MOLLUSCA. 
20 &, 
1. Apertiira inter columellam et labrum emarginata. Alcadia, 39 species. ’ 
2. Apertura fere integra, supra et infra sinuatim cuneata, operculo biros- 
trato. Genus Schasicheila (Shuttl.), 3 species. 
3. Labro supra et infra tumido, sinuate. 12 species. 
4. Liratae [lyratae], labro sinuoso, supra et infra dentate. Lucidella 
(Swains.), 4 species. 
6. Trochiformes, solidae, spiraliter liratae. 28 species. , 
6. Conicae, laeves. 16 species. 
7. Rotundatim depresses. 30 species. 
8. Globosae, [vel] subglobosae. 48 species. 
9. Angulatim depresses. 39 species. 
10. Medio carinatae. 51 species. 
All together 270. New seem to be H. crassicostata, fig. 97, near [Trochatella] 
viryinea (Lea), suhlurrita, fig. 186, suhconica, fig. 226, alta^ figs. 261, 262, 
forbesianUf fig. ^4,4:^ fumigata^ fig. 346, suhovalis, fig. 376, tecta, fig. 434. Un- 
fortunately no locality is given for any of the species. 
Helicina nuda and pfeifferiana, sp. n., Pfeiffer, Mai. Blatt. xiii. pp. 63, 64, 
from Cuba. — Helicina circumlineata, sp. n., Tryon, Am. Journ. Conch, ii. 
p. 305, pi. 20. fig. 13,guano-islandof Navassa, West Indies. — Helicina paivana, 
himieyana^ smithiana, sp. n., Haiti, momsoniana, sp. n., Turks Island, Bahamas, 
hotteriana, sp. n., Mexico. Pfeiffer, 1. c. pp. 89-91. 
Helicina pacijica (Pease, 1866) figured Am. Journ. Conch, ii. pi. 6. fig. 9. 
— Helicina diversicolor, sp. n., Cox, Proc. Zool. Soc. 1866, p. 376, Queensland 
and Upper Richmond River, Australia. 
Trochatella regina (Morelet) and Helicina emoda (Pfr.), from Cuba, 
Trochatella mouhoti (Pfr.), from Siam, Lucidella sulcata (Weinland), from 
Haiti, and Helicina maemurrayi (Pfr.), from Trinidad, figured in Pfeiffer’s 
Novit. Conchol. vol. ii.pl. 64. 
Order SOLENOCONCH.^. 
JDentalium ahyssorwm (Sars, 1858) = entalis, var. /3, of Lov^n, Ind. Moll. 
Scandinav. = tarentinum in the catalogues of Asbjornsen and Malm, is de- 
scribed and figured by Dr. Mich. Sars, Fossile dyrelevninger fra quatemoer- 
perioden, 1866, p. 42, pi. iii. figs. 100-109. 
Siphonodentalium vitreum (Sars) figured ibid. fig. 99. 
Helonyx (Stimps.). T. A. Conrad, in a paper on American fossil shells, 
Am. Journ. Conch, ii. p. 76, identifies this name with Gadus, Montagu? 
Rang, 1829,” including three eocene species from Paris, three American 
(miocene), and two living — gadus (Montagu) and clavatus (Gould). He 
states himself that Montagu did not use this name as generic. [At aU events 
the name Gadus cannot stand for any other genus of animals than for the 
well-known genus of fishes. Gray introduced for the same shell the name 
Gadila Genera of Recent Mollusca,” Proc. Zool. Soc. 1847, p. 169). Morch, 
in his critical revision of Serpulidee (Naturh. Tidskr. Kjobenh. 1863), men- 
tions an observation made by Berkeley, showing that the Dentalium gadus 
(Mont.) belongs to an Annelid, and not to a Mollusk.] 
