384 VOLVATELLA. 



Animal uniform pale orange ; as seen through the shell, freckled 

 with red, which assumes transverse bands. Head subquadrate, 

 slightly emarginate in front and provided with small lateral crests. 

 Eyes black, inserted in a fissure on the side of the head. Foot ob- 

 long, truncated and widest in front, and gradually tapering to a 

 rounded tip behind. Motions active ; when disturbed discharging 

 a viscid white fluid from the vent (Pse.). 



Huahine. 



V. pyriformis Pse., Amer. Journ. Conch, iv, p. 73, pi. 7, f. 5 ; pi. 

 12, f. 23. — V. 2nriformis Mts., Donum Bism., p. 54, pi. 2, f. 21. 



Descriptions of the shells of this genus cannot be relied on for 

 reason of the distorted change that takes place soon after they are 

 removed from the animal and become dry. The shell resembles 

 that of Lophocercus vigourouxii Montr. (Pse.). 



V. FRAGiLis Pease. PI. 42, figs. 27, 28. 



Shell thin, horny, subpyriforra, convolute (finely striated longi- 

 tudinally) covered with a membranaceous epidermis ; spire none ; 

 aperture wide, dilated at the base and contracted posteriorly ; the 

 lips thin and entire, meeting at about one-half the length of the 

 shell and folding closely one over the other, posteriorly produced in 

 the form of a tube, leaving a circular aperture ; color yellowish 

 {Pse.). 



Scmdivich Is. 



V.fragilis Pse., P. Z. S. 1860, p. 20 ; Amer. Journ. Conch, iv, p. 

 73, pi. 7, I 4. 



Animal : Mantel not exposed ; cephalic disk quadrate, slightly 

 in advance of the shell ; tentacular lobes four, produced from the 

 .corners of cephalic disk, round, short and bluntly rounded at their 

 extremities, anterior pair slightly longer; foot small, not extending 

 posteriorly beyond the aperture, and not reaching in front the ante- 

 rior side of the cephalic disc, of an oblong triangular shape, widest 

 in front ; eyes minute at inner base of posterior tentacles ; anal 

 opening at posterior aperture; color white. This anomalous ani- 

 mal was found on sea-weed dredged from a salt water pond. It re- 

 remained alive several days in a glass jar ; it was very timid and 

 slow in its movements. The animal would occasionally protrude 

 slightly from the posterior aperture (Pse.). 



