VOLVULA. 235 



fiicicola is a (posthumous) mule name, absolutely unknown excejDt 

 for Brusina's statement that it is the B. acuminata Brug. 



Var. BREVI8 Pilsbry. PI. 60, fig. 11, 



Shell regularly spindle-shaped, or forming an elongated oval 

 which is pointed above and broad below; it is thin, almost trans- 

 parent, and glossy; sculpture slight spiral strise at each end, and 

 very faint microscopic lines in the same direction on the interme- 

 diate space ; the striae near the apex are fewer and more remote 

 than those near the base; epidermis inconspicuous; color, clear 

 white. Mouth very long, commencing at the top in a short and 

 slightly recurved spike, and gradually widening towards the base, 

 where it is expanded and rounded ; outer lip flexuous, with a sharp 

 edge ; inner lip consisting of a mere film on the upper part and in the 

 middle, but thickened and reflected at the base, so as to give the 

 pillar the appearance of having a short fold ; pillar twisted, and 

 bending a little to the left. (Jeff7\). 



Alt. 3-75, diam. 1-87 mill. 



Northern Europe ; Mediterranean. 



This form is far stumpier than the typical V. acuminata, the 

 diameter being nearly one-half the altitude. The references to 

 Forbes and Hanley, Jeffi-eys (Brit. Conch.), and Adams in the 

 above synonymy, belong to this form. 



V. OXYTATA Bush. PL 26, fig. 63. 



Shell rather small, somewhat cylindrical, with a sharp, spike-like 

 apex and a tapering, rounded, anterior end, rather thin, semi-trans- 

 parent, somewhat lustrous, with four or five very fine, indistinct, 

 punctate spiral lines on each end, and very indistinct, microscopic 

 striae on the intervening surfiice. Aperture long, very narrow, ex- 

 panded anteriorly ; outer lip thin, following the curvature of the 

 body whorl to just below the middle where it continues in a straight 

 line and joins the inner lip in a broad curve; inner lip very thin, 

 slightly reflected anteriorly over a slight umbilical chink. Color 

 bluish-white under a pale yellow epidermis. Length of one of the 

 largest specimens 4, breadth. To mill. (Bush). 



East coast of the United States, from Hatteras to Cuba, 5-63 fms. 



V. oxytata Bush, Trans. Conn. Acad, vi, p. 468, pi. 45, f 12, 

 1885. — Dall, Blake Rep. Gastr. p. 50. — ? V. persimilis Morch, 

 Malak. Bl. xxii, p. 179, 1875. 



