HALIOTIS. 91 



the same Stomatia-like form as H. stomaticeformis, but with strong 

 scaly ridges, and the whorls of the elevated spire more sloped. 



(Sowb.) Habitat unknown. 



H. elevata Sows. Thes. Conch, v, p. 27, f. 116, 117. 

 H. HANLEYAXA Sowerby. PL 11, fig. 59. 



Shell red variegated, silvery inside, rough, narrow trapezoidal, 

 with concentric thick elevated undulating wrinkles and spiral 

 elevated line, line unequal, subalternating. Spire acute, much 

 elevated, w r horls angular. Marginal area tuberculate-ribbed. 

 Laminated more thickly and roughly than H. lamellosa, and chiefly 

 remarkable for its exserted and elevated spire, in which respect it 

 resembles H. stomaticeformis. (Sowb.) 



Habitat unknown. 



H. Hanleyana SOWB., Thes Conch, v, p. 26, f. 28. 



This is perhaps a distorted H. lamellosa Lam. 



H. YENUSTA Adams & Reeve. PL 20, figs. 15, 16. 



Shell ovate, depressed-plane, spirally delicately ribbed and striated, 

 ribs distant nodulose ; foramina sub-prominent. White variegated 

 with vivid scarlet, tinged at the apex with purple. Inside silvery. 

 (Ads. & Eve.) Eastern Seas. 



H. venusta ADS. & RYE. Voy. of H. M. S. Samarang, ZooL, p. 

 69, t. 13, f. 5a, b. SOWERBY, Thes. Conch, v, p. 29, f. 55. 



Compared by Sowerby with H. concinna. I have not seen the 

 species. 



H. SQUAMATA Reeve. PL 18, fig. 2. 



Shell long-oval, , very convex ; spire nearly terminal ; surface 

 closely, finely lirate, the lirse finely scaly. Holes small, oval, seven ' 

 or eight open. 



The shell is long, elliptical, with quite convex back. The right 

 side is generally a little straighter than the left. The color is 

 various, but usually a rich dark red or reddish-brown, with yellowish 

 or greenish-yellow stripes and patches. The surface has numerous 

 close, minutely scaly spirals, alternately larger and smaller or with 

 every fourth one larger than the three intervening. There are also 

 elevated plate-like folds developed on the later part of moderate or 

 large specimens, like those of H. lamellosa Lam. but less prominent, 

 smaller, more irregular. The spire is very small, subterminal. In- 

 side silvery, iridescent, Columellar shelf concealing the cavity of 



