. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Fig. 3.— Fretum malaitaensis Clapp. Radula. pedal-groove, and di\'ided ventral surface of the foot, of the genus Eurypus Semper (= Fretum Sykes, Proc. Mai. soc. London, 1900, 4, p. 140). Radula (Fig. 3, M. C. Z. 36,768, slide 1,631) containing about 100 rows of teeth with a formula of 35-12-1-12-35. 22. Fretum co^XAVUM, sp. nov. Plate 1, fig. 9-11. T^'pe. M. C. Z. 32,552. Auki, Malaita Id. Shell perforate, thin, shining, early whorls smooth, later whorls with very strong numerous regularly spaced growth-wrinkles above


. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Fig. 3.— Fretum malaitaensis Clapp. Radula. pedal-groove, and di\'ided ventral surface of the foot, of the genus Eurypus Semper (= Fretum Sykes, Proc. Mai. soc. London, 1900, 4, p. 140). Radula (Fig. 3, M. C. Z. 36,768, slide 1,631) containing about 100 rows of teeth with a formula of 35-12-1-12-35. 22. Fretum co^XAVUM, sp. nov. Plate 1, fig. 9-11. T^'pe. M. C. Z. 32,552. Auki, Malaita Id. Shell perforate, thin, shining, early whorls smooth, later whorls with very strong numerous regularly spaced growth-wrinkles above, which end abruptly at the carina, very smooth below. Embryonic shell consisting of two whorls, darker in color than the later whorls. SheU chamois colored above, lighter below, fading to nearly white in the umbilical region. WTiorls 5^, convex, regularly increasing in size, outhne of spire, concave, last whorl not descending, strongly shouldered. Aperture nearly straight. Peristome simple. Columella obhquely descending, strongly thickened and reflexed in a narrow tongue-like process over a portion of the umbilical region. G. d. 10 mm. 1. d. mm. alt. mm. c / (fllf MLl s I O (I Vov ^ Fig. 4.— Fretum concavum Clapp. Radula. The concave outline of the spire is the most striking character of the shell. The mantle of the animal is black with large irregular milk-white patches which show clearly through the semitransparent. 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, bookcentury1900, bookdecade1920, booksubjectzoology