HALIOTIS. 115 



rather thin, dark reddish -brown, variegated with blotches of snowy- 

 white, especially in the young ; the spire often of a pecu liar bronze- 

 red. Surface with a few impressed spiral stria?, often scarcely visi- 

 ble, and low, very irregular undulations or radiating folds, these, 

 too, often subobsolete ; it is not strongly carinated at the position of 

 the row of perforations, in adults, aud there are several rather strong 

 cords revolving parallel with the holes, between them and the colu- 

 mellar margin. Spire low, composed of about 3 whorls. Inside 

 brilliantly pearly ; columellar plate narrow, its edge rounded, con- 

 vex, sloping outward, obliquely truncated below. Cavity of spire 

 visible from below, rather deep, usually of a beautiful red-bronze 

 color inside. 



Length 6Q, width 40, convexity 18 mill. * 



Length 71, width 46, convexity 22 mill. 



Cape of Good Hope. 



H. sanguinea Hanley, Young Conchologists' Book of Species, p. 

 60, frontispiece f. 5 (1841). — Reeve, Conch. Icon., f. 17. — Sowb. 

 Thes. Conch, v, p. 93, 94. — Weinkatjff, Conchy 1. Cab., t. 16, 

 f. 3, 4.—H. ficiformis Menke, Zeitschr. f. Mai. 1845, p. 97.— Phil. 

 Abbild., ii, p. 70, t. 4, f. 3. — H. spadicea Krauss, mss. 



The more prominent characters are the peculiar form, narrowed 

 at the anterior end, the reddish or chocolate surface, smooth except 

 for radiating folds, and the coppery-red stain within the cavity 

 of the spire. This last feature is sometimes absent. The perfora- 

 tions are numerous, close together and almost perfectly circular. 

 The columellar shelf or plate slopes outward, is rather narrow and 

 convex on its face. The shell when placed upon a plane surface, 

 rests upon its two extremities, both lips being arched. The apex is 

 nearer to the margin than in either H. midce or H. capensis, the two 

 Cape species with which this one agrees in lacking spiral striation. 



H. multiperforata Reeve. PI. 6, fig. 36. 



Shell oblong-ovate, rather flexuous, spiral portion of the whorls 

 somewhat elevated ; spirally linearly grooved, grooves a little 

 waved, irregular ; holes rather small, numerous, ten open ; exterior 

 dark brown, varigated with green, interior whitish. 



This darkly variegated species, the surface of which is smooth, en- 

 graved with fine waved spiral lines, has somewhat the form of the H. 

 sanguinea ; the spiral portion of the shell being more than usually 

 raised. The holes are numerous and close-set. (Beeve.) 



Habitat unknown. 



H. multiperforata Rve. Conch. Icon., t. 9, f. 15, 1846. 



