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Journal de conchyliologie

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— 330 —<br />

Habitat in prou. Gabon. Helici fulvœ persimilis ; differt<br />

spira macfis <strong>de</strong>pressa, et anfractuum numéro minore; ab<br />

H. parvula, Rang, statura, anfractuum numéro et perfo-<br />

rât ionis <strong>de</strong>fectu distinguitur.<br />

Ô. ACHATINA (StENOGYRA) DECOLLATA.<br />

T. <strong>de</strong>collata, tenuis^ cylindraceo-lurrita, virenti-cor-<br />

îiea, pellucida, nitens, strigis obsoletis, irregularibus<br />

oblique notata; sutura in anfract. prioribus testœ integrœ<br />

minutim <strong>de</strong>nticulata, in cœteris submarginata ; anfr.<br />

superst. 5 1/2 planiusculi, leviter contabulati, ultimus<br />

peripheria obtuse angulatus , longitudinis 2/7 œquans ;<br />

columella arcuata, oblique truncata; apertura mediocris,<br />

acute ovalis, marginibus simplicibus, redis.— Longit. 30,<br />

diam. 9 mill.<br />

Habitat cum prœce<strong>de</strong>nte.<br />

4. Ennea monodon.<br />

T. rimata, oblonga, vix striata, Juxta suturam brevi-<br />

ter et obsolète plicata, nitida, hyalina; spira sensim<br />

attenuata, apice obtusiuscula ; anfr. 8 parum convexi,<br />

ultimus leviter ascen<strong>de</strong>ns^ dorso obsolète costulatus, basi<br />

attenuatus; apertura truncato- ovalis, <strong>de</strong>nte parietali<br />

parvo, compresso, prope insertionem marginis <strong>de</strong>xtri mu-<br />

nita; perist. obticsum, margine externo flexuoso, medio<br />

ungulatim producto, columellari arcuato^breviterreflexo.<br />

— Longit. 10, diam. 4 mill.<br />

Habitat cum prœce<strong>de</strong>nte.<br />

5. Ennea bicristata.<br />

T, oblique rimata, sabfusifonnis. albula, crgslallina,<br />

plicis disiunlibus, aabrcciis ornala ; anfr. S coiivexiasciiU,

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