. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology; Zoology. Animal of Vilrina.^. Lingual dentition of V. limpida (Morse). T I e j aw is highly arched, ends acuminated, blunt; anterior surface smooth cutting margin with a prominent beak-like median projection. I have figured; the jaw of V. limpida on PI. XVL Fig. H. I have found it to be the same in V. exilis and Pfeifferi. I have not examined either jaw or lingual membrane in V. Angelicce. Fig. 50 gives a general idea of the lingual membrane. The centrals have a quadrangular base of attachment, longer than broad. The
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology; Zoology. Animal of Vilrina.^. Lingual dentition of V. limpida (Morse). T I e j aw is highly arched, ends acuminated, blunt; anterior surface smooth cutting margin with a prominent beak-like median projection. I have figured; the jaw of V. limpida on PI. XVL Fig. H. I have found it to be the same in V. exilis and Pfeifferi. I have not examined either jaw or lingual membrane in V. Angelicce. Fig. 50 gives a general idea of the lingual membrane. The centrals have a quadrangular base of attachment, longer than broad. The reflection is short, with three distinct cusps, the median long and slender, bulging at the sides, the outer ones very short ; all the cusps bear cutting points in proportion to their length. The lateral teeth are arranged in straight transverse rows. They are like the centrals, but unsymmetrical by the partial suppression of the inner 1 From 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 Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
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Keywords: ., bookauthorha, bookcentury1800, bookdecade1860, booksubjectzoology
