. Annals and magazine of natural history : including zoology, botany and geology. Pneumonobranchiate Mollusca. 331 Arionid^. The Nanina Albinensis, N. Otaheitana, and N. Panayensis all have very numerous nearly uniform teeth, close together on a very broad lingual band. Parmacella {Olivieri). The teeth numerous in very close cross lines, with a compressed elevated central ridge with a flat edge ending in two teeth. TeSTACELLIDjE. Fig. 1. Lingual membrane broad; teeth numerous in diverging cross series, those of the first six or seven lines yellow, the first darkest, the rest tran
. Annals and magazine of natural history : including zoology, botany and geology. Pneumonobranchiate Mollusca. 331 Arionid^. The Nanina Albinensis, N. Otaheitana, and N. Panayensis all have very numerous nearly uniform teeth, close together on a very broad lingual band. Parmacella {Olivieri). The teeth numerous in very close cross lines, with a compressed elevated central ridge with a flat edge ending in two teeth. TeSTACELLIDjE. Fig. 1. Lingual membrane broad; teeth numerous in diverging cross series, those of the first six or seven lines yellow, the first darkest, the rest transparent, without any in the central series; the teeth pinshaped, slightly curved, with a roundish head and an acute tip, only attached to the thin lingual membrane by a small central process (see fig. 1). HeLICIDjE. Fig. 2. Achatina fulica. In this and the following figures, c represents the central, I the lateral, and u the exterior lateral teeth. The teeth of all the exotic species I have examined are like those described in the European kinds. I figure the teeth of Achatina fulica (fig. 2), as the teeth of that genus have not before been described; they are numerous in each cross series, those of the two central series are small; they are all small, four-sided, rather broader than long, with a blunt rather large central tip. The teeth of Par tula {faba) are like those of Bulimus; they are placed on a broad pale yellowish lingual membrane in numerous straight transverse lines on each side of the central line, and are equal and uniform. VERONICELLIDiE. The teeth of Veronicella are very like those of Bulimus. 23* The. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original London
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