar. ross. p. 127, Gulf of 
Alcaba. 
Engina nadulosa, sp. n., Pease, Am. Journ. Conch, v. p. 71, pi. 8. fig. 11, 
Ebon isl., Polynesia. — E. lineata (Reeve), var. maculata, Pease, ibid. p. 70, 
pi. 8. fig. 12, Apaian isl., Polynesia. 
Cyrtulus (Hinds). Its dentition figured ; type of a new family, Cyj'tulidce, 
which will include also certain species of Emus, for example, F. raphanus 
(Lam.) Macdonald, Ann. k Mag. Nat. Hist. iii. p. 115, pi. 13. fig. 5. 
Busycon eliceans (Montfort) = B. gihhosum (Conrad) = Pyrula aruana 
(Reeve). Conrad, Am. Journ. Conch, v. pp. 104 and 100. 
Fulgur carica and Sycotypus canoliculatus. The ovicapsulae are described 
at length by Perkins. Proc. Bost. Soc. Nat. Hist. 1809, Oct. [Known for 
a long time through Lis ter, Ellis, &c.] 
Nassid^e. 
AW<?a (Chemnitz) living in the Mediterranean j a smaller variety 
described. Petit, Catal. Moll. Eur. p. 280. 
Nassa semistriata (Brocchi) = (Maravigna) =^w.‘?somV (Calcara)=:^n- 
fasciata (Adams). Tiberi, Bull. Mai. Ital. ii. p. 265. MediteiTanean. 
Nassa encaustica, sp. n., Brusina, Journ. Conch, xvii. p. 233, Adriatic. 
Nassa fretensis, sp. n., Perkins, Proc. Bost. Soc. Nat. Hist. Nov. 1809, 
Newhaven, allied to N. vihex (Say). 
Nassa japonica (Lischke). The name is changed by the author to N hal- 
teata. Mai. Blatt. xvi. p. 107, and Moll. Jap. p. 01, pi. 5. figs. 10, 11. 
Nassa nucea and halteata, spp. nn.. Pease, Am. Journ. Conch, v. pp. 70, 71, 
pi. 8. figs. 6 and 7, Polynesia. — N. tiarida (Kien.) is a variety of N. teyula 
(Reeve), and comes from the west coast of Mexico. Pease, ibid. p. 83. 
Nassa {Cydonassa) italica, sp. n., Issel, Bullett. Malac. Ital. ii. p. 29, 
pi. 4. figs. 4-11, Taranto and Genoa. 
Nassa (Eesmoulea) tryoni, sp. n., Crosse, Journ. Couch, xvii. p. 409, 
locality unknown. 
Olivid^. 
According to the researches of Prof. Troschel, the Olivida 
(or, as he calls them, Olivacea”), excluding the genus Harpa, 
have a broad median plate of the radula, with three or more teeth 
on the posterior margin, and triangular lateral plates with a single 
hook. In Agaronia (Gray) and Dactylus (Klein) [= Oliva 
proper] the median plate is three-toothed, the median tooth 
smaller than the others. In Olivella (Swains.) the median plate 
is falciform and many-toothed, the lateral plates rather narrow. 
In Ancillaria (Lam.) the median plate has three larger teeth, 
and between them smaller ones ; the lateral plates are sinuous. 
The author describes and figures the radula of the follow- ^ 
ing species : — Agaronia megalostoma, Dactylus undatus, peru- 
vianus, maurus, funehralis, irisans, mustclina, emicator — gutlatus, 
Imcophmus , ispididus, reticularis, Olivella gracilis, mutica, Ancilla 
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