54 CONCHOLOGIA CESTRICA. 
Sub-genus ACICULA, Risso, 1826. 
Animal of Acicula, enlarged. —[Reeve.] 
Fig, 96, 

Shell slender, elongate, turreted, imperforate, thin, 
polished; whorls 6 or 7, the last rounded at base; 
columella slightly twisted, truncated at base, aperture 
oblong, peristome simple, acute. 
A. acicula, MULLEr. 
: Buccinum acicula, Miull., Hist. Verm., IL, 
A.acicula, 
enlarged. W774. 
Shell very delicate, transparent, bluish- 
white, cylindrical; whorls 7, the last one 
more than half the whole length; aperture 
oblong-ovate. H.5, W. 1%, mill. 
Station, green-houses, and nurseries. New 
Garden, Chester County; rare. 
Oss. — An exotic species, sometimes imported with 

nursery and green-house plants. 
Sub-genus LEUCOCHILA, ALsers, ET MARTIENS, 
1860. 
Animal of Leucochila pentodon, 
Fig, 98, 
sie 
Shell cylindrical-ovate, rather obtuse, shining, pel- 
lucid; whorls 6-7 ; aperture semi-oval, mostly narrowed, 
by folds; peristome thickened, and reflexed. 
Animal, with four distinct tentacles. 
