Bulletin of the Museum of Comparative Zoology at Harvard College . eter If mm. Pupa syngenes, Pilsbrt, The Nautilus, 1890, Vol. IIL p. 296, Plate V. Figs. 1, 2. Two specimens of this form are before me, and I am in doubt whether to givethem a new name, as they may be only sinistral monstrosities of the commonP. muscorum. The shells are labelled Arizona in the Academy collection, col-lector not known. (Since the above paragraphs were in type, I have received a communication frommy friend, Dr. V. Sterki, to whom I sent a specimen of P. syngenes, which I at firstdescribed as a variety of muscorum
Bulletin of the Museum of Comparative Zoology at Harvard College . eter If mm. Pupa syngenes, Pilsbrt, The Nautilus, 1890, Vol. IIL p. 296, Plate V. Figs. 1, 2. Two specimens of this form are before me, and I am in doubt whether to givethem a new name, as they may be only sinistral monstrosities of the commonP. muscorum. The shells are labelled Arizona in the Academy collection, col-lector not known. (Since the above paragraphs were in type, I have received a communication frommy friend, Dr. V. Sterki, to whom I sent a specimen of P. syngenes, which I at firstdescribed as a variety of muscorum. He says : — I am satisfied that it is a species, and not a var. of muscorum ; the shape of thewhole siiell, the last whorl so considerably flattened, and ascending, the number ofwhorls, seem to me to prove its specifical rank. . After washing out the aper-ture of your specimen, I saw a rather strong lamella or tooth on the columella, anda barely perceptible trace of an inter-palatal lamella, which, however, is validifiedby the impression on the outside.).
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