EXPLANATION OF PLATE XXIX. 
Fig. 1. Two ranks of eleven teeth from the centre, and of the thirtieth 
to the thirty-fourth from the margin, of the radula of H. gulosa, 
Gould : much magnified. 
„ 2. Jaw of same : magnified. 
„ 3. Sculpture of the shell of the same, drawn from below the suture 
of the last whorl behind the aperture : magnified. 
„ 4. Genital system of the same. 
,, 5. Animal of the same, left side, mantle-collar reflected and exposing 
rudimentary lobes : enlarged one and a-half diameters. 
„ G. Animal of the same, right side, showing mode of progression and 
the mantle lobes surrounding the pulmonary orifice : enlarged 
one and a-half diameters. 
(Reproduced from drawings by C. Hedley.) 
