MOLLUSC A— GASTEROPODA 
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Lea, in the Proceed, of the Amer. Philosophy Soc. 1841, p. 31, gives 
the diagnoses of nine Succinece: S. gracilis, from Java; wardiana, 
from Ohio ; totteniana, from Newport ; nuttaliana, from Oregon ; 
aurea, from Ohio; candeana, from Martinique, which is perhaps S. 
haliotidea, Mittre (Rev. ZooL 1841, p. 65) ;fiilgens, from Cuba, perhaps 
S, sagra, D’Orbigny; oregonensis, from Oregon; and injiata, from 
South Carolina. 
In the Rev. ZooL 1842, p. 1, is to be found an Essai d’un 
Arrangement de plusieurs Mollusqiies dii genre Helix, selon 
les lois de leurs variations specifiqiies, par Cli, Porro.” 
The author regards the following as varieties of one species ; — Heluc 
carseolana, F^r, ; circunwrnata, F^r. ; companyoni, Anton; erycina, 
Jan. ; gldbiilaris, ZiegL ; grohmanniana, Phil. ; gualteriana, Fer. ; 
hispanica, Partsch (non. Lam.); hospitans, Bonelli; marmorata, Fer.; 
melitensis, F^r. ; muralis, Miill. ; nehrodensis, mandralisca, niciensis, 
Fer. ; paciniana, Phil. ; Raspailli, Payr. ; segestana, Phil. ; serpentina, 
F4r, ; signata, F^r. ; splendens, Drap. 
Mittre describes three new species of the genus Helix in the Annal. 
des Sc. Nat. xviii. p. 188 ; — H. minoricensis ; testa orbiculato-convexa, 
imperforata, glabriuscula, albida aut lutescente, superne maculis fuscis 
interruptis, inferne aliis fasciam fingentibus; anfractibus 5 convexius- 
culis, spira prominula, apice fusco ; labro inargine reflexo ; fauce pallide 
rosea, columella subdentata ; : Minorca. H. telonensis ; testa sub- 
depressa aut convexiuscula, cornea tenui, pellucida, subtilissime striata ; 
anfractibus 5 convexis, ultimo majore, apertura rotundata, peristomate 
acuto, simplici, umbilico magno ; 4'" : Toulon. H. Nyeli ; testa orbi- 
cular!, carinata, superne depressa subtus convexa late umbilicata, sub- 
tilissime striata, grisea vel lutescente, supra maculis fuscis, infra duobus 
fasciis ornata ; apertura angulata, labro albo, tenui, intus marginato, 
subreflexo ; 5 "' : Minorca. 
Souleyet has characterized three new species of the same genus in the 
Rev. Zool. 1842, p. 101 ; — H. Chevalierii ; circular, deeply umbilicated; 
keel slight, brown, with a chestnut band ; 37 mill. ; Malacca. JT. Baron- 
deauii ; circular, with a keel ; olive brown, obliquely wrinkled, striped 
crossways ; 41 mill. ; Lu9on. H. touranensis ; conical, umbilicated, thin, 
closely striped, bright brown ; 16 mill. : Cochin-China. These three 
species have been figured in the “ Zoologie du Voyage de la Bonite.” 
Le Guillou has increased the number of the species of the genus Helix 
by twenty-six, for the diagnoses of which we refer to the Rev. Zool. 
1842, p. 137. Their names are as follows: — H. unibilicata, Sumatra; 
suhgranosa, N. Australia ; Nouleti, Viti Islands; recluziana, habitat 
unknown; Jdnnellii, N. Australia; salomonis, Salomon Islands; deles- 
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